﻿THE ENTOMOLOGICAL MAGAZINE 



2》" 



10. Melithreptus diminutus Mats, (msp.) PL I, fig. i8, ^, 



ビ, Face and frontal-triangle pale yellow, vertical triangle black, face 

 in the middle without black speck. Antennae yellow, the third joint 

 somewhat brownish, with a black arista. 



Thorax black, with very fine and thinly scattered yellowish hairs, 

 lateral stripes pale yellow, scutellum yellow, with black hairs. 



Abdomen black, with three broad yellow bands, yellow and black 

 hairs being mixed on the bands ； the second band being broadest, the 

 fourth yellowish at the posterior margin, hypogygium yellow. 



Legs yellow, with black hairs, the last 2 joints of the hind tarsi 

 brown. Wings hyaline, veins brown, stigma pale yellow. Halteres 

 pale yellow. 



Length ― ビ 5 mm.; exp. 8.5 mm. 



Hab. ― Honshu (Kyoto) ； one specimen collected by Mr. M, Suzuki. 

 Jap. name 一 Ko-nime-hirataabit . 

 Somewhat resembles to formosanus M., but smaller in size. 



Genus 7. Xanthogramma Schiner. 



ScHiNER : Wien'ent. Monatscbr. IV. 215 (i860). 

 Musca Degeer; Syrphus Fabricius, Meigen, Rondani ； 

 Enstalis Zetterstadt ； Scaeva Fallen ； Doros Meigen, Zettnek, 



Walker and Loew. 

 Quite large, nearly bare metallic black flies. 



Head hemispherical, a little broader than the thorax ； antennae 

 shorter than the head, the third joint rounded, with an arista near the 

 base, bare. Face yellow, with a tubercle on the lower part ； compound 

 eyes bare, in the male holoptic, at the vertex black, polished. 



1 norax vaulted, nearly of a quadrate-form, with rounded shoulders ； 

 on the lateral margins of dorsum with yellow stripes, on the pleurae 

 with yellow markings; scutellum yellow, at the base black. Abdomen 

 somewhat twice longer than the thorax, with yellow bands, somewhat 

 vaulted, a little broader than the thorax. 



Legs yellow, the bases of femora being somewhat thicljened. Wings 

 just iiRe that of the Syrphus. 



We have in our college only three species. 



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