ACANTHOLEPIS. 315 



laminate node having a tooth or spine on each side above; abdomen 

 broadly oval, rather acutely pointed at apex. 



$ . Large proportionately to the ; head triangular, very broad 

 posteriorly ; clypeus broad and high, convex and strongly vertically 

 carinate. Thorax massive, the mesonotum very large, gibbous in 

 front, overhanging the pronotum, which forms no portion of the 

 dorsum ; scutellum subtriangular, wide at base ; mesonotum and 

 scutellum obscurely longitudinally carinate in the middle. Node 

 of the pedicel pentagonal, the upper border deeply emarginate : 

 abdomen massive. 



3 . Head small in proportion to the thorax, the latter very mas- 

 sive and broad ; mandibles narrow, porrect ; eyes very large, reaching 

 down to the base of the mandibles ; mesonotum large, slightly 

 convex, not carinate as in the $ ; wings lacteous, hyaline, broad 

 and long, the apex reaching considerably beyond the apex of the 

 abdomen. 



Key to the Species, 



a. Scape of antenna) remarkably long, ex- 



tending for more than half its length 



beyond the top of the head A.franenfeldi. p. 010. 



b. Scape of antennae shorter, extending be- 



yond the top of the head by not moiv 

 than one-third of its length. 

 a . The upper lateral angles of the node of the 

 pedicel surmounted by long, fine, acute 

 vertical spines. 

 a 2 . Abdomen purplish brown or black, 



without yellow markings A. opacu, p. 318. 



b 2 . Abdomen dull black, the basal segment 



above and in front brownish yellow. . A. pulchella, p. 318. 

 b'. The upper lateral angles of the node of 

 the pedicel furnished with short thick 

 spines or teeth pointing more or less 

 outwards, or with the upper border of the 

 node simply emarginate. 

 a 2 . Head, thorax and abdomen abundantly 



pilose. 



a 3 . Head punctured, opaque ; head and 

 abdomen reddish brown, thorax and 

 a spot at the base of the abdomen 



yellow l.fayuwni, p. 319. 



//'. Head highly polished and shining, 



head and abdomen black. 

 l . Head without the mandibles about 



as broad as long, thorax black . . A. capeiisis, p. 310. 

 6 4 . Head without tlie mandibles dis- 

 tinctly longer than broad, thorax 



reddish yellow * >nodc*ta, p. 317. 



A a . Head, thorax and abdomen smooth, 

 without hairs except at the apex of 

 the abdomen * */*&*, P- 31 < 



