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›› 1979, Vol. 15 ›› Issue (4): 256-264.

• 论文及研究报告 • 上一篇    下一篇

我国食植性林木广肩小蜂初志并记述一新属五新种

廖定熹   

  1. 中国科学院动物研究所
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1979-01-25 发布日期:1979-01-25

A PRELIMINARY SURVEY OF THE PHYTOPHAGOUS SPECIES OF EURYTOMIDAE KNOW FROM CHINA WITH DESCRIPTIONS OF A NEW GENUS AND FIVE NEW SPECIES

Liao Ding-xi   

  1. Institute of Zoology,Academia Sinica
  • Received:1900-01-01 Revised:1900-01-01 Online:1979-01-25 Published:1979-01-25

Abstract: A preliminary survey of the phytophagous species of Eurytomidae reported from this country to be injurious to woody plants has been made.As a result,1 genus and 5 species are described as new.Type of these specimens are deposited in the entomological laboratory of the Institute of Zoology,Academia Sinica,Peking. Homodecatoma gen.nov. This genus is similar to Eudecatoma Ashmead,but differs in having dimorphic antennae,and male funicle 6 jointed(not 4 jointed).It is also closely related to Fropodecatoma Ashmead,but there is a small cloudy pattern beneath marginal and proximal part of postmarginal and at the base of stigmal veins.Median ocellus located outside of scrobes;petiol very short,not as long as wide,moreover,this genus differs from Eurytoma Illiger in having punctures on head and thorax rather superficial,not so deep and obvious;the forewing with a small cloudy pattern as mentioned above already and male with 6-jointed funicle but not five joints. Type species:Homodecatoma mallotac gen.nov.et sp.nov. Homodecatoma mallotae gen.nov.et sp.nov.Monobasic,without any known allied species. Holotype ♀:Chekiang,.Ex seeds of Mallotus philippinensis(Lam.)Mull-Arg.2.Ⅶ.1973,Cheng Tai-lu. Paratype 3 ♂♂:As above. Eurytoma neocaraganae sp.nov.nearest to Eurytoma caragana Nik.but differs in having striate-punctate sculptures which is arranged in such a way as if towards the mouth.Scutellum not predominantly convex at its distal end,4th tergite shorter than 3rd,7th tergite more than 2 times the width.Ovipositor protruded.Body length 2—2.2mm.obviously shorter.(E.caraganae 4mm.) Holotype ♀:Peking,Ex Caragana sp.1963,Cheng Chang-jie. Paratype 2♀♀ 2♂♂:As above. Bruchophagus kashiensis sp.nov.resembles to Bruchophagus smirnoviae Nik.but differs in having funicles square-like or truncated except 1—2 joints lon-ger than wide,and each joint has only a crossing row of longitudinal sensoria,over-positor only slightly sxposed,and not as long as Smirnoviae which with ovipositoras 1/4.abdominal length,and leg of male without black colour.Although this speciessimilar to B.robiniae Zerova and B.philorobiniae Liao in having the same host,thebody colour is different.The present sp.almost fire-reddish,while those two spe-cies are black colour.Some other characterices are different too. Holotype ♀:Sinkiang,Kashi(Kaxgar shi),30.Ⅳ.1965,Ex pods of Robinapseudoacacia L.,Liao Ding-shi. Paratype 2 (?)(?):As above. Bruchophagus philorobiniae sp.nov.closely related to both Bruchophagus colutae Boucek and B.robiniae Zerova but differs from B.colutac by petiol of maleshorter,length of which not attains 2 times but 1.5 times as long as its broad.Themedian part of propodeum with longitudinal shrinks,does not with polygon punc-tures,3rd tergite longer than or subequal in length to 4th tergite and the end ofstigmal vein of forewing likes a bird head form not square-like and their host dif-ferent;it differs from B.robiniae Zerova in addition to some aspects as mentionedabove,its antenna as well as male body with different colour. Holotype ♀:Peking,Ⅶ.1963,Ex seeds of Robinia pseudoacacia L.,Cheng Chang-jie. Paratype 50—60 ♀♀ (?)(?):As above. Bruchophagus pseudononis sp.nov.Closely allied to B.ononis(Mayr)butit differs from the latter by having male's petiol 2.5 times as long as broad,(male'spetiol of B.ononis only 1.5 times as long as broad). Holotype ♀:Peking,1964,Ey seeds of Sophora japonica var.pendula Loud.,Cheng Chang-jie. Paratype 2 (?)♀:As above.