60 BRITISH CICADiE. 



Found amongst dry bents and fine grasses in many 

 places. The form occurs both in the macropterous 

 and in the brachelytrous condition. 



Size, 0*12 inch, or 2*50 milhmetres. 



Deltocephalus distinguendus, Flor. Plate LI., 

 figs. 1 to 1 &, and LII., figs. 3, 3 a. 



Deltocephalus distinguendus, Flor ; Fieb., S. E. D. 

 fig. 21 ; Scott ; Edw. pt. ii. p. 51. 

 „ pseudocellaris, Flor ; Thorns. ; Sahib. 



„ propinquus, Edw. (not of Fieber). 



Male. General colour ochreous-yellow. Vertex 

 pointed and shaped like an equilateral triangle. Pro- 

 notum much shorter than the vertex, and, like it, 

 obscurely clouded with brown stains, or marked by 

 three white stripes. Scutellum small and yellow. 

 Eyes pale brown, and often spotted. Abdomen semi- 

 globose and black ; its apex ending with two con- 

 spicuous plates. Legs rather short and stout, yellow; 

 the hind tibia being furnished with a brown inner 

 stripe and numerous coarse setae. Elytra longer than 

 the abdomen, fuscous-yellow, with the areas towards 

 the apices obtuse, and more or less bordered within 

 by faint brown or fuscous tints. The spaces between 

 these areas, down which the nervures run, whitish. 

 Wings grey. Genital plates large, black, and reflexed. 



The pygofer is complex, and may be thus shortly 

 described. Details appear in Plate LIL, fig. 3. The 

 cedeagus is formed of an oblong deep chamber sur- 

 rounded by a strong marginal wall or ring, above which 

 a short black style protrudes from a space walled in 

 by the prolongation of the strong lateral processes. 

 These processes cross over part of the floor of the 

 chamber. Between them and below the above-men- 

 tioned small style, the blunt rectal cauda is situated. 



The significance of these curious details of the 



