4 
Psyche 
[March 
Pronotum as m the other species of the genus, nearly as 
long as wide (1.3 by 1.4 mm.), with base (0.7 mm.) 
narrower than apex (0.8 mm.) ; latter with a strong, entire 
margin; base impunctate, with sides strongly oblique, so 
that the basal angles are obtuse; lateral margins very nar- 
row; disc strongly convex, with median line deeply im- 
pressed from anterior margin nearly to base. Elytra sub- 
rectangular (3 by 2.2 mm.) ; shoulders widely rounded; 
striae deep, wide, and strongly punctate ; interstices convex ; 
striae 4-9 not reaching base of elytra. Underside impunc- 
tate; metepisterna elongate, strongly grooved inwardly; 
anal segment of S with one setiferous puncture on each 
side. 
Holotype 2 from Rio Frio (S. of Santa Marta), Prov. of 
Magdalena, Colombia (Museum of Comparative Zoology, 
Type No. 28, 436) ; and allotype $ from Sevilla (near Rio 
Frio), August 28 (in my collection). Both specimens col- 
lected by P. J. Darlington Jr. 
This new species is near gracilis Bts. but is less narrow, 
with apex of elytra darker, and with base of prothorax 
wholly impunctate. 
Loxandrus minimus, n. sp. 
Head and pronotum brown, more or less infuscate; elytra 
blackish brown with humeral margins, suture, and lateral 
margins ferrugineous ; epistoma, legs, palpi, and first three 
antennal segments ferrugineous, the other segments darker. 
Length 4.2 mm.; width 1.8 mm. Head normal; eyes mod- 
erately convex; frontal grooves short and wide; antennae 
rather long. Prothorax transverse (1 by 1.4 mm.), slightly 
emarginate anteriorly, with an anterior submarginal line 
not interrupted at middle ; sides moderately rounded, slight- 
ly subsinuate before base; anterior angles rounded, not or 
very little prominent; anterior margin a little narrower 
(0.95 mm.) than base (1.2 mm.) ; hind angles square, with 
their apices sharp and dentate; basal impressions rather 
deep, moderately elongate ; spaces between them and lateral 
margins nearly flat; lateral margins rather narrow, each 
with the two usual punctures; base a little depressed, not 
