JAPANESE CICADTDjE. 



17 



running out from it, pile plambeous. The inner alulet is large, ovate, 

 bounded by a course vein and traversed by numerous long veins. 

 Abdomen long and narrow with the middle of venter striped with a 

 series of black spots. 



" Length to tip of abdomen : g 20 mm. ; £ 22 mm. Spread of 

 wing-covers, 55-57 mm. 



" The female has a much longer and more slender spur at apex of 

 the tergum than in the male. In this species the two ulnar veins are 

 separated at their origin on the angle of the basal areole, and the inner 

 alulet (Schlussfeld) of the wing is broadly rounded and traversed by 

 eight or more very slender veins, forming long aréoles." 



This is the smallest cicada found in Japan, and it is not only rare 

 but also very hard to collect, being found always on the stems of pine 

 trees which naturally protects it. Its cry very much resembles that of a 

 certain locust (Xijihidium), producing a monotonous chitch-chitchi 

 sound, by which its presence is betrayed. It comes out in J uly and its 

 voice is heard to the end of October. It is truly an alpine insect being 

 always found in the mountain forests of the north. 



16. Melampsaltria yezoensis, sp. nov. 



Closely allied to M. radiator. Head and thorax above black, 

 sparingly covered with short yellowish metallic pilosity, sternum with 

 silvery short hairs. Basal joint of rostrum yellow ; eyes dusky with 

 pale portion ; legs testaceous with the following black markings : — fascia 

 of coxa, one or two spots of trochanter, two longitudinal fasciae and tip 

 of femora, tip and longitudinal fascia of tibiae, inner side of tarsi and tip 

 of claws, and the three spines of anterior femora. Sternum pale yellow 

 with some black markings, opercula pale yellow with the base black, 

 anterior and posterior margin of pronotum brownish yellow, the sides 

 pale yellow, a deltoid spot on each side of disk and sides of mesonotum 

 yellow, the former not continued with a slender line which extends 

 back to the borders of the cruciform elevation. Abdomen black with 



