STIROMA ALBOMARGINATA. GO 



StIROMA ALBOMARGINATA, Cui'tlS. Plate XX., figS. 1, 



1 a, 11), 1 c, Id, 1 e. 



Delphax alhomartjiiuttd, Curt. ; Marsh. 



,, imesta, Boh. ; StiiL 



,, coUina, coUuvis, Stal. 



,, adclpha, Flor. 



Ditropis adelpha, Fieb., G. D. t. 8, fig. 18 ; Kirschb. 

 Stiroma adelpha, Fieb., C. E. pt. iv. 91. 



,, alhomarginata, Scott ; Edw. pt. 1, 94. 



Brachelytroiis male. Oval, stout. Head with eyes 

 nearly as wide as the prouotum. Frons with four 

 white keels, the two middle joining at the clypeus, 

 without a fork. Scutellum reddish brown, broadly 

 triangular. Eyes large. Second autennal joint much 

 the largest, finely pilose, and projecting far beyond the 

 eyes ; colour rufous. Elytra pitchy black, with l)road 

 white apical bands or margins. Length al)Out half 

 that of the abdomen ; the principal nervures rufous. 

 Abdomen black. Pygofer yellowish, with a deep notch 

 and triangular horizontal styles spreading outwards. 

 Legs stout, ochreous-yellow ; hind tibia) with one outer 

 spine placed above the middle, followed at the base 

 by the usual laminated spur, and other spines. 



The Brachelytrous female has an ochreous body 

 with yellow tinting. Elytra shorter than in the male. 

 Pygofer without lateral appendages, and bright yellow. 

 Edges of the elytra, and edges of the abdominal rings, 

 white. All the under side is yellow, except the lateral 

 parts of the abdomen and the saws, which are brown. 



The larger size of the female is to be marked. 



Macropterous forms have their elytra twice the length 

 of the abdomen ; they are not often met with. 



Size, 3-5 to 4*0 millimrtres, or 0*14 to 0*16 incli. 



Common in the Romney marshes, Kent, and in 

 moist meadows, in May and June. 



