100 On Fossil Arthropods in the British Museum. 



FulgoridsB (sens. lat.). 



HoOLEYAj gen. nov. 



Represented by an imperfect teginen, showing the following 

 cliaracters : — Broad, with costal margin straight except at 

 base ; a distinct costal vein ; subcosta united with radius for 

 some distance, separating at a very acute angle^ and giving 

 oti' at least six nearly parallel brandies to costa; media witii 

 all four branches separate ; ?»4 joined by a cross-vein to 

 upper branch of cubitus. 



Hooleya indecisa, sp. n. (Fig. 2.) 



Length of fragment (base to sixth branch of subcosta) 

 8 mm. ; dark fuscous throughout, with dark veins. 



Fig. 2. 



Hooleya indecisa, sp. u. 



Oligocene of Gurnet Bay, Isle of Wight, 1886 (Hooley, 

 1145). 



Mr. F. Muir, the well-known specialist in this group, was 

 good enough to examine my drawing, and suggests that the 

 insect may fall in the Derbidas, perhaps near to Nesokaha, 

 Muir. The genus Nesokaha was based on a species from 

 Ceram, but others occur in the Pliilippines, and there is one 

 in Formosa. I had inter[)reted the insect as a member of 

 the Cixiidse, and Mr. Muir considers tliis possible. In 

 Tillyard's fossil Iriassoci.vius there are similar oblique 

 branches to the costa, but these are considered to come from 

 the first division of the radius, the subcosta being supposedly 

 absent. 



