207 



and depressed, but on the two basal segments there are a few erect 

 brownish hairs which are rather numerous on the first segment, the 

 seventh segment with a few scattered curved black bristles near its 

 base ; pubescence on the sides somewhat sloping, longer than that on 

 the disc, but similar in colour ; pubescence on the ventre much shorter 

 and thinner than that on the dors'um, the seventh segment with numer- 

 ous stout erect black bristles which extend up to the sixth segment. 



Length: 9.8-12 mm. 



Described from three specimens of females collected by the 

 author at Jozankei near Sapporo, about fhree o'clock on an afternoon 

 in August 1906. Two females taken in Tchigo by Mr. A. Nohira (at 

 Akakura on the 8th of August in 1914), no doubt, belong to the 

 same species, but they are distinguished by a prominent process of the 

 upper apex of the second antennal joint, by the absence of the black 

 bristles on the two basal joints of antennae, on about the tip of the 

 posterior tibiae, and on the palpi, by the black bristles on the seventh 

 ventral segment of the abdomen not extending up to the preceding 

 segment, and by a much more golden yellow appearance. The author 

 therefore, took these two females, as a local variety, and named them 

 splendens n. var. (Length: H-I2 mm.). 



The female of the typical sapporoensis bites human beings, but 

 it seems that the effect does not continue for long. In author's case 

 it was only one day's trouble, although he always suffer very much 

 by any biting of dipterous insects. 



This species probably is not very common, and occurs only in 

 the northern parts of Japan proper. 



4. Tabanus cordiger, Meigen. (PI. V, figs. 6 & 7). 



'-Himp-Shirofu-Abn) 



Syst. Beschr., II, p. 47, 1820. 



Macquart, Recueil. Soc. Sc. Agr. Lille, 9. 447, 1826. 

 Zeller, Isis, XI, p. 817, pi. I, figs. 10-13, 1842. 



