230 HEMIPTERA-HETEROPTERA. 
(Champion); Nicaragua, Chontales (Janson), Corcuera (M‘Neil, Mus. Vind. Ces.); 
Costa Rica, Irazu, Cache (Rogers); Panama °. 
Two varieties of this species are here figured. Fig. 5 represents a specimen received 
from Costa Rica, and is a melanic variety, whilst the Nicaraguan specimen (fig. 10) 
exhibits the paler and more. usual form of the species, and agrees with a typical 
specimen, identified by Stal, in the collection of Dr. Signoret. 
3. Dysdercus flavo-limbatus. (Tab. XXI. fig. 6.) 
Dysdercus flavo-limbatus, Stal, Ofv. Vet.-Ak. Forh. 1861, p. 198. 1'; En. Hem. i. p. 121. 167. 
Hab. Mexico 12 (Bilimek, Mus. Vind. Ces.), Presidio (Forrer); GuateMaLa, Zapote 
(Champion). 
4, Dysdercus obscuratus, n.sp. (Tab. XXI. figg. 8, 9.) 
Dysdercus flavo-limbatus, Stal, var. ?? 
Closely allied to D. flavo-limbatus, St&l, but differing in having the anterior lobe of the pronotum (excluding . 
anterior and lateral margins) black, with a reddish spot on each side; beneath, the ground-colour of the 
sternum and abdomen is black and not red; the femora piceous. 
Long. 10-15 millim. 
Hab. Guatemaa, San Gerénimo, San Juan (Champion); Costa Rica, Cache (Rogers). 
I have felt constrained to regard this as a distinct species, or, at all events, to sepa- 
rate it under a distinct name, in consequence of the constant colour differences, especially 
those of the underside. I have examined nine specimens, which exhibit no variation 
in this respect, whilst in a series of Mexican examples of D. flavo-limbatus, including a 
typical one from the Stockholm Museum, the red and not black markings are equally 
constant. 
Two Costa-Rican specimens are here figured. 
5. Dysdercus incertus, n. sp. (‘Tab. XXI. fig. 7.) 
Head red, with a basal line, the apex, and eyes black ; antenne black, with the extreme base of the first joint red, 
first joint a little longer than second, third short (remainder mutilated). Pronotum with the anterior lobe 
red, the posterior lobe ochraceous; the first with the lateral margins ochraceous, and the anterior collar 
white, bordered inwardly with black ; posterior lobe with a large discal black spot. Scutellum black. Corium 
ochraceous, with a very large and irregularly shaped black spot occupying nearly the apical third; clavus 
with a central longitudinal black streak. Membrane black, the apex pale fuliginous, and the apical margin 
whitish. Head beneath red, body beneath ochraceous, anterior and posterior margins of prosternum, 
posterior margins of meso- and metasternum, acetabula, and posterior segmental margins whitish ; 
anterior margin of prosternum inwardly margined with black; basal disks of abdominal segments 
infuscated. Legs with the femora obscure castaneous, tibie and tarsi fuscous, coxe and trochanters 
ochraceous. Rostrum obscure ochraceous, with the apex black, and just passing posterior coxee. 
Long. 12 millim. 
Hab. Costa Rica, Cache (Rogers). 
D. incertus is allied to D. obscuratus, and is another difficult form of this protean 
