283 



are very small yellowish haired median triangles except on the seventh 

 segment, on each side there is also narrow less defined interrupted 

 black stripe from the second to fifth segments and on the hind margins 

 which cause the interruptation of the side stripe with conspicuously 

 very small yellowish haired side flecks, the side stripe on the second 

 segment broadened but quite obscured by a yellowish tomentum which 

 extends up to on the large blackish lateral spots on the first segment ; 

 first segment with a rather large transverse black median spots ; sixth 

 segment with a very inconspicuous reddish spots on the outsides of 

 the broad black stripe ; pubescence on the rest short, depressed, and 

 black, but that on the first segment becomes yellowish on just behind 

 the sides of the scutellum, all the side- hairs longer and black but on 

 the sides of the second segment intermixed with numerous whitish 

 hairs. Underside only with the seventh segment blackish, covered 

 with a ;nuch shorter black pubescence all over the surface but on the 

 lateral hind margins of the segments from the second to the fifth there 

 is more or less whitish rather conspicuous though still short pubescence ; 

 seventh segment covered with numerous long erect curved black 

 bristly hairs ; sixth segment at the sides and about the middle more 

 or less blackish and covered with black pubescence all over. 



Length : 23 mm. 



Described from a single well preserved specimen from Okinawa 

 Island (July). This species is somewhat allied to Tabanus mbicundus 

 from Ceylon, but it is easily distinguished from the latter by its large 

 size, by the somewhat brownish tinged face, by the distinct thoracal 

 stripes, by the conspicuous black side-flecks, by the reddish brown 

 ventral abdomen, and by the reddish tibiae. From Tabamis fumifer, 

 stantoni, indicium, brunneus, nialayensis, and factiosus, it is quite deffe- 

 rent. 



After having described the above description I have had a chance 

 to travel in Oshima Island (Kagoshima-Ken), lOth-iQth July in the 

 year 1918, and collected a good long series of a species, which is 



