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昆蟲 學雜誌 第袞卷 第^ 號 



21 Syrphus (Svrphus) micado Mats (n.sp リ (Pi. il %. 5.) 



ピ 1 horax golden green. Face pale yellow, the tubercle yellow, con- 

 colorous pubescented. Front golden yellow above the antennae with a 

 black arch, sending a narrow fuscous stripe upwardly ； fuscous pubes- 

 cented. Antennae and arista entirely fuscous. Tempora silvery pubes- 

 cented. Thorax on the sides and a lateral tubercle before the scutellum 

 yellow, In the middle with 3 darker stripes ； golden yellow, concolorous 

 pubescented, only on the nind margin fuscous pubescented. Wings 

 hyaline, yellowish suffused, veins fuscous, stigma fulvous. Calypteres 

 and halteres pale yellowish. Abdomen much broader in the middle, with 

 3 broad p-olden yellow bands, of which the first band being widely inter- 

 rupted and of a triangular form, the 2nd and 3rd in the middle narrowly 

 notched posteriorly; yellowish and fuscous pubescented, the hind parts 

 of the 2nd and 3rd bands with some fuscous hairs ； all the bands reach 

 with their entire surfaces to the lateral margin. Venter yellow, t'lie 3rd 

 and 4th segments each with a broad pale fuscous band at the posterior 

 margin and where fuscous pubescented. Hypopygium g^rayish, fuscous 

 pubescented. Legs yellow, coxae, trochanter, the bases of the femora, 

 and a middle spot of the hind tibia, fuscous, the hind tarsi being some- 

 what brownish. 



Length 一- ピ 12.5 mm. 



Hab. 一 Hokkaido (Sapporo) ； one ゲ specimen collected by Prof. 

 S. Matsumura. 



22. Syrphus (Syrphus) bilineatus Mats. (n. sp ) 



(PI. 】1， %. 4.) 



Thorax aeneous black. Face yellow, with a bluish luster, in the 

 middle with 2 fuscous stripes ； cheeks in the middle and oval mar ど in also 

 fuscous ； yellow pubescented. Front olivaceous, abc-ve the antennae 

 shining- fuscous, fuscous and fulvous pubescented. Vertex fuscous, con- 

 colorous pubescented. compound eyes quite densely grayish pubes- 

 cented. Thorax on the sides aud a lateral tubercle before the scutellum 

 fulvous ； in the middle with 3 darker stripes, which becoming broader 

 towards the hind margui. Scutellum fuscous pubescented, mingliiip- 

 some yellowish hairs. Wings hyaline, scarcely with a yellow tinge, veins 



