926 HEMIPTERA-HETEROPTERA. 
very protean character. The two Costa-Rican specimens represent the type (which is 
figured) and the var. a; and the specimen sent home from Bugaba by Mr. Champion 
is described as var. 5. 
STENOMACRA. 
Stenomacra, Stal, En. Hem. i. pp. 90, 97 (1870). 
This genus is closely allied to the preceding, ‘but differs. in not having the head 
excavated between the eyes. 
Stenomacra appears to be quite confined to the Neotropical Region. 
1. Stenomacra marginella, (Tab. XX. fig. 23, var.) 
Largus marginellus, H.-S. Wanz. Ins. ix. p. 182. 7, fig. 9827. 
Theraneis marginella, Stal, Stett. ent. Zeit. xxiii. p. 315. 2267. 
Stenomacra marginella, Stal, En. Hem. i. p. 98. 3°. 
Hab. Mexico 123 (Bilimek, Mus. Vind. Cws.; Mus. Berol.), Jalapa (Hoge), Milpas 
(Forrer); Guaremaua, Capetillo, San Gerénimo (Champion); Nicaracua, Chontales 
(Janson); Panama (Boucard), Volcan de Chiriqui, 2000 to 3000 feet (Champion).— 
CoLomBIA, Bogota >, Antioquia?; Brazi }. 
This species is of a variable character. In some specimens almost the apical half of 
the scutellum is luteous, whilst the femora are either wholly luteous, as in Herrich- 
Schaffer’s figure, or have their extreme apices concolorous with the tibie; and some- 
times the apical halves of the posterior femora are also fuscous, as in the variety here 
figured, which is from Guatemala, similarly marked specimens from Mexico being 
contained in the Vienna and Berlin Museums. ‘These varieties do not constitute 
local races. 
2. Stenomacra cliens. (Tab. XX. fig. 22.) 
Theraneis cliens, Stal, Stett. ent. Zeit. xxiii. p. 815. 227°. 
Stenomacra cliens, Stal, En. Hem. i. p. 98. 4°. 
Hab. Mexico ! 2, 
_ A typical specimen in the Stockholm Museum is here figured. 
ARHAPHE. 
Arhaphe, Herrich-Schiffer, Wanz. Ins. ix. p. 183 (1853) ; Stal, En. Hem. i. p. 90 (1870). 
In Arhaphe the head is subglobose, and convex both above and beneath. 
Two species are recorded, and are both found in Mexico, one of which is also an 
inhabitant of North America. 
