86 



AN INTRODUCTION TO ENTOMOLOGY 



A similar study was made of the wings of Conocephalus, as an 

 example of the Tettigoniidae, Figure 98 represents the wings of a 



male nymph; 

 and Figure 99 

 the fore wing 

 of an adult. 

 The most 

 striking fea- 

 ture and one 

 characteris- 

 tic of the fam- 

 ily, is that the 

 musical organ 

 occupies an 

 area near the 

 base of the 

 wing which is 

 small com- 

 pared with the area occupied by the musical organs of the Gryllidas. 

 But here, as in the Gryllidse, the file is borne by the basal part of Cua, 



Fig. 97. — Fore wing of an adult male of CEcanthus;f, vein 

 bearing the file; s, scraper; i, t, tympana. 



Fig. 98. — Wings of a male nymph of Conocephalus, (From Comstock and 

 Needhapi). ' ■ 



the tympana are formed between the branches of cubitus, and the 

 ler is formed at the outer end of the anal area. 



