Length: 11.8-12.1 mm. 



Loew's description fits with two females from Sakhalin and Hok- 

 kaido, so well that I am induced to refer them to this species. The 

 specimen from Sakhalin is Tabanus komurae, Matsumura, without any 

 doubt, from the comparison with his type. He described from rather 

 a denuded specimen, and his description is not accessible for determi- 

 cation of this species- I am obliged to abandon the name, komurae 

 established by him. Therioplectes hirticeps is not very common 

 even in the two Islands of Hokkaido and Sakhalin, as I have records 

 only from Solowiyofka and Jozankei, from July I2th to i6th. The 

 female is one of horse-biters, but her attack may not be so severe as 

 that of the following species. 



3. Therioplectes tropicus, Panz. (PI. Ill, figs. 4 & 5). 



(KibosIii-AIi, or Karafnto-K tiro- Abu.) 

 Tabanus tropicus, Panz., Fauna Germ., XIII, PI. XXII, 1/94. 



Meigen, Klass., L, pf 168, 1804; Syst. Beschr., II, p. 57, 1820. 

 Linne, Fauna Suec., p. 463, 1761 (pt.) ; Syst. Nat., ed. XII,2, 



p. i ooi, 1767 (pt.). 

 Mueller, Zool. Dan. Prodr., p. 180, i776(pt); Fauna Ins. Fridr. 



p. 86, 1764 (pt.). 



Scop., Ent. Carn., p. 371, 1763 (pt.). 

 Deg., Mem. pour serv. a 1'hist. d. Ins., VI, p. 220, pi. XII, 



fig. 15, 1776 (pt.). 

 Fabricius, Spec. Ins., II, p. 458, 1781 (pt.).; Syst. Antliat., p. 



loo, 1805 (pt.); Knt. Syst., IV, p. 368, 1894 (pt). 

 Schranck, Enum. Ins. Austr., p. 479, 1781 (pt.) ; Fauna Boica, 



III, p. 154, 1803 (pt.). 

 Herbst, Gem. Naturgesch., VIII, p. 113, pi. CCCXLII, 



fig- 4, 1/87 (pt-). 



Vill., Entom. Linn., Ill, p. 553, 1789 (pt.) 

 Gmel., Syst. Nat., V. p. 2884, i/9 2 (pt-)- 



