New Species of the Genus Bassus. 219 



Head — face, mouth and a small portion of cheeks whitish yellow. 

 Anteyince filiform, longer than half the body ; beneath testaceous ; 

 first joint whitish yellow, base of second blackish. Thorax — a line 

 slightly curved before the wings, two united below the first pair, 

 a sutural dot below the second pair, and the collar before the first 

 pair of coxae, pale yellow; sides of breast red, tinged with yellow. 

 Frenum and apex of scutellum of the same colour. Wings — 

 nervures and stigma pitchy ; scales pale ; areolet small, sub- 

 triangular, petiolated. Legs above fulvous yellow, paler beneath ; 

 anterior coxse and all the trochanters pale straw-coloured ; posterior 

 coxse pale red ; hinder tibiae before the middle and tarsi deep 

 black ; one-third from the apex of the former white. Abdomen 

 as broad as the thorax, deep black ; first segment with a deepish 

 central furrow ; first and second segment nearly opaque, the re- 

 mainder smoother. 



This insect is somewliat like 6. pectoratorius, but differs in 

 having no impressed lines on the abdomen, which is also much 

 smoother. 



Bassus thoracicus. 



Pedibus sub-castaneis, tarsis posticis et apice tibiarum nigris ; 

 pectore et lateribus metathoracis semiustulato-rufis ; picturis 

 thoracis, marginibus scutelli et lineis duabus sub scutello 

 pallidis ; ore et linea media faciei flavis. 



Statura et proportio B. picti, Grav., (areold simile). 



Long. 2^ lin. 



Head — palpi, mandibles and a central facial line pale. Thorax — 

 a line before, a dot, also a line below the wings, pale ; below the 

 wings, and a spot on the sides of metathorax, burnt-reddish 

 colour ; the breast with a central obscure patch, two pale lines 

 below the scutellum. Scutellum itself black, the outer margins 

 with two angular pale dots. Legs pale chestnut-red ; hinder 

 tibiae cloudy-white; the apex and tarsi black. Wings — areolet 

 oblong, outwardly a little bent ; stigma and base pale, costa 

 and nervures darker. Abdomen opaque ; 2nd segment slightly 

 aciculated at the base ; 6th segment beneath protruding. 



Bassus Jlavus $ . 



Mas. — Corpore subtus toto flavo ; ocnlis, occipite et tarsis 

 posticis nigris ; scutello magno flavo ; segmentis abdominis 

 glauci-marginatis ; segmento 1° thorace angustiore, lateribus 

 rectis ; areola parva petiolata. 



Long. 21 lin. 



