18 BRITISH CICADiE. 



Inch, Millimetres. 



Expanse 0-420 10-56 



Body with wings 0-150 3-83 



Fieber names eighteen European species of Oliarns. 



Genus II.— CIXIUS. 



Antennae short ; second joint nearly globular. Ocelli 

 two. Head, w^ith eyes, narrower than pronotum, which 

 last is short and notched behind. Elytra hyaline. 

 Nervures studded with setigerous granules. 



First joint of hind tarsi elongated. The first and 

 second radial veins of the elytra forked before the 

 extremity, and connected by a transverse vein, near 

 the bifurcation of the radials. Anal tube of the male 

 semi-cylindrical. " La tariere de la femelle longue, en 

 forme de sabre." — (Fieber). 



Cixius NERVosus, Limi. Plate IV., figs. 5 to 9. 



Cicada nervosa. Cicada cunicularia, Linn. 

 Flata nervosa, Germ., Fab., Fall. 

 Cixia nervosa, Burm. 



Cixius nervosus, Schiiff., Zett., Marsh., Kirsch., Scott, 

 Fieb., C. E. pt. ii. 176; Edw. i. 54. 



This is one of our largest and commonest species. 

 Frons black ; clypeus dark on the upper side, and 

 yellow between the keels. Pronotum black, with 

 reddish between the raised keels. Abdomen black, 

 with segmental fuscous edgings. Elytra without any 

 broad transverse band, but usually with a stigmatic 

 streak, and another faint one from the basal half of the 

 costa. Spots on the costa larger than on the other 

 nervures. Spots more than ten, and mostly united 

 into threes and fours. Nervures yellow. Stigma 

 brown. Legs fuscous. 



Male anal tube black ; cylindrical when seen from 

 above, but showing two strong processes from below. 

 The female is well furnished with cottony flocks. 



