220 
Genus ^Erenea, Thomson. 
Thomson, Archives Entom. i. p. 298. 
This genus is closely allied to Compsosoma, but differs in 
several points, admitting of clear definition. The antennae are 
destitute of the dense fringe which exists in Compsosoma, and 
are furnished with scattered hairs. The face is broad and plane, 
and the muzzle quadrate and prolonged below the eyes. The 
mesosternum has a conical horizontal projection in front; and 
the prosternum is longitudinally convex or keeled, and sometimes 
vertical on the posterior face. The general form of body and 
the structure of the legs and tarsi are very similar to the same 
features in Compsosoma. 
1. JErenea albilarvata, n. sp. 
JE. breviter ovata, fiilvo-brimnea, fronte fascia lata cinerea albo 
marginata, thorace lateribus castaneo-fuscis, elytris prope apicem 
fascia lata curvata grisea ; auteiince parce breviter setosae arti- 
culo basali clavato, articulis tertio et quarto longitudine aequalibus; 
elytris pedibusque breviter setosis. Long. 4^ lin. 
Head broad, upper part of the forehead with a curved im- 
pressed line on each side besides the central longitudinal line, face 
plane and broad ; colour tawny ; the face crossed by a broad belt 
of milky-white tomentum, margined with lines of denser white, 
and extending up the face of each antenniferous tubercle. An- 
tennae a little longer than the body, sparingly clothed with short 
bristles, tawny brown; basal joint forming an oblong pyriform 
club; third and fourth joints about equal in length. Thorax 
quadrate, convex and tubercular above, and marked with a few 
punctures, tawny; sides dark chestnut-brown. Elytra short, ovate, 
shoulders obtusely rounded but slightly falcate; surface punc- 
tured and beset with short bristles; tawny, basal margin edged 
with dark brown ; a broad curved grey fascia on each at a short 
distance from the apex. Body beneath and legs reddish, clothed 
with greyish-tawny pile. 
Forests of the Tapajos. 
2. JErenea cognata, Pascoe. 
jErenea cognata, Pascoe, Trans. Ent. Soc. n. s. vol. i. p. 25. 
jE. ovata, breviter griseo setosa, purpureo-brunnea, fronte plana, 
griseo tomentosa ; antennis rufescentibus, fere nudis ; thorace 
supra tuberoso et cum occipite fulvo ; scutello fulvo ; elytris bre- 
vibus, convexis, punctatis, humeris falcatis, purpureo-bruiineis, 
marginibus lateralibus fulvis, fasciaque obliqua grisea ; pedibus 
testaceo-mfis, cinereo variegatis ; abdomine piceo-nigro, nitido. 
Long. 6 lin. 
Ega ; Upper Amazons. 
