HEMIPTERA-HETEROPTERA. 387 
Hab. Panama, Caldera (Champion). 
This species is allied to I. resed@, but apart from other differences has a broader and 
more ovate form. We have received several examples. 
Ischnorhynchus championi (p. 193). 
To the localities given, add :—GuaTEMALA, Quezaltenango, Zapote, Guatemala city, 
Capetillo (Champion). 
2(a). Ischnorhynchus thoracicus, n. sp. (Tab. XXXIV. fig. 12.) 
Pale cinereous; head dark cinereous; pronotum with a transverse fascia across the anterior area, and four 
subquadrate spots across the basal area (of which the central two are largest), dark cinereous. Scutellum 
variable in colour, sometimes piceous with the disk reddish, or wholly piceous with pale spots at the basal 
angles and apex. Clavus and interior area of corium dark cinereous ; two central spots on disk and four 
on apical margin of corium fuscous ; membrane pale hyaline. Legs castaneous, apices of the femora pale 
ochraceous. Antenne ochraceous, basal joint, apices of second and third joints, and fourth joint (excluding 
base) dark castaneous. Pronotum, scutellum, and clavus very coarsely punctate. 
Long. 3 millim. 
Hab. GUATEMALA, Quezaltenango 7500 feet (Champion). 
Three examples. 
IMBRIUS. (To follow the genus Jschnorhynchus, p. 194.) 
Imbrius, Stal, En. Hem, iv. p. 124 (1874). 
A genus to be distinguished from Jschnorhynchus by the shorter corium, the apical 
angles of which do not reach the apex of the abdomen, and by the carinate lateral 
margins of the pronotum. 
One species only has been described, and this appears to be found commonly in our 
fauna. 
1: Imbrius ferruginosus. 
Imbrius ferruginosus, Stal, En. Hem. iv. p. 125, 1’. 
Hab. Guatemaua, Volcan de Agua (Champion); Panama, Volcan de Chiriqui 4000 
to 6000 feet (Champion).—CoLomBIA, Bogota 4. 
In some varieties of this species the corium is without the black discal fascia, and 
the apex is also concolorous. The scutellum is either wholly black, marked with 
black only, or ochraceous. 
We have received numerous examples which appear to agree fairly well with St&l’s 
description. 
MAYANA, gen. nov. (To follow the genus Jmérius.) 
Differs from both Ischnorhynchus and Imbrius by the more elongate body and by the 
pronotum being distinctly constricted at centre, the anterior and posterior lobes being 
49* 
