1 86 
Psyche 
[September 
aedeagus unique (fig. 5) among the American species (male of 
crassulus unknown to me), the broadened tip suggesting some of the 
Old World species. 
Holotype male : Body form irregularly elongate oval, the sides of 
the elytra when viewed from above less strongly arched than in most 
species and thus giving the appearance of being parallel-sided in the 
middle portion, gently converging posteriorly until the sides curve 
sharply in and then recurve to form the acuminate tip ; in profile, body 
arched dorsally but somewhat flattened on pronotum ; ventral profile 
less arched than usual, almost flat. Total length, 1.98 mm; greatest 
width, 1.29 mm; width at base of pronotum, 1.20 mm; width at apex 
of pronotum, 0.82 mm; length of pronotum at midline, 0.43 mm; 
length from base of prosternal process to apex of coxal lamina, 0.86 
mm; width between eyes, 0.52 mm. Head distinctly microreticulate, 
the meshes impressed so that surface is only feebly shiny; meshes finer 
on clypeus than on front and vertex; punctation fine, sparse, and ir- 
regularly distributed ; clypeus with distinct margin, the margin irregu- 
lar and somewhat thickened at middle but not noticeably truncate and 
not sharply raised in middle (not as described for c? of crassulus , 
Zimmermann 1921 : 191) ; antennal tubercles, feeble clypeal tubercles, 
and punctate clypeo-frontal grooves much as in pustulatus and other 
species, but clypeal tubercles somewhat more distinct; usual rows of 
punctures near eyes difficult to see because of the impressed micro- 
sculpture; arms of tentorium (?) vaguely visible through the thin 
integument running from antennal bases to converge on the front. 
Pronotum with impressed microreticulations much as on vertex of 
head ; usual transverse anterior row of punctures and discal punctures 
coarser than punctures on head, the latter somewhat irregularly dis- 
tributed but denser than on head ; sides distinctly margined, the mar- 
gins nearly straight with anterior angle acute; angle of pronotal 
margin with elytra when viewed from the side very obtuse. Elytra with 
impressed microreticulation as on head and pronotum but the meshes 
coarser and more regularly hexagonal ; punctation coarse, deep, rather 
regularly distributed ; punctures coarser than on pronotum, separated 
by from two to four times the diameter of a single puncture; inter- 
mediate series of punctures indistinguishable from others; elytral 
margins distinct, curved in profile, not visible from directly above; no 
distinct sulci on sides of elytra; tip moderately acute, somewhat 
deflexed. Venter: Prosternal process broadly triangular, the tip 
cephalad forming a minute ventral hook; disk of process microreticu- 
late, the lateral (hind) angles irregularly minutely tuberculate; lateral 
