NEW GENERA OF COLEOPTERA. 509 



margin of the elytra. Should his, therefore, have the indication 

 of a costa upon the space between this and the third, it will be 

 another reason for treating them as different. I have observed 

 in mine, that the concave fringed lobes projecting upwards 

 from the geniculation of the antennae, cover in repose the bald 

 vertex on each side like a scalp ; and when this is the case, as 

 nothing more of those organs is seen than the flagellum, the 

 insect exactly resembles a Platypus. These are probably 

 males : the next described is most likely the female, and per- 

 haps of this species, although it possesses peculiarities which, 

 until it shall be proved to be identical, will justify its separation. 

 With respect to the transverse sulci of the tibise, Mr. Sanders's 

 description would imply that they were all upon the same side of 

 the limbs ; but my description shows how they exist here as 

 well as in the other Platypi. 



Sp. 3. Tess. productus. Shuck. Cylindricus, rnfo-testa- 

 ceus, pilosus, capite elytrorumque apicibus nigris, quorum 

 apicuvi costa marginalis producta et incurva est. (Length 

 8j lines.) 



Shorter and more robust than the preceding ; reddish, testaceous : 

 the head, knees, and extremity of the elytra black ; the whole 

 head and thorax covered with long black hair, vipon the former 

 very thick, and upon the latter loose : the antennae produced 

 beyond the geniculation in merely a short penicillated spine : the 

 thorax sculptured as in the former, with an abbreviated piceous 

 longitudinal line in the centre behind : the sculpture of the elytra 

 the same as in the former, but the eostae considerably more pro- 

 duced beyond the apical truncation, and projecting over it in 

 fornicate laminae ; the marginal even still more produced, and 

 forming a long, incurved, compressed mucro. 

 The comparison of the descriptions will show sufficient dif- 

 ferences to warrant my treating these insects for the present as 

 distinct, although I am strongly inclined to think this the female 

 of the former. 



Fam. — LoNGicoRNEs, ServUlc. 



Tribus 2^'. — Cerambycini, Serville. 



Genus.' — Stephanops, Shuckard. 



Head as long as the thorax, a little constricted behind the eyes, the 

 anterior half produced in front of them into a long snout : labrum 



