Tree New Species of The Genus Macrophya (Hymenoptera: Tenthredinidae)

Abstrcat Tree new species of the Genus Macrophya are described: Macrophya jiuzhaina Chen et Wei, sp. nov., Macrophya leyii Chen et Wei, sp. nov., Macrophya parviserrula Chen et Wei sp. nov.. The type specimens are deposited in the Insect Collection of Central South Forestry University, Zhuzhou, Hunan, China.M. jiuzhaina Chen et Wei , sp. nov.♀ Body length 8.0 mm. Black, following parts white: basal half of mandible, front side of fore femur and tibia, a small spot on hind tibia dorsally.This species is similar to M. imitator but differs from it in trochanters black, appendage ellipticum. M. leyii Chen et Wei , sp. nov. ♀ Body length 10.0 mm. Black; following parts yellowish white: clypeus, labrum, basal half of mandible, 3+4 segment of palpi dorsal, posterior margin of postocellar area, posterior margin of pronotum, metoscutellum , all trochanters and coxa, apical 1/2 of fore femur, outside of hind coax, middle posterior margin narrowly of abdomen tergites. Fore 3/4 of hind femur, dorsal tibia, the lateral of 2～7 tergites dark redish brown. This new species is similar to M. melanolabria but differs from it in clypeus and all trochanter white, most part of hind femur fusco-testaceous, tergite with white spot.M. parviserrula Chen et Wei , sp. nov. ♀ Body length 12.0 mm. Black, following parts yellowish white: clypeus, labrum, basal half of mandible, posterior margin of postocellar area, posterior margin of pronotum, a triangular spot on the lob of scutum, masoscutellum, post-tergite, the outside of hind coax, middle of tibia, posterior margin of abdomen tergites, 10~(th) tergite. ♂ Body length 9.0～10.0 mm. Colour and structures similar to female, subgenital plate rounded at apex, Penis valve as Fig.3.This new species is similer to M. flavomaculata but differs from it in only scape yellow, gena area without yellow spot, ventral side of hind tarsus black.