BY FREDERICK A. A. SKUSE. 75 



thicker and shorter than the others ; fourth joint shorter than the 

 preceding three taken together. Antennse 1 3-jointed in both sexes ; 

 first joint of the scapus long, obconical, second short, cyathiform ; 

 in ^ (PI. IV., fig. 5a) the first nine flagellar joints short, subcylin- 

 drical, with a few inconspicuous hairs on the upper side, and a 

 pair of short tolerably stout branches, the latter about | longer 

 than the joints ; tenth joint filiform, four times the length of last, 

 rather thickly and distinctly beset Avith almost erect hairs ; ter- 

 minal joint short, similarly haired to the last; in 9 (PI. iv., 

 fig. 5d) the first eight flagellar joints with a pair of very short 

 branches, about eq\ial in length to the joints ; ninth joint leather 

 longer than eighth, subfusiform ; tenth filiform, gradually growing 

 clavate at apex, twice the length of the last ; terminal joint minute ; 

 the terminal simple joints beset with hairs as in ^. Collare in- 

 conspicuous, compressed. Thorax large, convex, elongate-ovate ; 

 transverse suture distinct ; pleurse with a small, distinct, pointed 

 tubercle before the origin of the wings ; also metathorax with a 

 rather more prominent similar protuberance immediately above 

 the origin of the hal teres ; scutellum small ; metanotum convex. 

 Abdomen twice the length of thorax, wide, thick, somewhat 

 depressed ; first segment short, scarcely half the width of the 

 third ; second truncate-conical ; third and fourth the widest? 

 rather more than half the length of the second ; fifth to seventh 

 short, gradually narrowing in width ; ^ genital organs probably 

 of complicated structure, withdrawn into the anal segment, with 

 no protruding adminiculum ; ^ ovipositor with the upper valves 

 long, sti'aight, very slender and pointed, the lower ones about two- 

 thirds the length of the upper, straight, moderately thick, pointed. 

 ]jegs comparatively short and stout, glabrous to the naked eye, 

 but densely clothed with minute pubescence ; tibiae shorter than 

 the femora, especially the fore and intermediate pairs, the two 

 hind pairs armed with a pair of spurs, the fore pair with only one ; 

 tarsi shorter than the tibiae, the metatarsal joint rather shorter 

 than the remaining four joints taken together ; ungues strong. 

 Wings in ^ rather longer, in 9 rather shorter than the abdomen, 

 broad, with a distinct anal angle. First longitudinal vein ter- 



