56 BRITlSfi CICADA. 



edges. Styles very short, ciiltriform, bent towards the 

 inside, and marked with a black line. 



Size, 3-50 millimetres, or 0*14 inch. 



My figm-e is from Mr. J. W. Douglas's cabinet. 



In colour this insect resembles Lihurnia pallida, but 

 their differing genitalia show them to be quite distinct 

 species. 



LiBURNiA BREViPENNis, Boh. Plate XVI., figs. 3 to 3 a. 



Delphax hrevipennis, Boh. 



,, liyalinipennis, Stal ; Fieb., G. D. t. 8, fig. 51; 

 Kirschb. 

 Lihurnia hrevipennis, Fieb., C. E. pt. iv. 56. 



,, hyalipennis, Sahl. ; Edw. pt. i. p. 86 and pi. ii. 



Almost concolorous yellow, or dirty white. Pro- 

 notum about equal in length to the scutellum, with 

 faint carinations. Elytra very short, only three-fourths 

 the length of the abdomen ; colourless, hyaline, with 

 delicate nervures, which are complete in number and 

 normally disposed. Abdomen ringed. Pygofer with 

 an arcuate notch. Styles flattish, narrow at their 

 bases, but widened much towards their apices, which 

 are cut square, and show within a blunt and somewhat 

 tooth-like expansion. (See Edwards' ' Synopsis,' pt. i. 

 Plate II., fig. 12.) 



LiBURNiA Fairmairei, Fcrvis. Plate XVI., fig. 4. 



Delphax Fairmairei, Perris. 



neglecta, Flor ; Fieb., G. D. t. 8, fig. 32 ; 

 Marsh. 

 Lihurnia neglecta, Scott ; Fieb., C. E. pt. iv. 7. 

 ,, Fairmairei, Edw. i. 85, pt. ii. fig. 10. 



Brachypterous form pale yellow, oval. Vertex with 

 three keels projecting beyond the eyes. Pronotum and 



