ACBOPYGA. FORMICA. 333 



scape is short, reaching to about the top of the head ; eyes very 

 small, as in Pseudolasius. Thorax short, rounded and" convex 

 above, the pro-meso- and meso-metanotal sutures distinct ; the 

 thorax viewed from the side is widely emarginate at the latter 

 suture ; legs stout, long, cylindrical, the basal joint of the tarsus 

 more than half the length of the tibia. Node of the pedicel flat, 

 transverse, rounded above ; abdomen very long, rapidly narrowing 

 posteriorly, the apex acute. 



$ . Very similar to the , the head proportionately broader, 

 more convex in front, the eyes larger, the clypeus transverse 

 anteriorly. Thorax massive ; pronotum vertical, not forming any 

 portion of the dorsum ; the mesonotum and broad scutellum 

 slightly convex ; metanotum with a rounded slope to apex. Node 

 of the pedicel and the abdomen as in the $> , but the former 

 thicker at base, the latter longer and more massive. Ocelli large 

 and close together, planted in little hollows. "Wings : fore wing 

 with one cubital cell, the radial cell very long. 



381. Acropyga acutiventris, Roger, Berl. ent. Zeit. vi (1862), 



p. 243, $ . 



Plagiolepis flava, Maw, Verh. sool.-bot. Ges. Wien, xii (1862). 

 "9,$. 



and $ . Deep yellow or reddish yellow all over ; eyes jet- 

 black, in strong contrast with the yellow of the head and body ; 

 head, thorax and abdomen very minutely rugulose, but shining, 



Fig. 99. Acropyf/a acutiventris, g Head. 



covered somewhat thickly with long erect yellow hairs and a 

 dense pale yellow pubescence, very marked on the antennae and 

 legs. For the rest the characters of the genus. 



Length, % 4-5-5 ; $ 6'5 mm. 



Hab. Recorded from Western India (Wroughton), Ceylon 

 (Yerbury), Burma (Fea\ and the Nicobars (teste Mayr). 



Genus FORMICA. 



. Formica, Linn. Syst. Nat. ed. 10 (1758), p. 579, 

 Type, F. rufa, Linn., from Europe. 

 Banff*. Both hemispheres. 



$. Mandibles triangular, with a broad dentate masticatory 

 margin, the apical tooth acute and curved ; clypeus broad and high ; 



