32 BRITISH CICADA. 



beyond the eyes. Elytra long, with a brown apical 

 streak. Border of the pronotum sinuous. Legs pale. 

 Abdomen dark brown, with light edges. Front tibiae 

 with narrow brown streak. 



Rare. Size, from 4*0 to 5*0 millimetres, or 0*15 

 to 0-19 inches. 



My figures are drawn from Mr. Douglas' collection. 



LiBURNIA VITTIPENNIS, Sahib., 



Plate X., figs. 1, 3, and 9. 



Delphax vittipennis, Sahib. 



,, guttiferus, Kirschb. 

 Stenocarenus guttuliferus, Sahib. 

 Liburnia guttula, Doug. 

 Kelisia vittipennis, Fieb., C. E. pt. iii., 23. 

 Lihurnia vittipennis, Edw. pt. i. 63. 



Head and pronotum yellowish white. Eyes grey. 

 Upper part of pronotum marked with variable vertical 

 streaks; lower half with two broad black triangular 

 patches, more or less obscuring the same. Abdomen 

 fusiform, with the somites or rings edged with black. 

 Pygofer black, with a remarkable dilated anal-process, 

 which protrudes beyond the last segment. Elytra 

 iridescent, with a dark apical blotch, and a brown 

 costa. Styles laminar and twisted (see fig. 9, PI. IX.). 



The brachypterous insect is less common than the 

 fully-winged form. It is rather like L. guttula, but it 

 may be distinguished from it by its superior size. 



Size, from 3*0 to 4*0 millimetres, or 0*12 to 0*16 

 inches. 



Liburnia longipennis. Curt. Plate X., figs. 4, 5. 



Delphax longipennis, Curt., see pi. 657, Brit. Ent. 

 Stenocranus longipennis, Fieb., C. E. pt. iii., 13. 

 Liburnia longipennis, Scott, Edw., pt. i. 63. 



Vertex pointed, and projecting beyond the eyes. 

 Frons long, with the clypeus dividing it in half. 



