12 
Psyche 
[March 
Pachyabaris darlingtoni, n. sp. 
Dark bronze, scarcely shining; underside brown; legs, 
antennae, and palpi ferrugineous brown. Length 8.6 mm. ; 
width 3.3 mm. Head moderately elongate; eyes wide, mod- 
erately convex; frontal impressions very short and deep; 
antennae scarcely exceeding base of prothorax, with seg- 
ments 4-11 pubescent. Prothorax transverse (2.1 by 2.9 
mm.) ; sides strongly and regularly rounded ; anterior angles 
obtuse, prominent; anterior margin distinctly emarginate; 
hind angles very obtuse, rounded at tips (the hind angles 
are not rounded in the paratype) ; anterior width 1.7 mm.; 
basal width 2.3 mm. ; one basal impression each side, deep ; 
spaces between the impressions and the lateral margins 
each with a slight depression reaching lateral margin near 
middle of length ; lateral margins narrow, each with the two 
usual setae; base impunctate, depressed between basal im- 
pressions, straight; disc only a little convex, with median 
line short, moderate. Elytra oblong-ovate (4.7 by 3.3 mm.) ; 
shoulders square; basal margin moderately incurved to- 
wards shoulders; scutellar stria rather long; striae deep, 
impunctate ; interstices slightly convex ; third interstice with 
four deep, distinct foveae, the first at basal % near third 
stria, the others near second stria (the number of foveae 
varies from 3 to 4) ; apical sinuation very strong. Proster- 
num not sulcate, sometimes slightly depressed; prosternal 
process margined; metepisterna not longer than wide, sul- 
cate along anterior and interior sides; abdominal segments 
transversely sulcate, with series of strong punctures in the 
sulci ; anal with one ( $ ) or two ( $ ) setae each side. Hind 
tarsi with only first segment slightly sulcate externally. 
Aedeagus as in Fig. 7. 
Holotype S (Museum of Comparative Zoology, Type No. 
28,433), allotype $ (my collection), and one $ paratype 
(M.C.Z.) all from the northwestern Sierra Nevada de Santa 
Marta, Colombia, 12,000 ft., Feb. 11, 1929 (Darlington), 
taken of course in the paramo zone. 
