-“

© Check List

ANNOTATED LIST OF SPECIES Check List 19 (2): 235-246

https://doi.org/10.15560/19.2.235

Semiaquatic bugs (Insecta, Hemiptera, Heteroptera,
Gerromorpha) from Parque Natural Municipal das Andorinhas,
Ouro Preto, Minas Gerais state, Brazil

GuSsTAVO LISBOA VIEIRA MACHADO! , OSEIAS MARTINS MAGALHAES’,
Marco ANTONIO ALVES CARNEIRO!, FELIPE FERRAZ FIGUEIREDO MOREIRA”

1 Laboratério de Entomologia Ecolégica, Departamento de Biodiversidade, Evolugao e Meio Ambiente, Instituto de Ciéncias Exatas
e Bioldgicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil « GLVM: gustavo.lisboa@aluno.ufop.edu.br
® https://orcid.org/0000-0003-2059-9527 « MAAC: marco.carneiro@ufop.edu.br ® https://orcid.org/0000-0003-3814-8118

2 Laboratorio de Entomologia, Instituto Oswaldo Cruz, Fundacgao Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil « OMM:
biooseiasmartins@gmail.com @ https://orcid.org/0000-0003-4988-7119 « FFFM: ppmeiameiameia@gmail.com ® https://orcid.org/
0000-0002-6692-0323

* Corresponding author

Abstract. We present a survey of the semiaquatic bugs (Insecta, Hemiptera, Heteroptera, Gerromorpha) from Par-
que Natural Municipal das Andorinhas and adjacent areas, Ouro Preto, Minas Gerais state, southeastern Brazil.
Thirteen species are recorded from the locality based on regular collection events, namely Brachymetra albinervus
(Amyot & Serville, 1843); Cylindrostethus palmaris Drake & Harris, 1934; Halobatopsis delectus Drake & Harris,
1941; Ha. platensis (Berg, 1879); Metrobates plaumanni genikos Nieser, 1993; Neogerris kontos Nieser, 1994 (Gerri-
dae); Hydrometra fruhstorferi Hungerford & Evans, 1934 (Hydrometridae); Platyvelia brachialis (Stal, 1860); Rha-
govelia macta Drake & Carvalho, 1955; R. robusta Gould, 1931; R. sbolos Nieser & Melo, 1997; R. triangula Drake,
1953; and R. trianguloides Nieser & Melo, 1997 (Veliidae).

Keywords. Aquatic insects, faunistics, Neotropical Region, South America

Academic editor: Julianna Freires Barbosa
Received 7 February 2022, accepted 14 February 2022, published 14 April 2023

Machado GLV, Magalhaes OM, Carneiro MAA, Moreira FFF (2023) Semiaquatic bugs (Insecta, Hemiptera, Heteroptera, Gerromorpha)
from Parque Natural Municipal das Andorinhas, Ouro Preto, Minas Gerais state, Brazil. Check List 19 (2): 235-246. https://doi.
org/10.15560/19.2.235

of the semiaquatic bugs from Parque Natural Munici-
pal das Andorinhas (PNMA) and adjacent areas, Ouro
Preto, Minas Gerais state (MG), southeastern Brazil, an
underexplored locality, including the first record from
MG for one species.

Introduction

Heteroptera (Insecta, Hemiptera), or true bugs, is a
group of insects with worldwide distribution, which is
more diverse on the tropics (Mazzucconi et al. 2009a).
It comprises seven infraorders, of which Gerromorpha
and Nepomorpha are intimately related to water bod-
ies of all continents, except for Antarctica (Nieser and

Study Area

the journal of
biodiversity data

Melo 1997; Polhemus and Polhemus 2008). Gerromor-
pha contains eight families and over 60 genera of semi-
aquatic, predatory bugs that play an important role on
aquatic ecosystems and can be used as indicators of bio-
logical quality (Moreira 2015). Here, we report a survey

Parque Natural Municipal das Andorinhas is part of
Cachoeira das Andorinhas Environmental Protection
Area, located in the city of Ouro Preto, MG, southeast-
ern Brazil. Inserted in a context of conservation impor-
tance, PNMA protects preserved fragments of Atlantic

©The authors. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use,
distribution, and reproduction in any medium, provided the original author and source are credited.

236

Forest (montane seasonal semideciduous forest) and
rupestrian fields, as well as a rich diversity of fauna and
flora. Most of the PNMA vegetation has been subject
to anthropogenic disturbance, with the forest patches
predominantly formed by low trees with small-diam-
eter trunks (IEFMG 2009; Avila-Jinior et al. 2020).
Nonetheless, we recently described a new species of
Microvelia Westwood, 1834 (Gerromorpha, Gerridae)
from this area (Magalhaes et al. 2021), showing the im-
portance of PNMA for the conservation of the local
aquatic fauna.

Methods

Fieldwork was carried out monthly in 2018 and 2019
in four localities within PNMA and three adjacent to it
(Figs. 1-8), by active search with the aid of aquatic nets.
Geographic coordinates of the sampling stations were
obtained with a GPS receiver. Specimens were fixed
and preserved in 80% ethanol, and subsequently depo-
sited in the the Laboratorio de Entomologia Ecoldgi-
ca, Departamento de Biodiversidade, Evolucao e Meio
Ambiente, Universidade Federal de Ouro Preto, Ouro
Preto, Brazil (LEE). Photographs were obtained using
a Leica M205 C stereomicroscope coupled with a Leica
DMC2900 digital camera, and captured using the Leica
LAS imaging system.

Check List 19 (2)

Results

Family Gerridae
Subfamily Charmatometrinae
Genus Brachymetra Mayr, 1865

Brachymetra albinervus (Amyot & Serville, 1843)
Figure 9

New records. BRAZIL —- Minas Gerais « Ouro Preto,
Parque Natural Municipal das Andorinhas, Bicicleta
Station; —20.3466°, —043.4950°; 25.V.2018; G.L.V. Mach-
ado leg.; 2 3, apterous, LEE-GE0003 « same data except
Folhinha Station; —20.3502°, —043.4900°; 15.VI.2018;
2 4, 3 Y, apterous, LEE-GE0004 + same data except
31.VIII.2018; 6 3, apterous, LEE-GE0005 « same data
except 05.XII.2018; 3 3, apterous, LEE-GE0006 « same
data except 21.XII.2018; 1 2, apterous, LEE-GE0007 +
same data except Jesus Station; —20.3622°, —043.4886°;
06.IV.2018; 1 9, apterous, LEE-GE0008 « same data ex-
cept Macaco Station; —20.3364°, —043.5094°; 18.V.2018;
3 4, 5 Y, apterous, LEE-GE0009 « same data except
12.VI1.2018; 1 4, 2 9, apterous, LEE-GE0010 « same data
except 17.VII.2018; 3 3, 2 9, apterous, LEE-GE0011 +
same data except 10.[X.2018; 1 9, apterous; LEE-
GE0012 + same data except 27.1X.2018; 1 4, 1 9, apter-
ous, LEE-GE0013 « same data except 26.X1.2018; 3 4 1

SPATIAL DISTRIBUTION OF SAMPLE STATIONS IN THE PARQUE NATURAL MUNICIPAL DAS ANDORINHAS
OURO PRETO - MINAS GERAIS

20°20'24"S

20°21'36"S

20°22'48"S

43°31'12"W 43°30'0"W

A Sample Stations

—— Drainage Network

| Limit of Conservation Unit
GN Ouro Preto City

[_] State Limit

0 500 1000 1500 m
——

Production: Gustavo Lisboa Vieira Machado
Geographical Coordinate System
Datum: SIRGAS 2000

Cartographic Base: IDE-Sisema
January/2022

43°28'48"W

Figure 1. Map with the sampling sites within and adjacent to Parque Natural Municipal das Andorinhas, Ouro Preto, Minas Gerais

state, Brazil.

Machado et al. | Gerromorpha from Parque das Andorinhas 237

Figures 2-8. Photographs of collecting localities within and adjacent to Parque Natural Municipal das Andorinhas, Ouro Preto,
Minas Gerais State, Brazil. 2. Bicicleta Station (—20.3466°, -043.4950°). 3. Brejo Station (—20.3655°, —043.4881°). 4. Folhinha Station
(—20.3502°, -043.4900°). 5. Jesus Station (-20.3622°, —043.4886°). 6. Macaco Station (—20.3364°, —043.5094°). 7. Praia da Rancheira
Station (—20.3450°, —043.4983°). 8. Véu da Noiva Station (—20.3588°, —043.4888°).

Q, apterous, LEE-GE0014 « same data except 10.1.2019; 1 4, apterous, LEE-GE0016 « same data except 10.XII.
2 3, apterous, LEE-GE0015 « same data except Praiada 2018; 1 4, apterous, LEE-GE0017 + same data except
Rancheira Station; —20.3450°, —043.4983°; 18.V.2018; 11.1.2019; 1 4, apterous, LEE-GE0018 + same data

238

except Véu da Noiva Station; —20.3588°, —043.4888°;
16.111.2018; 15 @, apterous, LEE-GE0019 « same data
except 11.V.2018; 5 @, apterous, LEE-GE0020 + same
data except 08.VI1.2018; 2 3, apterous, LEE-GE0021 +
same data except 03.VII.2018; 4 3, 1 9, apterous, LEE-
GE0022 « same data except 03.VIII.2018; 3 4, apterous,
LEE-GE0023 « same data except 19.X.2018; 1 <4, apter-
ous, LEE-GE0024 « same data except 17.1.2019; 1 9, ap-
terous, LEE-GE0025 « same data except 15.11.2019; 1 3,
apterous, LEE-GE0026 « same data except 14.XII.2019;
1 4,1 9, apterous, LEE-GE0027.

Identification. This species is 4.25-6.70 mm long and
yellowish to reddish brown. Diagnostic features are as
follows: pronotum of apterous form without dark medi-
an line, not reaching abdominal mediotergite I; acetab-
ula covered by silvery setae dorsally; fore femur slightly
arched, with conical black setae ventrally, at least 1.5
times wider than middle femur; male abdominal me-
diotergite VII trapezoid; and male abdominal segment
VIII in natural position with half of its length exposed
(Cordeiro 2017).

Subfamily Cylindrostethinae
Genus Cylindrostethus Mayr, 1865

Cylindrostethus palmaris Drake & Harris, 1934

New records. BRAZIL - Minas GERAIS « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Macaco
Station; —20.3364°, —043.5094°; 18.V.2018; G.L.V. Ma-
chado leg.; 1 d, apterous, LEE-GE0028.

Identification. This species presents an elongated, ro-
bust body, at most 20 mm long; mesonotum of apterous
form with a pair of longitudinal black stripes, each as
wide as median yellow stripe; fore tibia black; posterior
margin of male abdominal sternum VII rounded; baso-
lateral processes of male proctiger subequal in length
and width; and apex of female abdominal tergum VIII
acute (Floriano et al. 2016).

Subfamily Trepobatinae
Genus Halobatopsis Bianchi, 1896

Halobatopsis delectus Drake & Harris, 1941

New records. BRAZIL - Minas GErAIs « Ouro Preto,
Parque Natural Municipal das Andorinhas, Folhinha
Station; —20.3502°, —043.4900°; 31-VIII.2018; G.LV.
Machado leg.; 2 3, apterous; LEE-GE0029 + same data
except Jesus Station; —20.3622°, —043.4886°; 27.IV.2018;
4 3, 4 9, apterous, LEE-GE0030 + same data except
05.X1.2018; 1 4, macropterous, 2 9, apterous, LEE-
GE0031 + same data except 17.1.2019; 1 4, apterous,
LEE-GE0032 + same data except Praia da Rancheira
Station; -20.3450°, —043.4983°; 10.1X.2018; 3 4, 1 9,
apterous, LEE-GE0033.

Identification. Both representatives of the genus Halo-
batopsis present in the study area display the mesono-
tum with longitudinal black stripes. Halobatopsis
delectus can be distinguished by the fore femur with a

Check List 19 (2)

tubercle at basal fourth; male abdominal segment VIII
with a dark brown to blackish ventral spine; and female
abdominal laterotergites reflected over the medioter-
gites (Nieser and Melo 1999).

Halobatopsis platensis (Berg, 1879)
Figure 10

New records. BRAZIL - MINAS GERAIS « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Bicicle-
ta Station; —20.3466°, —043.4950°; 23.11.2018; G.LYV.
Machado leg.; 9 &, 6 9, apterous, LEE-GE0034 « same
data except 11.V.2018; 1 4, 2 9, apterous, LEE-GE0035
¢ same data except 25.V.2018; 1 3, 9 9, apterous, LEE-
GE0036 « same data except 03.VII.2018; 2 4, 5 9, apter-
ous, LEE-GE0037 « same data except 27.VIII.2018; 2 4,3
9, apterous, LEE-GE0038 « same data except 05.X1.2018;
2 4, 12 9, apterous, LEE-GE0039 « same data except
14.X1I.2018; 2 @, 5 9, apterous, LEE-GE0040 + same
data except 12.11.2019; 5 4, 6 9, apterous, LEE-GE0041
« same data except Brejo Station, -20.3655°, —043.4881°;
27.1V.2018; 2 4, 3 2, apterous, LEE-GE0042 « same data
except 20.VII.2018; 3 @, apterous, LEE-GE0043 « same
data except Folhinha Station; —20.3502°, —043.4900°;
20.V1I.2018; 1 9, apterous, LEE-GE0044 « same data ex-
cept 05.XII.2018; 1 3, apterous, LEE-GE0045 « same data
except 24.VIII.2019; 7 4, 3 9, apterous, LEE-GE0046 +
same data except Jesus Station; —20.3622°, —043.4886°;
06.1V.2018; 3 4, 5 9, apterous, LEE-GE0047 « same data
except 27.IV.2018; 1 3, apterous, LEE-GE0048 « same
data except 15.VI.2018; 1 3, apterous, LEE-GE0049
¢ same data except 27.VII.2018; 4 3, apterous, LEE-
GE0050 « same data except 05.X1.2018; 14 3, 6 9, apter-
ous, LEE-GE0051 « same data except 12.XI.2018; 2 3,
apterous, LEE-GE0052 « same data except Macaco Sta-
tion; -20.3364°, —043.5094°; 18.V.2018; 1 4, apterous,
LEE-GE0053 « same data except Praia da Rancheira Sta-
tion; -20.3450°, —043.4983°; 13.IV.2018; 15 4, 8 9, ap-
terous, LEE-GE0054 « same data except 08.VI.2018; 1 3,
apterous, LEE-GE0055 « same data except Véu da Noiva
Station, -20.3588°, —043.4888°, 03.VIII.2018; 2 3, apter-
ous, LEE-GE0056 « same data except 14.XII.2018; 1 3,
apterous, LEE-GE0057 « same data except 17.1.2019; 1
Q, apterous, LEE-GE0058 « same data except 13.11.2019;
1 9, apterous, LEE-GE0059.

Identification. Halobatopsis platensis can be distin-
guished from H. delectus by the males without a ventral
spine on abdominal segment VIII, and the females with
abdominal laterotergites horizontal to slightly slanting
dorsally (Nieser and Melo 1999).

Genus Metrobates Uhler, 1871

Metrobates plaumanni genikos Nieser, 1993
Figure 11

New records. BRAZIL —- Minas GErals « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Folhi-
nha Station; —20.3502°, —043.4900°; 05.XII.2018; G.L.V.
Machado leg.;1 3, macropterous, LEE-GE0060 + same
data except Praia da Rancheira Station; —20.3450°,

Machado et al. | Gerromorpha from Parque das Andorinhas 239

Figures 9-15. Collected specimens, habitus. 9. Brachymetra albinervus, apterous male. 10. Halobatopsis platensis, apterous female.
11. Metrobates plaumanni genikos, macropterous male. 12. Neogerris kontos, apterous female. 13. Rhagovelia macta, apterous
male. 14. Rhagovelia robusta, apterous male. 15. Rhagovelia triangula, apterous female.

240

—043.4983°; 10.XII.2018; 2 2, apterous, LEE-GE0061.

Identification. This species is diagnosed by the follow-
ing features: antennomere I longer than II + I]; anten-
nomere IV shorter than III; mesoacetabulum without
a ventral spine; fore femur without a ventral spine; and
paramere not distinctly widened after middle curve
(Nieser 1993).

Subfamily Gerrinae
Genus Neogerris Matsumura, 1913

Neogerris kontos Nieser, 1994
Figure 12

New records. BRAZIL - Minas Gerals « Ouro Preto,
Parque Natural Municipal das Andorinhas, Brejo Sta-
tion; —20.3655°, —043.4881°; 27.IV.2018; G.L.V. Macha-
do leg.; 1 4, 1 9, apterous, LEE-GE0062.

Identification. Neogerris kontos can be distinguished
from American congeners based on the following char-
acteristics: body 3.90-5.20 mm long; length of anten-
nomere I subequeal to width of interocular space + one
eye; apterous pronotum broader than long, with poste-
rior lobe virtually absent; and male abdominal segment
VIII without tufts of setae laterally (Nieser 1994).

Family Hydrometridae
Subfamily Hydrometrinae
Genus Hydrometra Latreille, 1797

Hydrometra fruhstorferi Hungerford & Evans, 1934

New records. BRAZIL - Minas GErRAIs « Ouro Preto,
Parque Natural Municipal das Andorinhas, Folhinha
Station; -—20.3502°, —043.4900°; 15.VI.2018; G.L.V.
Machado leg.; 1 3, apterous, LEE-GE0001 + same
data except Macaco Station; —20.3364°, —043.5094°;
18.V.2018; 1 3, apterous, LEE-GE0002.

Identification. This species can be distinguished by its
elongated body; clypeus broad, subquadrate, with the
anterior margin obtusely pointed, not excavated; pro-
and mesoacetabula with circular punctures; and male
abdominal sternum VI with a pair of mammilose pro-
jections joined by a wide transverse ridge (Hungerford
and Evans 1934; Moreira and Barbosa 2013).

Family Veliidae
Subfamily Rhagoveliinae
Genus Rhagovelia Mayr, 1865

Rhagovelia macta Drake & Carvalho, 1955
Figure 13

New records. BRAZIL - Minas GERAIS « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Macaco
Station; —20.3364°, —043.5094°; 17VII.2018; G.L.V. Ma-
chado leg.; 2 3, 4 9, apterous, LEE-GE0065.

Identification. Rhagovelia macta belongs to the itati-
aiana group of species, based on the body blackish with
distinctively contrasting yellow or orange markings on
pronotum and abdominal laterotergites; the pronotum

Check List 19 (2)

of the apterous form distinctly shorter than three times
the length of the exposed mesonotum, but longer than
the dorsal length of the eye, with the posterior mar-
gin convex; the ventral abdominal sutures simple and
unmodified; and the apterous female without a dor-
sal, median, abdominal carina. Within this group, it is
diagnosed by the following features: male abdominal
sternum VII with a median tuft of setae anteriorly; me-
sonotum orange at least centrally; and male hind femur
greatly incrassate, with two large spines separated by
about eight smaller ones (Polhemus 1997).

Rhagovelia robusta Gould, 1931
Figure 14

New records. BRAZIL - Minas Gerals « Ouro Preto,
Parque Natural Municipal das Andorinhas, Bicicleta
Station; —20.3466°, —043.4950°; 11.V.2018; G.L.V. Mach-
ado leg.; 2 9, apterous, LEE-GE0066 « same data except
25.V.2018; 5 9, macropterous, LEE-GE0067 « same data
except 30.XI.2018; 8 4, 10 9, apterous, LEE-GE0068
« same data except Folhinha Station; -—20.3502°,
—043.4900°; 20.VI1I.2018; 1 9, apterous, LEE-GE0069
¢ same data except 20.XII.2018; 2 4, 1 9, apterous,
LEE-GE0070.

Identification. This species belongs to the robusta
group of species, based on the pronotum of the apterous
form longer than three times the exposed portion of the
mesonotum; the hind tibia with the apical spur straight,
when present; the venter of the body not densely cov-
ered by black denticles; the posterolateral margins of
male abdominal segment VII without large black den-
ticles; the abdomen of the apterous female without a
median carina dorsally; and the pronotum of the mac-
ropterous female without an elevated posterior projec-
tion (Polhemus 1997; Moreira et al. 2012). Among the
species of this group, it is diagnosed by the following
characteristics of the apterous male: jugum and adja-
cent portion of proepisternum with small black den-
ticles; pronotum mostly dark brown to black, strongly
contrasting with an yellowish-brown or orange-brown
mark on anterior lobe; middle trochanter dark-brown
to black; hind trochanter with small subequal spines;
hind femur with 3 or 4 irregular rows of spines, with a
large spine near its middle dorsally displaced from oth-
ers; hind tibia with several subequal spines through-
out length, a large preapical spine, and an apical spur;
and sides of abdominal segment VII without patches of
small black denticles (Magalhaes et al. 2016).

Rhagovelia sbolos Nieser & Melo, 1997
Figures 19-21

New records. BRAZIL —- MINAS GERAIS « Ouro Preto,
Parque Natural Municipal das Andorinhas, Brejo Sta-
tion; —20.3655°, —043.4881°; 12.X1I.2018; G.L.V. Macha-
do leg.; 1 3, apterous, LEE-GE0071 + same data except
14.1X.2018; 2 3, 2 9, apterous, LEE-GE0072 + same
data except Folhinha Station; —20.3502°, —043.4900°;
11.V.2018; 1 3, macropterous, LEE-GE0073 + same

Machado et al. | Gerromorpha from Parque das Andorinhas 241

Figures 16-21. Collected specimens, habitus. 16-17. Rhagovelia trianguloides. 16. Apterous male. 17. Apterous female. 18. Platy-
velia brachialis, micropterous female. 19-21. Rhagovelia sbolos. 19. Apterous male. 20. Macropterous male. 21. Forewing.

242

data except 05.X.2018; 1 4, 4 9, apterous, LEE-GE0074
« same data except 20.VII.2018; 1 9, apterous, LEE-
GE0075 + same data except 05.XII.2018; 1 4, apter-
ous; LEE-GE0076 + same data escept Jesus Station;
~20.3502°, —043.4900°; 15.VI1.2018; 1 3, 2 9, apter-
ous, LEE-GE0077 + same data except Macaco Station;
—20.3364°, —043.5094°; 18.V.2018; 1 9, apterous, LEE-
GE0078 « same data except 17-VIII.2018; 10 9, apterous,
LEE-GE0079 « same data except 27.[X.2018; 2 9, apter-
ous, LEE-GE0080 « same data except 26.XI.2018; 5 <,
apterous, LEE-GE0081 « same data except 26.X1.2018; 1
3, apterous, LEE-GE0082 « same data except 05.11.2019;
13 4, 3 9, apterous, LEE-GE0083 » same data except
20.1V.2018; 5 4, 5 9, apterous, LEE-GE0084 + same
data except 12.VI.2018; 2 3, 7 9, apterous, LEE-GE0085
* same data except 10.1.2019; 1 9, apterous, LEE-
GE0086 « same data except Praia da Rancheira Station;
~20.3450°, —043.4983°; 10.IX.2018; 3 4, 1 9, apterous,
LEE-GE0087 « same data except 13.11.2019; 2 9, apter-
ous, LEE-GE0088 « same data except 18.V.2018; 1 3,3 9,
apterous, LEE-GE0089 « same data except 17.VII.2018;
3 3, 2 9, apterous, LEE-GE0090 « same data except
11.1.2019; 2 9, apterous, LEE-GE0091 + same data ex-
cept 12.VI1.2018; 4 4, apterous, LEE-GE0092 « same data
except Véu da Noiva Station; —20.3588°, —043.4888°;
16.111.2018; 7 3, 4 2, apterous, LEE-GE0093 « same data
except 11.V.2018; 1 @, apterous, LEE-GE0094 + same
data except 17.11.2019; 1 9, apterous, LEE-GE0095 -«
same data except 15.11.2019; 1 3, apterous, LEE-GE0096
- same data except 15.11.2019; 3 4, 8 9, apterous, LEE-
GE0097 « same data except 19.11.2019; 1 4, macropter-
ous, LEE-GE0098 « same data except 19.11.2019; 2 4; 2 9,
apterous, LEE-GE0099 « same data except 08.V1.2019; 2
3, 14 9, apterous, LEE-GE0100.

Identification. Rhagovelia sbolos belongs to the an-
gustipes complex of species, based on the pronotum of
the apterous form shorter than the dorsal length of the
eye, with the posterior margin straight or slightly concave
(Polhemus 1997). The apterous females of this species
are readily distinguished by the complex modifications
of the abdomen (Nieser and Polhemus 1999: 62, fig. 13).
The males, in turn, can be identified by the margins of
the acetabula dark; the fore and hind coxae and trochan-
ters yellow to light-brown; the fore trochanter without a
small, anteriorly directed spine; the middle coxa blackish;
and the hind femur with one to three spines (Nieser and
Polhemus 1999). Rhagovelia sbolos was provisionally as-
signed to the bisignata group by Padilla-Gil and Moreira
(2013), because macropterous specimens were unknown
at that time. Here, we found two macropterous males,
which have four closed cells on the forewing (Fig. 21).
Therefore, it is now possible to confirm the placement of
this species in the bisignata group.

Rhagovelia triangula Drake, 1953
Figure 15

New records. BRAZIL - Minas GErAIs « Ouro Preto,
Parque Natural Municipal das Andorinhas, Brejo Sta-

Check List 19 (2)

tion; —20.3655°, —043.4881°; 14.I[X.2018; G.L.V. Macha-
do leg.; 2 3, apterous, LEE-GE0101 + same data except
Folhinha Station; —20.3502°, —043.4900°; 20.XII.2018;
4 3, 1 9, apterous, LEE-GE0102 + same data except
15.VI1.2018; 5 3,7 9, apterous, LEE-GE0103 « same data
except 20.VII.2018; 3 4, apterous, LEE-GE0104 + same
data except 05.X.2018; 2 2, macropterous, LEE-GE0105
¢ same data except 05.X.2018; 4 4, apterous, LEE-
GE0106 « same data except Praia da Rancheira Station;
-20.3450°, —043.4983°; 12.VI1.2018; 1 3, 6 9, apterous,
LEE-GE0107 « same data except 12.VI.2018; 22 3, ap-
terous, LEE-GE0108 + same data except 17.VII.2018;
1 2, macropterous, LEE-GE0109 + same data except
27.1X.2018; 1 3, apterous, LEE-GE0110 « same data ex-
cept 13.11.2019; 3 ¢, 4 9, apterous, LEE-GE0111 « same
data except 13.1V.2019; 1 @, apterous, LEE-GE0112
¢ same data except Véu da Noiva Station; —20.3450°,
—043.4983°; 16.III.2018; 1 @, apterous, LEE-GE0113.

Identification. Rhagovelia triangula belongs to the lu-
cida group of species, which can be separated from the
itatiaiana group by the body uniformly blackish ex-
cept for a small orange spot medially on the pronotum,
in addition to the male antennomere III dilated or at
least thicker than II and IV in some species (Polhemus
1997). Within this group, this species is recognized by
the male antennomere III not distinctly expanded, at
most slightly thicker on apex than antennomere IJ, the
male hind femur with a few short spines on proximal
half that do not form a distinct row; and the abdomen
of the apterous female strongly modified, with the mar-
gins of the laterotergites sinuously folded on the sides of
mediotergites VI-VIII (Fig. 15; Moreira 2012).

Rhagovelia trianguloides Nieser & Melo, 1997
Figure 16-17

New records. BRAZIL —- Minas GERAIS « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Folhi-
nha Station; —20.3502°, —043.4900°; 20.VII.2018; G.L.V.
Machado leg.; 2 3, 2 9, apterous, LEE-GE0114 « same
data except Praia da Rancheira Station; —20.3450°,
—043.4983°; 12.VI.2018; 10 4, apterous, LEE-GE0115.

Identification. Like R. macta, R. trianguloides belongs
to the itatiaiana group of species (Polhemus 1997).
This species can be immediately distinguished from
the former by the male abdominal sternum VII with-
out a median tuft of setae. Additionally, its body length
is 3.30-3.60 mm; the male hind femur has an irregular
row of spines at proximal %; and the abdominal me-
diotergite I of the apterous female is depressed, while
II-IV are elevated (Moreira 2012).

Subfamily Veliinae
Genus Platyvelia Polhemus & Polhemus, 1993

Platyvelia brachialis (Stal, 1860)
Figure 18

New records. BRAZIL - Minas GERAIS « Ouro Pre-
to, Parque Natural Municipal das Andorinhas, Brejo

Machado et al. | Gerromorpha from Parque das Andorinhas

Station; —20.3655°, —043.4881°; 12.XI.2018; G.L.V. Ma-
chado leg.; 1 3, micropterous, LEE-GE0063 « same data
except Jesus Station; —20.3622°, —043.4886°; 15.V1.2018;
1 4, 1 9, micropterous, LEE-GE0064.

Identification. This species belongs to the brachialis
group of species, based on the male abdominal sternum
VI without a median projection; the male abdominal
sternum VII with the posterior margin concave; and
the paramere not sculptured. It can be separated from
similar congeners by the body length 4.50-5.10 mm;
the anterior margin of the pronotum narrower than or
subequal to the head width through the eyes, with the
anterolateral corners not projected; and the angulate
metanotal projections not exposed in micropterous or
apterous specimens (Rodrigues et al. 2021a).

Discussion

Among the species identified, Hydrometra fruhstor-
feri had been recorded from Espirito Santo state, Bra-
zil (Hungerford and Evans 1934), to Misiones province,
Argentina (Bachmann 1977). The record presented here
is the first of this rarely collected species from MG. The
remaining 12 species in our samples are new for Parque
Natural Municipal das Andorinhas and adjacent areas
but had already been collected in MG. Brachymetra al-
binervus is widely distributed from Guatemala (Drake
and Harris 1942) southward to Paraguay (Drake and
Harris 1930), including some of the Windward Islands
of the Caribbean (Uhler 1893, 1894; de Kort-Gommers
and Nieser 1969; Bass 2007, 2010), and Trinidad and
Tobago (Drake and Harris 1942). In this work, we pres-
ent the first record from Ouro Preto Municipality. In
MG, it had been reported from Itacarambi (Monte and
Bichuette 2020), Brumadinho (Vianna and Melo 2003),
and Carmo do Rio Claro (Moreira et al. 2011).

Cylindrostethus palmaris is the most common and
widespread species of the genus in the Neotropical Re-
gion, occurring from Trinidad and Tobago (Drake and
Harris 1934) and eastern Colombia (Aristizabal 2002)
to Argentina (Mazzucconi et al. 2009b). It had been pre-
viously recorded from MG based on specimens from
Januaria (Melo and Nieser 2004), Perdizes, Conceigao
das Alagoas, Delta (Nieser and Melo 1997), Mariana
(Souza et al. 2006), Conselheiro Lafaiete, Carmo do
Rio Claro, and Alfenas (Nieser and Melo 1997), and it
is herein recorded for the first time from Ouro Preto.

Halobatopsis delectus occurs in southeastern Brazil,
in the states of MG and Rio de Janeiro (Moreira and
Campos 2012). This paper presents the first record from
Ouro Preto Municipality. Previously, it had been re-
corded in MG from Belo Horizonte (Drake and Harris
1941), Nova Lima, Ibirité (Nieser and Melo 1997), Bru-
madinho (Goulart et al. 2002), Sacramento, Sao Roque
de Minas (Pelli et al. 2006), and the Serra da Moeda
mountain range (Nieser and Melo 1997).

Halobatopsis platensis is much more widespread
than the previous species, ranging from northeast-
ern Brazil (Rodrigues et al. 2012, 2021b; Moreira et al.

243

2016; Franco et al. 2020, 2021) westward to Peru (Flo-
riano et al. 2017), and southward to Argentina and
Uruguay (Berg 1879; Ruffinelli and Pirdn 1959). It is
herein recorded from Ouro Preto for the first time,
which narrows a gap on the southeastern region of the
state. Previous records from MG were based on spec-
imens collected in Bocaitiva, Trés Marias (Nieser and
Melo 1997), Santana do Riacho (Nieser and Melo 1999),
Perdizes, Tapira (Nieser and Melo 1997), Belo Hori-
zonte (Drake and Harris 1941), Betim, Santa Barba-
ra, Nova Lima (Nieser and Melo 1997), Sao Roque de
Minas (Nieser and Melo 1999), Mariana (Souza et al.
2006), Vicosa (Drake and Harris 1938), and Sao Vicente
de Minas (Nieser and Melo 1997).

Metrobates plaumanni genikos is a subspecies en-
demic to Brazil and heretofore recorded only from
Nova Lima, MG, when described (Nieser 1993). The
present record expands the distribution of the subspe-
cies by about 60 km to the southeast. Like the previous
taxon, Neogerris kontos is endemic to MG and had only
been recorded once in its original description (Nieser
1994). The published record from Mato Grosso state
(Fernandes and Wanzeler 2010) is erroneous, since
the material has been checked and this species was not
present. Here, we expand its distribution by about 215
km to the southeast. Both taxa above are apparently en-
demic to the southeastern edges of the Sao Francisco
river basin.

Platyvelia brachialis is widespread in the Americas,
from Arizona (Snow 1905), eastern (Barber 1914) and
southern (Hungerford 1929) United States, through
Central America (Champion 1898) and the Caribbean
Islands (Uhler 1894), to Argentina (Torres et al. 2008).
In MG, it had been previously reported from Itacaram-
bi (Melo and Nieser 2004), Trés Marias, Perdizes, Con-
ceicao das Alagoas, Delta, Nova Lima (Nieser and Melo
1997), Mariana (Souza et al. 2006), and Ouro Branco
(Nieser and Melo 1997). The records presented here are
the first from Ouro Preto Municipality.

Rhagovelia macta is restricted to southeastern Bra-
zil, in the states of MG and Rio de Janeiro (Moreira et
al. 2012). It was previously known from only two locali-
ties in the former state: Carmo do Rio Claro, southwest-
ern region (Drake and Carvalho 1955), and Carrancas,
southern region (Moreira and Barbosa 2012). This work
presents the first record from the southeastern region
of the state. Rhagovelia robusta is distributed in Brazil
(Polhemus 1997), Paraguay (Gould 1931), and Argen-
tina (Polhemus 1997). This includes MG, where it was
previously recorded from Mariana (Souza et al. 2006),
Vicosa, Visconde do Rio Branco (Polhemus 1997), Car-
mo do Rio Claro (Moreira and Barbosa 2012), Alfen-
as (Nieser and Melo 1997), Pains (Taylor and Ferreira
2012), and Paraguacu (Nieser and Melo 1997). The re-
cords above are the first from Ouro Preto Municipality.

Rhagovelia sbolos occurs only in MG, with previous
records from Nova Lima (Nieser and Polhemus 1999)
and Mariana (Souza et al. 2006). The several records
above are the first from Ouro Preto Municipality, and

244

show that the species is quite common in the south-
eastern region of the state. Rhagovelia triangula is en-
demic from the four states of southeastern Brazil (MG,
Espirito Santo, Rio de Janeiro, and Sao Paulo) (Drake
1953; Nieser and Melo 1997; Moreira and Ribeiro 2009;
Moreira et al. 2010). The records above are the first from
Ouro Preto Municipality. Rhagovelia trianguloides also
occurs in southeastern Brazil, but not in Sao Paulo state
(Cordeiro and Moreira 2015). In MG, it was previous-
ly recorded from Sete Lagoas, Nova Lima (Nieser and
Melo 1997), Brumadinho (Vianna and Melo 2003),
Itabirito (Nieser and Melo 1997), Araponga (Cordeiro
and Moreira 2015), Carrancas, Juiz de Fora (Moreira
and Barbosa 2012), and the Serra da Moeda mountain
range (Nieser and Melo 1997). This new record helps to
fill a gap in the distribution of the species in the south-
eastern region of the state.

Acknowledgements

Financial support for field trips was provided by the
Federal University of Ouro Preto and by the authors
(MAAC and GLVM). This study was financed in part
by the Coordenagao de Aperfeigoamento de Pessoal
de Nivel Superior - Brasil (CAPES) - Finance Code
001. FFFM benefited from grants provided by Fun-
dacgao Carlos Chagas Filho de Amparo a Pesquisa do
Estado do Rio de Janeiro (#E-26/201.362/2021, #E-
26/203.250/2021) and Conselho Nacional de Desen-
volvimento Cientifico e Tecnolégico (#301942/2019-6).
This study was carried out as partial fulfillment of the
requirements for the MSc degree of GLVM at Universi-
dade Federal de Ouro Preto.

Author Contributions

Conceptualization: GLVM. Data curation: FFFM.
Formal analysis: OMM, GLVM. Funding acquisition:
FFFM, MAAC. Investigation: OMM, GLVM. Method-
ology: GLVM, MAAC. Project administration: MAAC.
Resources: GLVM. Supervision: MAAC, FFFM. Vali-
dation: FFFM. Visualization: OMM, GLVM. Writing -
original draft: GLVM, OMM. Writing - review and
editing: MAAC, FFFM.

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