86 MEMOIRS ON THE COLEOPTERA 



American and West Indian Oclirolitus of Sharp, as indicated by the 

 writer many years ago (Ann. N. Y. Acad., V, p. 142). It differs 

 from Ochrolitus in having the basal joint of the hind tarsi relatively 

 less elongate, in having a short and broadly rounded post-mesocoxal 

 plaque on the metasternum, apparently wholly wanting in Ochro- 

 litus, in having the prosternal process dilated, flattened and circu- 

 larly rounded at tip, the apex bearing a corona of about six long stiff 

 spiniform setae, of which there is no trace in that genus, in the shorter 

 outer three joints of the antennal funicle, these being rather abruptly 

 short and progressively more transverse and, finally, in having 

 only two discal striae on each elytron and not three as in Ochrolitus. 

 The general surface of the elytra has the peculiar sculpture of long 

 transverse scratches seen in Ochrolitus, as well as Litochropus. 



Litochropus Csy. 



The following species resembles scalptus, the type of Litochropus, 

 in all its principal structural features, the most radical difference 

 being the single discal stria on each elytron, scalptus having two 

 such striae: 



Litochropus clavicornis n. sp. Body very much larger than in scalptus, 

 broadly oblong-oval, very obtuse behind, rufo-piceous throughout and 

 without trace of minute ground sculpture above, pale beneath; head 

 rather more than half as wide as the prothorax, very minutely, remotely 

 punctulate, the eyes very moderate; antennae rather stout, the third joint 

 as long as the next two combined, the club large, broad, loose as usual 

 but longer than the funicle; prothorax rather distinctly more than twice 

 as wide as long, the moderately converging sides evenly and distinctly 

 arcuate; basal lobe very feeble, not at all margined; scutellum ogival, 

 nearly twice as wide as long; elytra slightly longer than wide, between 

 two and three times as long as the prothorax, the arcuate sides moder- 

 ately converging from the base, then rather rapidly rounding behind, 

 the apex broadly obtuse, the single subsutural stria rather fine but dis- 

 tinct, obsolete near basal fourth; transverse scratches coarse, very long, 

 joining each other transversely, the punctures of the series extremely 

 fine and feeble, each bearing the usual very small decumbent hair; 

 prosternal process rather narrow, the metasternal moderately wide, 

 rounded anteriorly and with only a very fine apical bead, almost exactly 

 as in Olibrus; hind tarsi long and slender, the basal joint almost as long 

 as the entire remainder, the second about twice as long as the third; claws 

 abruptly bent and with the usual large internal plate-like basal pro- 

 jection. Length 1.9 mm.; width 1.2 mm. Texas (Columbus), Wick- 

 ham. 



The head is somewhat larger than in scalptus, the prothorax less 



