四突跳小蜂亚科二中国新记录属二新种（膜翅目：跳小蜂科）

报道了采自辽宁阜新，黑龙江镜泊湖和云南昆明的跳小蜂，即阔柄杜丝跳小蜂，新种Dusmetia latiscapa Xu，sp．nov、云南蚧狼跳小蜂，新种Gyranusoidea yunnanensis Xu，sp．nov．。对新种进行了详细描述。本也是杜丝跳小蜂属Dusmetia Mercet和蚧狼跳小蜂属Gyranusoidea Compere在我国分布的首次记录。阔柄杜丝跳小蜂，新种Dusmetia latiscapa Xu，sp．nov．寄主：粉蚧。分布：黑龙江(镜泊湖)，辽宁(阜新)。本种与Dusmetia cardinalis Hoffer，1969相似，有以下几点区别：(1)本种索节第4节端部和第5、6节为白色，后索节3-6节为白色；(2)本种柄节长为宽的2．7倍，后柄节长为宽的5倍；(3)本种前翅完全退化，呈翅芽状，后前翅退化，末端尖；(4)前头胸腹呈现黑褐色，后呈红褐色。云南蚧狼跳小蜂，新种Gyranusoidea yunnanensis Xu，sp．nov．寄主：粉蚧。分布：云南(昆明)。本新种与Gyranusoidea hecale Noyes et Hayat 1988很相似，主要区别是新种：(1)触角窝与复眼之间有1褐色斑，后触角窝与复眼之间有1褐色线相连；(2)触角柄节细长，长为最宽处的5倍，后柄节膨大，长为最宽处的2．5—2．8倍；(3)触角柄节近端无白色环斑，后触角柄节近端有白色环斑。

NEW RECORDS OF TWO GENERA OF TETRACNEMINAE (HYMENOPTERA: ENCYRTIDAE) WITH TWO NEW SPECIES IN CHINA

Two new species of Tetracneminae, Encyrtidae, collected from Heilongjiang, Liaoning, and Yunnan, China are described, i.e. Dusmetia latiscapa Xu, sp. nov, and Gy ranusoidea yunnanensis Xu, sp. nov.. Dusmetia latiscapa Xu, sp. nov differs from Dusmetia cardinalis Hoffer, 1969 in the coloration of the apical forth funicular segment and the fifth-sixth funicular segments of antennae; (2) length of scape; (3) having undeveloped fore wing and (4) the coloration of body. Gyranusoidea yunnanensis Xu, sp. nov. can be distinguished from the Gyranusoidea hecale Noyes et Hayat 1988 by (1) 1 brown match between antennal scrobe and orbit; (2) scape 5.0 times as long as wide, and (3) antennal scape without white ring subapically. Both two genara of Dusmetia Mercet, and Gyranusoidea Compere are recorded for the first time in China. All specimens examined are deposited in Institute of Applied Entomology, Agriculture & Biotechnology College, Zhejiang University, Hangzhou, China.