466 APiD^. 



Var. A broad medial longitudinal stripe having a depressed, 

 grooved appearance, on the mesonotum, the intermediate and 

 posterior femora at base, and the apical margins of abdominal 

 segments 1-3 black. 



d similar ; slightly smaller and altogether darker. 

 Ilab. AVestern India ; Ceylon ; Barrackpore, Bengal ; 

 Tenasserim, $. Length 7-8; exp. 16 mm. d . Length 6; 

 exp. 14 mm. 



Genus SYSTROPHA. 

 Systropha, King, Blig. Mag. Ins. v, p. 146 (1805). 

 Type, S. cwvicornis, Scop. 



Range. Europe ; Asia Minor ; Egypt ; Burma ; Tenasserim, 

 Head not so broad as the thorax, front broad ; the eyes small, 

 their inner orbits parallel ; ocelli placed in a curve on the anterior 

 verge of the vertex ; antennae filiform, the flagellura of the female 



slightl)'' thickened, the apical three 



joints in the male curved and 



forming an equilateral triangle ; 



labial palpi 4-iointed ; maxillary palpi 



6-jointed. Thorax orbicular, short ; 



median segment rounded posteriorly; 



legs stout, the posterior tibiae in males 



incrassate: wings broad, ample; fore 



A^-ing with, the radial cell broad at base, 



Fig. 152. subacute at apex, which is approxi- 



Systrcyphadifformis,S. f. mate to the costal margin; three 



cubital cells, the 1st cell the largest, 



the 2nd narrowed and angidar at base, the 3rd strongly narrowed 



towards the radial cell. Abdomen large and comparatively broad, 



the 2nd and 3rd segments produced laterally, almost tuherculate : 



the 2nd ventral segment with a prominent wedge-shaped tubei'cle 



beneath. 



IS'othing has been recorded of the habits of the only Indian species 

 known. I found the males frequenting the flowers of what looked 

 like a species of spurge in the beds of dry streams in Tenasserim. 

 I never came across the female, 



822. Systropha dififormis, Smith, New Sp. Hym. B. M. p. 60, S ; I>nll' 

 Torr. Cat. x, p. 192. 



S . Head, thorax, and abdomen pubescent, and finely but some- 

 what sparsely punctured ; clypeus transverse, much broader than 

 high, rounded anteriorly, and cihated with soft hairs ; the front 

 from the anterior ocellus to the base of the clypeus raised into a 

 broad but not very prominent vertical ridge ; median segment 

 with a sublunate depressed space at base ; abdomen with a marked 

 subapical constriction transversely across the middle of each of 

 the basal three segments, the sides of the 2nd prominently pro- 

 duced, of the 3rd segment more slightly, nearly forming lateral 

 tubercles; the 2nd ventral segment with a remarkable wedge- 



