62 BRITISH CICADA. 



LiBURNiA LiNEATA, Pevris. Plate XVII., figs. 4 to ia. 



Delphax lineata, Ferris. 



,, quadravittata, Kirschb. 

 Eurysa vittata, Fieb., G. D. t. 8, fig. 9, and C. E. 



pt. iii. 36. 

 Liburnia lineata, Scott; Eclw. pt. i. 90. 



Brachypterous male small. General colom* oclireous. 

 Frons black. Vertex with two brown spots. Pronotum 

 with four well-marked brown longitudinal stripes. 

 Elytra about half the length of the abdomen, pale 

 ochreous, with faint brownish stains. Abdomen ringed, 

 wdth one dorsal and two lateral brown stripes con- 

 verging to the tail. Pygofer bifid ; seen sideways it 

 has somewhat the profile of a bird's head and neck. 

 Legs yellowish. 



Brachelytrous female has much the same colouring 

 as the male. Frons brown. Abdomen pointed and 

 marked with stripes, less pronounced in the male. 



The Macropterous form of this Delphacid has not 

 come under my observation. 



Size, 2-50 to 4-00 millimetres, or 0-09 to 0*15 inch. 



Liburnia flaviola, Flor. Plate XVIII. , figs. 1 to 1&, 



Delphax flaveola, Flor; Kirschb. ; Fieb., G. J), t. 8, 



fig. 65. 

 Liburnia flaviola, Sahl.; Fieb., C. E. pt. 61 ; Scott; 



Edw. pt. i. 87. 



Macropterous female. Vertex square. General 

 colour fulvous-yellow. Elytra pale yellow and trans- 

 parent. Abdomen brownish yellow, about equal to the 

 elytra in length. Legs yellow, with brown spots and 

 stripes on the hind tibia3 and femora. Two spots 

 generally occur at the base of the vertex. The anal 

 process or cauda projects beyond the pygofer. Fig. 1 is 

 from Mr. Douglas's collection. 



