202 t2 f r- u -4^ Ik v^ m m 1^- ^ *'i" jiii \-Wimom m r- ia d 



37. Yezoterpnosia nigricosta Motsch. 



Cicada nigricosta Motsch., Bull. Soc. Mosc. Vol. XXXIX. p. 184 



(1866). 

 Tci'piiosia nigricosta Dist., Mon. Orient. Cicad. p. 138, t. 15, f. 4 a, b 

 (1898); Mats., Ann. Zool. Jap. Vol. II, Pt. i, p. 9, t. i, f. 9, a, b 

 (1892); Thous. Ins. Jap. Vol; i, p. 209, n. 193, t. 17, f. 6 (1604). 

 Hab. — Hokkaido, Honshu ; in Hokkaido it is very common but in Honshu 



verv rare. 

 Nom. Jap. — Yeso-hariizenii. 



21. Gen. Terpnosia Dist. 



38. Terpnosia vacua Oliv. 



Cicada vacua Oliv. Euc. Meth. 5, p. 757, t. 113, f. 10(1790); Dist. 

 Mon. Orient. Cicad. p. 152 (1892); Mats., Ann. Zool. Jap. Vol. II, 



Pt. i,p, 15(1898). 

 Cicada clara Motsch. Bull. Soc. Nat. Mosc. p. 184 (1866). 

 Terpnosia pryeri Dist Mon. Orient Cicad. p. 139, t. i 5, f. 5, a, b (1892); 



Mats. Ann. Zool. Jap. Vol. II, Pt. i, p. 8, t. i, f. 8, a, b (1898). 

 Terpnosia vacua Dist., Syn. Cat. Hom. i, p. 77 (1906). 

 Terpnosia kaivamtirae Mats., Thous. Ins. Jap. Add. Vol. i, p. 80, t. 9, 

 f. 9 (1913). 

 Hab. — Honshu, Shikoku, Kiushu. 

 Nom. Jap. — Haruzeini. 

 This is a very variable species, color changing from brown to black ; in the 

 black species olivaceous spots and stripes to thorax are wanting entirely. It comes 

 only early in the spring, singing especially far up on pine trees. 



22. Gen. Euterpnosia »• g. 



» Allied closely to Terpnosia Dist., from which it differs as follows: — 



Head shorter than the breadth between eyes, the latter being broader than 

 the base of mesonotum ; tympanal coverings very short, nearly exposing entirely 

 the tympanal orifices; opercula very short and narrow, so that tympanal orifices, 

 seen from above, being visible on the lateral sides; mesonotum long and distinct; 



