2 



M. MATSUMUKA. 



Of about 330 species of the described Cicadidae in the world, fifteen 

 are known to occur in Japan ; but owing to insufficient descriptions I ana 

 very doubtful whether nos. 13 and 14 are not merely synonymic names 

 or altogether different species. Of the sixteen species mentioned above 

 nos. 6, 7, 8, 10, and 15 are confined to the Main Island ; and the genus 

 Grapt osait ria is peculiar to Japan. 



I. Platypleura Ecevipfcri (fig. 1, a, b). 



Teltigonia Kcempferi, Fabricius. Ent. syst. 1794. 



Cicada Kcemferi, Walk. List Horn. 1850. 



Platypleura Kcempferi, Butl. Cist. Ent. 1874. 



Platypleura hydlino-lvrribata, Sigu. Hull. Soc. Ent. Fr. 1881. 



Platypleura fuseanyulis, Butl. Cist. Eut. 1874. 



This is a very common insect in Japan and is known as ni-ni zerdi. 

 Its description given by Mr. L. Distant in his Monograph of Oriental 

 Cicadidas is as follows : — 



" Head, pronotum, and mesonotum dull ochraceous ; head with 

 the following black markings : — a narrow transverse fascia on front, a 

 transverse fascia between eyes, forming a spot at area of ocelli, 

 continued on inner margin of eyes, two small discal spots, and a 

 fasciate spot anteriorly and posteriorly, the oblique furrows and the 

 lateral dilated margins black ; mesonotum with 4 obconical spots on 

 anterior margin (the central ones shortest), a lanceolate discal spot 

 much widened posteriorly and a spot in front of each anterior angle of 

 the basal cruciform elevation, black. Abdomen black, the tympanal 

 coverings and posterior segmental margins dull ochraceous, head 

 beneath, sternum, and legs dull ochraceous; central sulcation and 

 posterior margins to face ; a fascia between eyes and face, some obscure 

 sternal spots, and a spot at base of operculum, black ; abdomen beneath 

 blackish, with the posterior segmental margins ochraceous. Tegmina 

 with about the basal half opaque and creamy ochraceous, costal membrane 

 with two fuscous spots, and the following fuscous fasciae : — one basal, 

 one oblique, passing through centre of radial area and terminating at 



