﻿THE ENTOMOLOGICAL MAGAZINE. Vol. III. Pt. Ill & IV. m 



broad as the thorase, on the side nearly parallela with 3 pairs 

 of bluish-white spots, those of the 2nd segment smaller, trans- 

 verse, nearly in the middle of the segment, those of the 3rd and 

 4th segments somewhat rhomboidal, not touching the lateral sides. 

 Venter fuscous, the hind margin each segments fulvous. Legs 

 brownish yellow, coxae, trochanter, apical halves of the anterior 

 and middle tibiae, larger part of the tarsi, as well as the larger 

 part of the hind legs, except both ends of the femur and the basal 

 of the tibia, fuscous. 

 Length — 8 mm. 



Hab. 一 Hokkaido (Sapporo, Hidaka) ； one female specimen col- 

 lected by Mr. Masato Ishida, and another female one 

 by Prof. S. Matsumura. 



Nom. Jap. 一 Ruriboshi-tsuyahirataabu. 



3. Melanostoma elongatum Mats. (n. sp.) PI. 1， fig. 8, $ 

 $ Aeneous black. Face plumbeous pruinous, with short whitish 



hairs ； front and vertex fuscous pubescent. Antennae black, the 

 3rd joint and arista brownish. Thorax and scutellum pale fulvous 

 pubescent. Wings hyaline, with a fulvous tinge, veins brown, stigma 

 fulvous. Calypteres grayish white, halteres orange-yellow. Abdomen 

 black, nearly as broad as and 2^ times as long as the thorax, 

 with 3 pairs of reddish yellow spots, those of the 2nd segment 

 being smaller and nearly in the middle, those of the 3rd segment 

 nearly of a quadrate form, somewhat lonjrer than wide, those of 

 the 4th segment nearly of one half size of the proceeding, broader 

 than wide, with the proceeding touching the lateral margins. Venter 

 fuscous, with yellowish spots. Legs yellowish, coxae, trochanter, 

 the hind femur, except both ends, and a middle spot of the same 

 tibia, as well as the larger part of the same metatarsus, fuscous.. 

 Length — 8 mm. 



Hab — Saghalien (Toyohara) ； one female specimen collected 



by Messrs. J. Adachi and S. Isshiki. 

 Nom. Jap ― Naga-tsuyahirataabu . 



4. Melanostoma motodomariense Mats. 



(n.sp) PI. I, fig. 4. ？. 



