58 fiRITISfl CICADA. 



low semicircular notch, a small black pointed anal 

 process, and two sickle-shaped styles. 



My figure is from a specimen kindly lent by Mr. 

 Douglas, and taken at the roots of rushes in Folke- 

 stone Warren. 



Size, 2-00 millimetres, or 0*08 inch. 



The Brachypterous female is larger than the male, 

 and it has very similar colouring and markings, though 

 less pronounced. The notch of the pygofer is narrower, 

 and when viewed from above the anal tube and style 

 are more obvious {vide figs. 5h and 5 c). As this 

 example, lent by Mr. Douglas, was gummed on a card, 

 no examination was possible as to the form of the 

 lateral valves and the saw-case. 



The Brachypterous female has not been circumstan- 

 tially drawn or noted before. 



LiBURNiA MESOMELA, Boh. Plate XVII., figs. 1, la, 

 and Plate XVIIL, fig. 3. 



Delphax mesomelas, Boh.; Flor; Kirschb. 

 Delphaciniis mesomelas, Fieb., G. D. t. 8, fig. 12, C. E. 



pt. iii. 25 ; Sahl. 

 Lihuniia mesomela, Scott; Edw. pt. i. 91. 



Brachelytrous male. Form short and stout. Head, 

 antennae, pronotum, irons and scutellum honey-yellow ; 

 the two latter parts almost spotless. Eyes large and 

 greyish. Elytra short, rounded, yellow, each with a 

 crescentic mark near its apex, producing thus a pale 

 border. Length less than half that of the abdomen. 

 Some specimens have almost white elytra, and perhaps 

 their colour in general is lighter than that shown in my 

 figure — one out of seventeen. Abdomen black, with a 

 large blunt pygofer. Pygofer quadrangular, cleft into 

 two plates, containing black styles. The pygofer is 

 separated from the body-rings by one or two white 

 lines or edgings. Legs short and stout, particularly 



