﻿'ュ 6 



ÄÄ 學 雑誌 第 威お 第奩號 



parallel upon the abaomen ； venation much resembling to that oi the 

 paragUS, the posterior angle of the first posterior cell being rectangular. 

 We have in our college only one species. 



1. Pipizella k^rumaiensis Mats. (a. sp.) ?1. I, fig. 12, 



Face, front and vertex metallic-green, nearly no hairs ： antennae 

 fuscous, the third joint with a fine brown arista. Thorax metallic green, 

 punctured, with two grooves along the margin and across the middle. 

 Abdomen metallic blue, polished, oval and flattened, punctured. 



Legs brownish ydlow, femora and the apices of tarsi Diack. Wings 

 hyaline, with a grayish tinge, veins black, cross -veins shaded with brown. 

 Halteres fulvous- 

 Length ― ^ 5 mm. ； exp- 9 mm. 



Hab. ― Honshu (Iwate) 2^ specimens collected by Mr.T.Ogasawara. 

 Jap. name —— Karumai- tama-hirataabu. 



Genus 5. Eumerus Meigen. 



Meig. : Syst. Beschr. III. 202 (1822). 



Syrphus Panz. ， F ； Eristalis F. pt. ； Milesia Latr. 



Middle to small size, black or metallic-green, with few hairs, some- 

 times being of rusty color on the abdomen. 



Head hemispherical, broader than the thorax. Antennae shorter 

 than the head, the third joint rounded, at the apices truncated usually, 

 rarely elongated and tapered, always flattened ； sometimes they are very 

 large, in the female larger than those of the male ； on the anterior part 

 of the third joint with three jointed bare arista. Face somewhat vault- 

 ed, without tubercle, with shining dense nairs, proboscis thick and short. 

 Compound eyes haired, sometimes bare, in the female dich optic. Thorax 

 quadrate, with rounded shoulders, dorsum somemhat vaulted. Scutellum 

 dark, bordered. Abdomen longer than the thorax, nearly the same 

 width with or on the middle somewhat broader than that of the latter; 

 in the male irounded posteriorly and in the female tapered, usually with 

 white half moon-shaped markings. Legs- quite strong, nmd femora thick- 

 ened , each orn the imderside with a spine; the hind tibiae being bent. 



Winp-s at rest folded nearly in parallel, m arg mi cell opened, the third 



