AITIIRIS. 



201 



depressed ; metanotuni with no areae, its lateral carina) stout 

 and obliquely inflexed; spii'acles large and linear. Scutellum 

 deplanate aud stoutly carinate laterally to beyond its centre ; 

 postsciitelluni basally bifoveolate. Abdomen smooth and dilated 

 throughout, shining ; first as long as the two following segments, 

 laterally carinate above to the spiracles and below to its apex, 

 gradually dilated from centre, with spiracles small, circular and 

 slightly beyond centre ; gastrocoeli obsolete ; second to fourth 

 segments of equal length. Legs stout, witli the femora incrassate; 

 hind legs with apical tarsal joint as long as the three preceding, 

 their tibia? bicalcarate ; cak-aria short and stout ; front tarsi witla 

 the first joint basally excised and as long as the apical, the inter- 

 mediate stout, with calcaria reaching centre of metatarsus. 

 AV^ings with no areolet, first abscissa of the radial uervure straight 

 and oblique, the second basally reflexed ; recurrent nervure curved 

 and nearly continuous with the transverse cubital ; lower basal 

 emitted from the median nervure beyond the upper basal. 



liange. Assam. 



This genus is said by its author to be closely related to Exochus, 

 " but is abundantly distinct from anything described " ; as a matter 

 of fact, it appears to differ from Colpoirochia in little but its 

 shorter autennse. 



206. Aithris cornutus, Cam. (emend.). 



Aithris coenutus, Cameron,* Manch. Mem. 1900, p. 107 (5, as J). 



2 • A stout black species, with the antennje rufescent, and the 

 legs and abdomen partly flavous. Head black, with the base of 



Fig. 74. — Aithris cornulus, Cain. 



the mandibles broadly and the c]y|)eus apically testaceous, and 

 the palpi flavous; face deeply and strongly punctate ; frons and 



\J'2 



