112 Mr. D. Sh^)'s Contributioiis to the 



SOX also the liead is rather less closely but more coarsely 

 puiKiturecl than in the male. 



Ega; eleven individuals. 



Ohs. — The peculiar structure of the ventral plate of the 

 7th segment shows no variation in a series of six $ indi- 

 viduals. 



4. Drachydirus crihricolUs, n. sp. Fulvus, ahdoinlne 

 nigro, ano testaceo ; prothorace omTiium ibrtissimc punc- 

 tato. Long. corp. 4^ lin. 



Mas: abdomine segmcnto sexto ventrali apicc medio 

 obsolete emarginato, segmento 7° subtriangulariter inciso. 



Antenna? yellowish, rather short and stout, much 

 thickened towards the extremity ; joints 2 and 3 about 

 equal, 4th longer than the 5th and 6th, these two short ; 

 the 6th transverse, 7 — 10 strongly transverse ; 11th long, 

 stout and pointed. Head tawii}", coarsely and densely 

 punctured, the punctuation more sparing on the vertex. 

 Thorax not quite so long as broad, distinctly broader in 

 front, and with the sides a little sinuate, its upper surface 

 extremely closely and deeply })unctured; the punctures 

 are numerous and close, and leave a very narrow line at 

 the base, a central line, and a spot near the fi-ont angles, 

 smooth. Elytra considerably longer than the thorax, of 

 a similar colour to it, and the head coarsely and rather 

 closely punctured, with their pubescence rather coarse and 

 distinct. Hind body narrowed towards the apex, black, 

 with the extremity of the 6th segment, and the whole of 

 the 7th, yellow; the 2nd segment is impunctate, segments 

 3 — 6 closely and finely punctured and densely pubescent ; 

 the pubescence on segments 3 — 5 yellow, 7th segment 

 nearly impunctate ; 8th segment with its lateral lobes pale 

 at the base, tawny brown at the extremity. Legs yellow. 



In the male the hind margin of the 6tli segment of the 

 hind body is slightly emarginate, and the 7tli has a I'ather 

 narrow and moderately deep notch in the middle of the 

 hind margin ; in the Icmale the hind margins of the 6th 

 and 7th segments are simple, that of the 7tli being gently 

 rounded; the last joint of the antenna? seems to be shorter 

 in this sex than in the male. 



Ega and St. Paulo ; seven specimens. 



5. Bracliydirus simplex, x\. sp. Fidvus, abdomine nigro, 

 apice antennisqiie testaceis, capite superne viridi-a2neo, 

 vertice fulvo. Long. corp. 5 lin. 



