ì 1 



M. MATSUMUKA. 



at a distance to feel somewhat sleepy. It chiefly prefers oak trees. I 

 have not yet found this insect in other parts of Japan ; it is prohahly 

 peculiar to Hokkaido. For this reason it is known as Yezozemi. 



VI. Cicada bihammata (fig. 13 a, b). 



Cicada bihamata, Mötsch. Etud. Ent. 1861. 



" J*. Head black ; a .spot at base of front, the anterior marginal 

 angles of vertex, and a spot a little before posterior margin of eyes, 

 ochraceous ; ocelli and eyes dull ochraceous. Pronotum castaneous, its 

 margin ochraceous ; a central black fascia containing a lanceolate 

 ochraceous spot and with a wide basal spot of the some color ; lateral 

 margins inwardly and posterior margin inwardly and outwardly black, 

 the posterior marginal angle and an oblique spot just before it also 

 black. Mesonotum black, with two discal angulated ochraceous fasciae 

 united at anterior margin ; the lateral margins and the lateral sides and 

 angles of the basal cruciform elevation ochraceous. Abdomen above 

 blackish castaneous ; apical segments centrally marked with ochraceous. 

 Body beneath blackish, a spot on anterior margin of face, a marginal 

 spot between face and eyes, lateral margins of the prosternum, legs, 

 opercula and segmental margins ochraceous ; legs with blackish 

 markings. 



" Tegmina and wings pale hyaline. Tegmina with the venation 

 ochraceous and fuscous ; basal cell almost — sometimes partly — black ; 

 transverse veins at the bases of the second, third, fourth, fifth and 

 seventh apical areas infuscated ; base of claval area ochraceous. 



" The opercula about half, or a little more than half, the length of 

 the abdomen, are divergent, with their apices broad, and convexly 

 rounded, their outer margins concavely sinuate and black at outer basal 

 margin. 



"Long. excl. tegm. £ 33 mm. Exp. tegm. 88 mm." 

 This very much resembles the preceding species, but differs from 

 it in its small size, its being a little paler, and the date of appearance 



