218 Mr. Thomas Desvignes' Descriptions of 



of the hinder pair and tarsi black. Abdomen longer than the head 

 and thorax, deeply punctured ; first segment with two elevated 

 lines meeting before the apex, somewhat shining ; second segment 

 with three longitudinal furrows; all the margins tuberculated, less 

 so towards the apex ; the first segment a little broader at the base 

 than at the apex, sessile, the sides straight. 



Bassus albicinctus. 



Segmentis 2° at 3° marginibus lateralibus albis, tertio medio 

 ferrugineo ; pedibus pallide fulvis, coxis flavis, posticis fere 

 totis nigris, tarsis et apice tibiarum fuscis ; facie, parte 

 genarum, scutello et picturis thoracis flavis. 



Statura fere omnino B. albosignati, Grav. 



Long. 3 lin. 



JJead — face and a portion of cheeks and mouth yellow ; apex of 

 mandibles ferruginous. Antennce beneath piceous, first joint 

 yellow. Thorax— a transverse line below the scutellum, an angular 

 broad line before, another at the base, also one below the wings, 

 a perpendicular one extending to the breast, behind the first pair of 

 coxae, and two large round spots before them, yellow. Scutellum 

 yellow. Whigs — stigma large, and costa black or pitchy ; scales 

 pale. Legs palish fulvous, or rather reddish ; first and second 

 pair of coxse and all the trochanters yellow : hinder coxae black, 

 pale at the apex ; hinder tarsi and apex of tibiae fuscous. Abdo- 

 men depressed, as broad as the thorax, the third segment broadest, 

 first segment with two elevated ridges, the lateral margins also 

 slightly raised ; the margin of the second white, with a tinge of 

 red intermixed, the lateral or apical margins of the third white, 

 the space between them light chestnut ; first to third rugose or 

 deeply punctured, the remainder much less so and shining ; ex- 

 treme margin of the fifth whitish. 



Note. — Allied to B. albosignatus, but very distinct : the descrip- 

 tion is of a male insect. 



Bassus frenator. 

 Pedibus fulvo-rufis, coxis anterioribus flavis, tibiis posticis, plus 

 dimidiatim, et tarsis atris, illis basi albis ; scutello apice, et 

 freno flavis ; metathorace tumidulo piano ; pectore et coxis 

 posticis rufo-flavo variegatis (mas — facie, quoque articulo 1° 

 antennarum flavis). 

 Statura B. pectoratorii, Grav., sed abdomine absque lineis 

 impressis. 

 Lonff, 3 lin. 



