AKT. 6 NEW BUPKESTID BEETLES FROM COSTA RICA FISHER 13 



vaguely arcuate prehumeral carinae, extending from posterior angles 

 to marginal carinae near middle; surface glabrous except for a few 

 short hairs along lateral margins, coarsely, rather closely, trans- 

 versely rugose at middle, more obliquely rugose at the sides, and 

 sparsely, finely punctate between the rugae. Scutellum strongly 

 transversely carinate, and the surface finely reticulate. 



Elytra slightly wider than pronotum at base, and about equal in 

 width at base and behind middle; sides nearly parallel for a short 

 distance behind base, broadly arcuately constricted in front of middle, 

 broadly arcuately expanded behind the middle, then obliquely nar- 

 rowed to the tips, which are separately, rather broadly rounded, and 

 strongly serrulate; disk with a rather broad, elongate depression 

 along sutural margins in front of middle, sutural margins strongly 

 elevated posteriorly, and with broad, shallow basal depressions; sur- 

 face finely, densely imbricate-punctate, sparsely clothed with very 

 short inconspicuous hairs, and each elytron ornamented with yellow- 

 ish white pubescent designs as follows: A small spot in basal de- 

 pression, a broad vitta along sutural margin extending from basal 

 fourth to middle, where it extends transversely outward, but not 

 reaching the lateral margin, and with numerous scattered hairs over 

 the apical fourth. 



Abdomen beneath obsoletely reticulate, finely, sparsely punctate, 

 the punctures more or less connected transversely on basal segment by 

 sinuate lines, and sparsely clothed with short recumbent white hairs ; 

 sides narrowly exposed above; first segment convex and without 

 long hairs at middle ; last segment broadly rounded at apex ; suture 

 between first and second segments not visible; vertical portions of 

 segments not conspicuously pubescent; pygidium without a pro- 

 jecting carina at apex. Prosternum coarsely, densely rugose, some- 

 what scabrous, and sparsely clothed with short recumbent white 

 hairs; prosternal lobe broad, strongly declivous, and densely clothed 

 with long, erect yellow hairs along anterior margin, which is broadh'' 

 subtruncate ; prosternal process broad and concave, the sides parallel 

 to behind the coxal cavities, then abruptly narrowed to the apex, 

 which is obtusely rounded. Tibiae slender, straight, and the anterior 

 and middle pairs armed with a short tooth on inner margin at apex. 

 Posterior tarsi distinctly shorter than tibiae, and the first joint as 

 long as the following two joints united. Tarsal claws cleft near the 

 middle, the inner tooth broad and much shorter than outer one, and 

 not turned inward (claws on middle and posterior feet missing). 



Length, 5.25 mm, ; width, 1.2 mm. 



Type locality. — Hamburg farm, Costa Rica. 



Type.— C^t. No. 41609, U.S.N.M. 



Described from a single male collected at light at the type locality, 

 November 15, 1923, by Ferd. Nevermann. 



