TyPHLOCYBA ROS^. 141 



Typhlocyba -rosm, Linn, Plate LXXII., figs. 5 to 5 cL 



Cicada rosce, Linn. 



Cicadula rosce, Zett. 



Typhlocyba pteridis, Dahlb. 



T. rosce, Flor ; Kirschb. ; Sahib. ; Ferrari ; Edw. 



pt. ii. p. 101. 

 T. lactea, Dongl. 

 Eupteryx rosce, Marsh. 

 Anomia rosce, Leth. 



Shape narrow. Colour pale primrose-yellow. Pro- 

 notum and scutelliim a shade darker. The former 

 sometimes shows some obscure vertical bands. Elytron 

 whitish hyaline, with a pinkish hue in some varieties. 

 Clavus a little darker. Wings iridescent. Legs all 

 yellow, and finely ciliated. 



In some seasons this species is exceedingly common 

 on rose-bushes, out of which small clouds may rise on 

 agitating the branches. These insects take short flights, 

 but eventually they return to their shelter. The paren- 

 chyma of the leaves is injured and made yellow by the 

 punctures of their rostra ; but I have noted that the 

 upper, and not the lower, surfaces are chiefly attacked. 



The males are smaller than the females, and they 

 are less numerous. Out of sixteen insects which I 

 examined, I counted only five males amongst them. 



Sahlberg notes the occurrence of this insect on fir- 

 trees, both Pinus sylvestris and P. ahies. 



My dissections for the penis agree closely with those 

 of Mr. Edwards, who figures this organ with four leaves 

 (see Ent. Mo. Mag. vol. xvii. p. 224, fig. h). The feet 

 can scarcely be considered as provided with true claws. 

 The tarsi end in organs more like papillae or pulvilli. 



Length of body with wings, 0*15 inch, 3-66 milli- 

 metres. 



