76 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
sparsely and irregularly punctate, the punctures very shallow and 
obsolete; intervals finely and densely reticulate-striolate, the reticu- 
lation becoming more distinct along the sides. Scutellum nearly 
smooth, and broadly triangular. Elytra rather strongly convex, as 
wide as pronotum at base, widest at middle; humeral angles obtusely 
angulated; sides feebly expanding to middle, then strongly, arcuately 
attenuate to the tips, which are conjointly, broadly rounded, the 
lateral margins entire; each elytron with a broad, shallow depression 
at the base, and a narrow one between the humerus and lateral mar- 
ein, extending along the margin from the humeral angle to middle 
and becoming much broader behind the humerus; surface somewhat 
uneven at base, coarsely and irregularly punctate, the punctures 
obsolete and somewhat confused at base, but becoming finer and 
smooth toward apex; intervals finely and obsoletely reticulate- 
striolate. Abdomen beneath finely and densely reticulate-striolate; 
last segment narrowly rounded at apex. Metasternum with a few 
large, widely separated punctures, and the intervals finely and obso- 
letely reticulate-striolate. Prosternum finely and densely reticulate- 
striolate, with a few fine, obsolete punctures on the prosternal process; 
anterior margin truncate. 
Length, 2.25 mm.; width, 1.3 mm. 
Type locality —Trinidad River, Panama. 
Type.—Cat. No. 25123, U.S.N.M. 
Described from a single specimen collected by August Busck May 
4, 1911. 
This species is closely allied to wnicolor Kerremans, but it is shorter, 
more robust and convex, and more broadly attenuate posteriorly. 
LEIOPLEURA PARVULA Waterhcuse. 
Leiopleura parvula WatERHOUSE, Biol. Centr.-Amer. Coleopt., vol. 3, pt. 1, 
1889, p. 161, pl. 9, fig. 7. 
This species was described from David, Panama, and the type is in 
the British Museum. It has not been examined by the writer, and 
the species is placed in the key solely upon the characters given in 
the original description. 
LEIOPLEURA CONVEXA Waterhouse. 
Leiopleura conveca WaterHOUSE, Biol. Centr.-Amer. Coleopt., vol. 3, pt. 1, 
1889, pp. 160-161, pl. 9, fig. 6. 
Described from material collected by Mr. Champion at Volcan de 
Chiriqui, Panama, at an altitude of 2,500 feet. ‘This is a very convex 
species and has not been seen by the writer, but is placed in the key 
on the basis of the original description. 
