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Ä 蟲學雜 誌 第成卷 第查號 



brown, with three yellowish bands, respectively in the second, third ana 

 fourth segments, which not reaching to the lateral margins, the first bana 

 being cut in the middle, the fifth and sixth segments each with two 

 yellowish spots, each segment with a yellowish spot at the lateral sides, 

 that of the first segment being pale yellow ； the ventral side marked as 

 that of the dorsum. 



Lep-s pale yellow, hind tarsi somewhat deeper in color. Wings hya- 

 line, stigma and veins fulvous. Halteres yellow. 



Length ― ^ 8 mm.; exp. 13 mm. 



Hab. ― Honshu (Kyoto) ； one ^ specimen collected by Mi.M. Suzuki. 



Jap. name —— Suzuki- nime-nirataabu . 

 Somewhat resembles to M. taeniatus, but differs from the latter by the 

 presence of yellowish spot on each side of the abdominal segments. 



2. Melithreptus taeniatus Meig. 



Meigen : Syst. Beschr. Ill, p. 325 Taf. 30, f. 35， 36 (1822). 



Black. Face pale yellowish, shining, its tubercle and epistoma pitchy 

 brown ； antennae yellow, the arista fuscous, at the base yellow ； vertex 

 black, with fulvous hairs benind, mingling some few fuscous hairs. 

 Thorax on the sides and scutellum pale yellow, the latter with fuscous 

 hairs, pleurae with few, shining, silvery, pale yellowish spots. Abdomen 

 somewhat shorter than the wing, the second, third and fourth segments 

 each with a yellowish band, becoming deeper in color towards the apex, 

 the htth with 5 black spots, the middle one being long and nearly- 

 reaching to the hind margin; the venter pale yellow, black bands of the 

 dorsum being visible through. 



Wings hyaline, with a grayish flash, stigma a ad veins fulvous. Legs 

 pale yellowish, the anterior femur at base with x fuscous spot, tarsi 

 somewhat infuscated, in the female abdomen broa;Ier, being broadest in 

 the third segment. 



Length —— 9 mm., ^ 7.5 mm, ； exp. 15 /、に".' ^ 13 mm. 



Hab. ― Saghalien, Hokkaido, Honshu, Kiushu ； China, Siberia, 

 Europe. ^ 



Jap. name ― Hime-hirataabu. 



