JAPANESE CIUADID^E. 



being much earlier in summer. Its cry also resembles that of the pre- 

 ceding species though it is not so loud. It frequents trees near 

 houses and is very common in Hokkaido. According to Pryer and 

 Lewis this species is also found in Tokyo, but I have never come across 

 it. I sent this insect to America for identification a few years ago, and 

 it has been identified as Cicada Leechi, Distant, and is said to be found 

 also in China. But according to the description and figures given by 

 Distant it differs very much from that species, especially in the form 

 of the opercula and the abdomen not being ornamented with longitudinal 

 series of whitish pilose spots. 



13. Cicada dar a. 



Cicada clava, Mötsch., Bull. Soc. Nat. Mose. 1880. 



I have not yet seen this insect, and owing to lack of good descrip- 

 tion, it is not known whether it is merely a synonym or quite a new 

 form. The following description is given by Motschulsky. 



" Statura et color cicada orni sed thrace dorso magis nigro. 

 Elongata attenuata opaca, fusco-testaceo, capite thoraceque nigris, 

 subtestaceo pictis, hoc lateribus viridi maculatis, pectore atro, pedibus 

 nigris testaceo annulatis ; , abdominis segmento, penultimo subtns 

 trapezoidale, ultimo attenuato, tympanis transversis femoribus anticis 

 bidentatis. 



" $ , Long. corp. 12 3- 1. ; lat. Exp. alar. 31 1. 

 Hah. Japan." 



li. Cicada vacua. 



Cicada vacua, Olivier, Enc. Meth. 1790. 



This also has not yet been identified. The following description is 

 given by Olivier : — 



" La cigale vuide. 

 " La tête, le corps et les pattes sont noir minime on de couleur 

 fauve ; l'abdomen est vuide et comme transparent, son dernier anneau 



