﻿THE ENTOMOLOGICAL MAGAZINE, Vol, III. Pt. Ill & IV. 】35 



veins fuscous. Stigma fulvous. Calyfteres pale yellowish. Halteres 

 yellowish, at the base of the stalk somewhat infuscated. Abdomen 

 nearly as broad as the thorax, with 4 pairs of orange spots, all 

 (except the first pair) touching the lateral sides, with pale yellowish 

 hairs ； venter paler, but marked nearly the same as above. Legs 

 yellowish, coxae, trochanter, middle part of the femur and tibia, as 

 well as metatarsus of the nind lee^s, fuscous. 

 ^. Differs from the male as follows : 



Vertex, front, and facial tubercle shining. Abdominal spots 

 much dilated at the lateral margins and the last spots being much 

 larger. 



Length — 宇 8 — 9 mm. 



Hab. ― Hokkaido (common), Honshu (Gifu, Tokyo). 



Noin . Jap. ― Sesuji-tsuyahirataabu. 



6. Melanostomatenuis Mats. (n. sp.) 



^, Black, with an indigo tinge. Face silver gray pruinous, fine 

 grayish pubescent ； front and vertex pale yellowish pubescent. An- 

 tennae black, the 3rd joint and arista yellowish brown. Proboscis 

 brownish. Thorax and scutellum fine pale fulvous pubescent. Wings 

 hyaline, with a pale fulvous tinge, veins brown, stigma fulvous. 

 Calypteres whitish, halteres pale yellowish. Abdomen black, scarcely 

 broader than the thorax, with pairs of yellowish spots, those of the 

 2nd segment beinp- very small and situated nearly in the middle, 

 those of the 3rd and 4th segments nearly of a quadrate form, some- 

 what narrower at the inner sides, those of the 5th being smaller 

 and distinct only at the lateral sides, the last 2 pairs only touching 

 the lateral sides. Venter black, on thd sides with yellowish spots. 



Legs yellow, coxae, trochanter, the hind legs, except both ends 

 of the femur and tibia, as well as the middle part of the tarsus, 

 fuscous. ■ 



Length — 6 mm. 



Hab. — Saghalien (Toyohara) ； one female specimen collected by 



Messrs J. Adachi and S. Isshiki 

 Norn. Jap. — Hoso-tsuyahirataabu. 



