] ()8 Coleopterological Notices, III. 



A\I>ROCIIIRLS Lee. 



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

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

 is (juile closely allied to Cistela, ))ut siillicieMtly well distinguished by 

 the great inequality of the numdibular lobes, long filiform antennte, 

 and greater posterior prolongation of the acute thoracic angles, the 

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



The legs and antenntxi 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 Ilymenorus, that of the labial exceedingly robust and with 

 on(> of its faces deeply concave. The male sexual characters are 

 almost i)erfectly 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 

 ])()ssibility of a third. They may be recognized by the following 

 characters : — 



Deep l)la(k ; femora rufous, the tibi;e and tarsi i>iceous feinoralis 



Grayisli-blauk ; legs pale liiteo-testaceous throughout ery tlll'opus 



A. feilioralis Oliv. — Eut. Ill, 179,'), 54, p. 12. — Oblong-oval, strongly 

 conv(^\, eutiits body and antenna? l)lack, the femora bright red, the tibi;e and 

 taisi brownish ; lustre dull, the pul)es(;enue 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, se])arated by one-half more than their 

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

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

 long as the fourth. Protiiorax 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 ai)ex, broadly, 

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

 obsolete. Jili/tra 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 iu;arly straight ; disk finely but rather strongly striate, the 

 strife 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 tibi.e, 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 



