102 
Psyche 
[December 
A NEW (EDEMERID BEETLE FROM CUBA 
By P. J. Darlington, Jr. 
Museum of Comparative Zoology 
Cambridge, Mass. 
The following description of a new Cuban Oedemerid is 
published now so that the name will be available for use in 
a forthcoming paper on mimicry of the Lycid genus Thonal- 
mus. Because of the present confusion among genera in 
the family Oedemeridae, I have collected in a separate para- 
graph the characters which have led me to place the new 
species in the genus Copidita. 
Copidita thonalmus n. sp. 
Generic characters : Head not prolonged into a beak ; 
eyes only shallowly emarginate behind insertions of anten- 
nae; both mandibles bifid at apex; last segment maxillary 
palpi triangular but not broadly so ; antennae with segment 
11 more or less divided; middle coxae contiguous; front 
tibia with 2 spurs; penultimate segment of tarsi broadly 
lobed ; tarsal claws angulate below but not toothed ; $ 5th 
ventral segment not emarginate. 
Specific characters : Body moderately stout for Copidita ; 
color bright orange with apical % to % of elytra dark blue 
or greenish blue, the line of demarcation of the colors some- 
what irregular, the orange extending slightly toward apex 
at suture and margins, but not forming sutural and mar- 
ginal stripes; eyes, antennae, palpi, tips of mandibles, and 
legs black, except bases of femora orange; abdomen more 
or less dusky. Surface of head and pronotum slightly 
shining, although closely punctate except on very narrow 
poorly defined median stripe; elytra dull, closely punctate. 
Eyes not very prominent. Prothorax about one-tenth (by 
measurement) wider than long, subcordate, with base about 
