168 Coleopterological Notices, III. 



ANDROCHIRUS Leo. 



A few large, strongly, longitudinally convex species alone consti- 

 tute this genus, which seems to be exclusively North American. It 

 is quite closely allied to Cistela, but sufficiently well distinguished by 

 the great inequality of the mandibular lobes, long filiform antennae, 

 and greater posterior prolongation of the acute thoracic angles, the 

 latter being much more marked in the female than in the male. 



The legs and antennae are long and slender. The terminal joint 

 of the maxillary palpi is rather slender, triangular, with the very 

 oblique apex almost as long as the outer side, approaching the usual 

 type in Hymenorus, that of the labial exceedingly robust and with 

 one of its faces deeply concave. The male sexual characters are 

 almost perfectly homologous with those of Cistela brevis. 



The species are unusually closely related among themselves, and 

 I have only been able to satisfactorily distinguish two, with the 

 possibility of a third. They may be recognized by the following 

 characters : — 



Deep black ; femora rufous, the tibiae and tarsi piceous femoralis 



Grayish-black; legs pale luteo-testaceous throughout erytliropiIS 



A. femoralis Oliv. — Ent. Ill, 1795, 54, p. 12. — Oblong-oval, strongly 

 convex, entire body and antennae black, the femora bright red, the tibiae and 

 tarsi brownish ; lustre dull, the pubescence excessively short and dense, dark 

 and not in the least conspicuous. Head and prothorax minutely but deeply, 

 extremely densely punctate, the punctures all narrowly separated, the head 

 somewhat flat above ; eyes rather small, separated by one-half more than their 

 own width ; antennae long, slender, filiform, the joints fully three times as 

 long as wide, third more than twice as long as the second and three-fifths as 

 long as the fourth. Prothorax scarcely one-half wider than the median length, 

 the apex just visibly sinuate, rather less than one-half as wide as the base, the 

 latter broadly, strongly bisinuate, the basal angles strongly produced poste- 

 riorly and very acute ; sides evenly convergent from base to apex, broadly, 

 evenly, rather strongly arcuate ; disk not impressed, the basal foveae almost 

 obsolete. Elytra four times as long as the prothorax and equal in width to 

 the latter, sometimes slightly narrower ; gradually, acutely ogival at apex ; 

 sides parallel and nearly straight ; disk finely but rather strongly striate, th< 

 striae finely punctate, the intervals distinctly convex, extremely minutely, 

 densely punctate. Abdomen minutely, densely punctate. Legs very long and 

 slender, the anterior and intermediate tarsi longer than the tibiae, the posterior 

 subequal thereto ; basal joint of the latter equal in length to the remainder. 

 Length 9.0-10.0 mm. ; width (of elytra) 3.3-4.0 mm. £ . 



South Carolina ; Georgia ; Florida. 



The specimens before me are all females, and in that sex the fifth 



