130 



Abdomen large and rather flat, longer than the head and thorax 

 (including the scutellum) together, and broader than the broadest part 

 of the thorax, with the tip roundish. Dorsum deep black,, with the 

 rather broad reddish yellow band at the hind margins of the segments, 

 but on the basal segment it is very narrow about the middle one-third ; 

 all these bands more or less dusted with ashy grey especially on the 

 basal two or three segments, almost always the grey tomentose space 

 at the middle triangularly notched above; the sides of the segments 

 not reddish yellow but black as in the disc though there are abundant 

 and dense, somewhat outspread golden hairs ; pubescence dense and 

 depressed deep golden yellow, and which becomes fewer towards the 

 bases of the segments and which is intermixed with similar but black- 

 hairs about the basal two-thirds of each segment, consequently it seems 

 so that there are the conspicuous broad deep golden coloured posterior 

 bands ; ventre as on the dorsum except on the first segment entirely 

 black ; the three basal bands do not notched above at the middle, and 

 the seventh segment without any long black bristles. 



Length : 19-20 mm. 



Male unknown to me. 



This species is very uncommon in Japan, occuring in the Islands 

 of Sakhalin, Hokkaido, and Formosan. In the latter Island only one 

 female has been collected by Prof. S. Matsumura, at Arisan (about 7600 

 feet above sealevel), on the first of August in 1907. It is recorded from 

 northern Europe and Siberia, but there is no record from the British 

 Islands. It is quite accessible that T. tarandinus occur in Sakhalin 

 and Hokkaido, but it is rather unreasonable to suppose that it is 

 found in Formosa, as it does not occur in the Japanese main islands. The 

 specimen from Formosa is quite identical with the one from Norway, 

 without doubt. The species from Sakhalin is described as Tabanus 

 karafutonis by Prof. Matsumura in 191 1. It would be impossible for 

 anyone to verify the species from his description in which he makes 

 no mention of the frontal callosities, of the ocelligerous tubercle, and 



