14 PROCEEDINGS OF THE NATIONAL MUSEUM. Vou. 62. 
convex, sparsely and obsoletely punctate, the punctures very shallow 
and usually open on the one side, clothed with a few inconspicuous 
recumbent hairs; intervals very finely and obsoletely reticulate; last 
segment rather acutely rounded at apex. Elytral epipleura narrow. 
Metasternum more coarsely punctured than the abdomen, and rather 
deeply, arcuately emarginate in front. Prosternum rather broadly 
emarginate in front; prosternal process rather narrow, a little more 
than two times as wide as the coxal cavities, sides nearly parallel, and 
the apex broadly rounded; prothoracic episternum nearly parallel, 
long, very narrow, and nearly flat. Prothoracic epipleura wide and 
nearly flat, except for a shallow longitudinal depression behind the 
antennal groove; lateral margin nearly rectangular; antennal groove 
deep and extending to the lateral margin near the middle, and 
parallel to the tibial groove. 
Length, 2.56 mm.; width, 1.8 mm. 
Type locality.—Lion Hill, Canal Zone, Panama. 
Type.—Cat. No. 25095, U.S.N.M. 
Described from a unique male collected by August Busck, June 18, 
1907. 
This is a short ovate species allied to cinctus Waterhouse, but can 
be distinguished from that species by being sparsely pubescent, and 
the pubescence on elytra arranged longitudinally. 
PACHYSCHELUS LUNIFER Waterhouse. 
Pachyschelus lunifer Watnruouse, Biol. Centr.-Amer. Coleopt., vol. 3, pt. 1, 
1889, pp. 148-149, pl. 7, figs. 22, 22a. 
This species was described from material collected by Mr.Champion, 
at Volcan de Atitlan, Guatemala, at an altitude of 3,000 feet. The 
type is in the British Museum and has not been examined. The 
species is placed in the key from the characters given in the original 
description. 
PACHYSCHELUS FESTIVUS, new species. 
Male.—Broadly ovate, slightly longer than wide, more strongly 
narrowed behind than in front, shining; head and pronotum bright 
aureous; scutellum and elytra cyaneous, becoming violaceous toward 
the margins; surface sparsely pubescent; beneath piceous. 
Head flat, feebly longitudinally and rather broadly grooved from 
vertex to epistoma; surface shining, with a few large, shallow, distant 
punctures, and very sparsely clothed with obsolete cinereous hairs. 
Pronotum moderately convex, three and one-half times as wide as 
long at middle, much narrower in front than behind, widest at base; 
sides strongly, obliquely arcuate from base to apical angles, which 
are nearly rectangular; anterior margin broadly, arcuately emargi- 
nate; base obliquely truncate to the elytral lobe, where it is rather 
