10 
Psyche 
[March 
punctures on each side. Hind tibiae normal. Male unknown. 
Holotype 2 (Museum of Comparative Zoology, Type No. 
28,427) from the northwestern Sierra Nevada de Santa 
Carta, Colombia, 12,000 ft., Feb. 11, 1929 (Darlington). 
The type is unique, and is from the paramo zone. 
Sierrobius parvulus, n. sp. 
Upper surface dark bronze ; head and prothorax shining, 
elytra ( 2 ) alutaceous ; antennae, legs, and palpi f errugin- 
eous; underside brown. Length 7.9 mm.; width 2.7 mm. 
Head robust; eyes small and little convex; temples half as 
long as the eyes; frontal impressions deep, parallel, mod- 
erately elongate. Prothorax elongate, subrectangular (2 by 
2.2 mm.), truncate anteriorly; sides moderately rounded 
and narrowed anteriorly, nearly straight and slightly con- 
vergent towards base; anterior angles not or very little 
prominent, rounded; posterior angles square, with their 
apices not rounded; basal impressions slightly impressed, 
spaces between them and lateral margins little convex; 
lateral margins narrow, with one puncture on each side in 
anterior half and the usual puncture at each posterior angle ; 
base not margined at sides ; disc only a little convex ; median 
line nearly reaching base. Elytra oblong-ovate (4.3 by 2.7 
mm.) ; shoulders slightly obtuse, each with a minute tooth; 
scutellar stria very short, without apical pore; striae mod- 
erate; interstices not convex, the third with two punctures 
of which the first is at 1/5 and the other at 3/5 of the length ; 
apical sinuation slight. Underside as in the other species 
of the genus. Hind tibiae simple. Male unknown. 
Holotype 2 (Museum of Comparative Zoology, Type No. 
28,429) from the northwestern Sierra Nevada de Santa 
Marta, Colombia, 8-11,000 ft., Feb. 10-12, 1929 (Darling- 
ton) . The type is unique, and is from the “temperate” for- 
est zone. 
Pachyabaris, n. gen 
So closely allied to Abaris Dej., Abaridius Chaud., and 
Pseudabaris Chaud. that it is not necessary to give a full 
description. The peculiar characters of the new genus are ; 
