﻿ÄÄ 舉雜 1* 第 Ä 卷第 奢號 



ScHiNES ： Fauna Austrica, Die Fliegen I. 254. 



Matsumura : Senchiu-Zukai Vol. II. p. 103. PI. XXVI, 13. 



Face shining yellow, with a shining middle black stripe, anteiinal- 

 process and vertex shining black ； the female on the upper-side of probos- 

 cis with two yellow markings, the male with a black hairs at the bases 

 of antennae.' Antennae very long, dark brown, the arista yellowish ； on 

 both sides of the mouth-opening with a black spot. Thorax black, on 

 each side with a lateral yellow stripe, which being interrupted at the 

 suture ； on the anterior margin with a lateral gray stripe, which reaches 

 nearly to the middle ； on each side with three yellow spots, one of the 

 dorsoventral being largest, other two being smaller. 



Scutellum yellow, in the middle with a black spot. 

 、- All over the thorax and scutellum with brownish hairs, in the male 

 being denser. Abdomen black, with three arched yellow bands, which 

 being cut in the middle ； the second, third and fourth segments each at 

 the posterior margin brownish ； the fifth segment almost yellow, in the 

 middle with a brownish v- shaped spot ； ventral side black, being spotted 

 as that of the dorsum. 



Wings transparent, their bases and apical parts yellow. Stigma 

 brown, veins yellow. Legs yellow, tarsi and tibiae reddish yellow. 

 Length — ビ i i-i 5 mm., ^ 16 mm. ； exp. 20-30 mm. 

 Hab. "- - Hokkaido, Honshu ； Siberia, Europe. 

 Jap. name — Higenaga-hanaabu . 



2. Chrysotoxum sachalinense Mats. 



' Matsumura : Erster Beitr. zur Ins. Fauna von Sachalin (Journ of the 

 Coll. of Agr. Tohoku Imp. Univ. 1911, Taf. II. fig. 9). 

 Female : Face shining vellovv, middle stripe black, spindle-shaped, 

 antennal-process and vertex black ； antennae fuscous, with brownish 

 arista, above the antennae with two sulphureous markings, both sides 

 of the mouth-opening with a black short stripe, parallel to the middle 

 stripe, vertex being light yellow, hairs of the orbit white. 



Thorax black, the anterior and posterior angles reddish yellow, from 

 the anterior margin to the middle with two light grayish longitudinal 

 stripes ； on the sides with small sulphureous spots, near the bases of the 



