232 DESCRIPTIONS OP NEW SPECIES. 



LOPHOPffiUM Bates. 



559. L.. volitans. Fuscum dense pubescens, pilis volatilibus elon- 

 gates villosuin, prothorace spina laterali acuta ; elytris lateribus subito 

 defiexis, bicarinatis, carina exteriore ad medium postice abbreviata, 

 fusco maculatis, macula elougata selliformi scutelloque pallidioribus. 

 Long. 5 — 8 mm. 



Cape San Lucas ; Mr. Xantus. This species seems to agree 

 more nearly with the genus to which I have referred it than with 

 any other of which I can find description. I should refer it to 

 Pogonocherus, since the front coxal cavities are angulated exter- 

 nally nearly as much as in that genus, but the scape of the an- 

 tenna; is much longer and more slender, as in Leptostylus, and 

 extends to the lateral spine of the prothorax. The antennae are 

 about one-fourth longer than the body, and clothed on all sides 

 with long hairs, the 3d and 4th joints are nearly equal, the 5th 

 and following diminish rapidly in length. The presternum is 

 rather narrow between the coxae, the mesosternum uot wide, trun- 

 cate and subemarginate behind, the middle coxal cavities angu- 

 lated externally, though not open. 



The body is clothed with dense pale brown pubescence, the 

 antennae are annulated and punctured with darker, the disk of 

 the prothorax is mottled with darker, and the lateral spines are 

 acute ; the base, sides, and tip of elytra are dark, with still darker 

 spots, leaving an elongate common spot of pale gray, emarginate 

 in front and at the sides, extending from the humeri for two- 

 thirds the length, limited for one-half its length by a well-defined 

 carina, extending from the humerus, and becoming obsolete near 

 the tip, which is rounded ; outside of this carina is a shorter one, 

 also proceeding from the humerus, and abbreviated at the middle. 

 The body beneath is clothed with pale-brown pubescence, and 

 the groove and tubercle of the middle tibia? are feeble. The fly- 

 ing hairs are very long and numerous. 



LEPTOSTYLUS Lec. 

 The species may be arranged as follows : — 



A. Elytra more broadly and regularly rounded at tip ; lateral tubercles of 

 protborax not prominent, broadly rounded. Palmeki n. sp. 



B. Elytra more obliquely narrowed bebind, obliquely subtruncate, or 



separately rounded ; 

 Elytra very rough with asperities. aculifer Sat/. 



