等齿泥蜂属一新种（膜翅目：泥蜂科）

A NEW SPECIES OF THE GENUS ISODONTIA PATTON (HYMENOPTERA:SPHECIDAE)

本文记述等齿泥蜂属ＩｓｏｄｏｎｔｉａＰａｔｔｏｎ一新种，小室等齿泥蜂Ｉｓｏｄｏｎｔｉａｃｅｌｌｌｉｃｕｌｌａｓｐ．ｎｏｖ，新种与Ｉ．ｎｉｇｅｌｌａ（Ｓｍｉｔｈ）近似。模式标本保存在中国农业大学昆虫标本室。

Isodontia cellcula sp.nov.(Figs. 1-11)Body length 13. 5mm. Black. Clypeus without median longitudinal carina, anterior margin of clypeus without teeth in the middle. Labrum with a round projection on its upper central part. Mandibles rather slender, with only one tooth in the inner margin. Relative length of the flagellomere Ⅰ: Ⅱ: Ⅲ= 3.0:4. 4:5.4. Collar of pronotum rather small. Scutum very densely punctured, scutellum without median longitudinal impressed line. Sterna of abdomen without black long dense hair.Holotype/, Bose (23. 9'N, 106. 6'E), Guangxi Province, May 30, 1982, collectedby WANG Xin--h. Deposited in the Collections of Beijing Agricultural University.The new species is closely allied to i. nigella (Smith), but differs in the hair of abdomi-nal sterna, relative length of the flagellomere, a round projection of labrum, head and therrax in different sculpture, and mandible, forewing cells and genitalia in different shape.