6V P. CAMERON. 1211 



in C. g7-aviinis,hut reticulated: tliemesopleural furrow is narrower, 

 and more clearly defined; C. graminis has no furrow on the 

 centre of the mesonotuni. Its abdomen is longer, compared with 

 the thorax; and the Hagellum of the antennae has a more dis- 

 tinctly metallic tinge. 



ELACHERTIN.^. 



Elachertini. 



Cluthaira, gen.nov. 



Eyes large, pilose, malar space one-fourth their length. Pro- 

 notum moderately large, roundly narrowed from the apex to the 

 base. Parapsidal furrows more distinct on the apical half than 

 on the basal. Scutellum broad at the base, of equal width with- 

 out the dorsal grooves, lai'ge. Metanotum not much sloped, semi 

 circular; bounded laterally by a furrow, its centre with a narrower 

 furrow. Abdomen with a distinct petiole, about twice longer 

 than wide, sloping ilownwards; second segment nearly as large as 

 all the others united; apical segments forming a triangle, being 

 gradually narrowed from the second to the apex. The long spur 

 of the middle tibiae is two-thirds, the hinder one-half the length 

 of the metatarsus. Marginal nervure very long, more than twice 

 the length of the submai'ginal; postmarginal short, stigmal short 

 and thickened towards the apex. The submarginal vein is faint 

 on the apical half, and is united to the marginal above its base, 

 the two forming, with the projection of the latter, a sharp angle. 

 The head is narrowed below in front, forming a triangle. Ocelli 

 in an equilateral triangle. Head wider than the thorax. Temples 

 short, occiput broadly rounded, incised. The abdomen is turned 

 up in all the specimens examined, pretty much as in the ant-genus, 

 Creviatog aster. The mesonotuni is wider than long; there is an 

 oblique furrow on either side of the middle at the apex. The last 

 antennal joint ma}' be composed of three; it forms a longish, 

 conical mass. Body and legs metallic. 



Belongs, or at any rate comes closest to Elachertini. In 

 Ashmead's System (Mem. Carn. Mus., i., 354) it comes near 

 Elachertiis. Characteristic are the pilose, large eyes. 



