LIMOTETTIX SULPHURELLA. 83 



tips. Sahlberg divides his twenty-three species into 

 two divisions, viz., those having four subapical areas 

 in the elytra, and those having five such areas. 



Species are common in the north of Em-ope, and 

 some kinds are very liardy. They show much activity 

 even during the winter months, some affecting the 

 sea-shores and crouching at the roots of gTasses which 

 grow on the summits of high and windy chalk cliffs, 

 even at the very edges of deep snow-drifts. 



LiMOTETTix SULPHURELLA, Zett. Plate LVIII., 

 figs. 1 to Id. 



Cicadula sidphnrella, Zett. 



Cicada virescens, Fall. 



Jassus virescens,FloT; Marsh.; Kirschb.; Thoms. 



Thamnotettix virescens, ^cott; Fieb. 



,, sidphurella, Ferrari. 



Limotettix sidphurella, Sahib. ; Edw. pt. ii. p. 74. 



General colour rufous-yellow, or else brimstone- 

 yellow, with a greenish tinge. Vertex obtusely pro- 

 .duced, sometimes with two minute ocellus-like points. 

 Eyes large and brown. Disc of the pronotum greenish. 

 Scutellum yellow, with or without spots. Clypeus 

 rather dilated at the apex ; genge with two small spots. 

 Antennae much longer than half the body. Elytra 

 almost concolorous yellow, long, and narrow in the 

 middle. Limbus obvious, but not large. Apical areas 

 four. Wings ample and hyaline, with the sutural and 

 adjoining nervures brown and very strong. Legs 

 yellow, with rufous setae. Abdomen of the male warm 

 black, with rufous side-edging, and with a broad yellow 

 spot above the pygofer. 



The live insects are more highly coloured than dry 

 and mounted specimens. Nevertheless, in life, indi- 

 viduals vary much both in shade and apparently in the 

 number of the visible ventral rings. 



g2 



