656 Colropterological Notices, VI. 



tate toward hase, the punctures Ijeeoniing gradually very minute und rather 

 dense toward apex. Prosterniini before the coxiie densely and finely i)unctato- 

 scabrous and clothed densely with long tine pubescence. Mesosternal process 

 very narrow, not extending to the apices of the coxa;, and separated from the 

 short, obtusely cuspiform process of the metasternum by an appreciable in- 

 terval. Mesosternal epimeron with a posterior fringe of long dense hairs as in 

 Sapintus. Legs rather long, very slender. Length 3.0 mm. ; width 1.05 mm. 



Virginia (Fort Monroe). 



This is one of the most conspicuous and interesting anthicides 

 of our fauna. I owe two specimens to the kindness of Messrs. 

 Hubbard and Schwarz. 



LAPPrS n. gen. 



The species composing this genus have heretofore been re- 

 garded as a simple section of Anthicus, but the structure of the 

 mesosternum and prothorax, as well as their peculiar general habi- 

 tus, demands a separation of them from that unwieldy complex. 

 They are ver}^ numerous in the United States, especially in the 

 arid southwestern country, as shown by the results of recent 

 skillful collecting in those regions. 



This genus differs from the others more closely allied, in the 

 great development of the fourth joint of the maxillary palpi, and 

 the long tactile setse, which are so conspicuous a feature in Mal- 

 porus, are completely wanting; the punctuation is very fine and 

 dense as a rule, also in striking contrast to that genus. In re- 

 gard to the cedeagus, I have seen no specimen with the apparatus 

 snfficientl}' protruded for examination, and I have not had 

 enough time or duplicate material to make dissections, but it 

 is doubtless somewhat complex in structure. 



It is scarcely possible that Lappus can be identical with the 

 South American Ischyropalpus of LaFerte, for neither Lappus 

 obscurus nor L. sturmi (elegans) seems to have suggested to the 

 author an alliance with Ischyroj^a^iKS jjei'plexus (Mon., p. 142), 

 but in case obscurus and perplexus should prove to be congeneric, 

 there is no reason why the name Isch^-ropalpus should not be re- 

 stricted to either sericans or trigonocephalus (1. c, pp. 143, 146), 

 as the first is probablj^, and the second certainly', generically dif- 

 ferent from perpilexus. 



Our species, so far as known, mav be conveniently separated 

 by the following synoptic table : — 



