横断山管蓟马二新种记述(缨翅目:管蓟马科)

TWO NEW SPECIES OF PHLAEOTHRIPIDS FROM HENGDUAN MOUNTAINS, CHINA (THYSANOPTERA: PHLAEOTHRIPIDAE)

本文记述了横断山管蓟马科的二个新种。模式标本存于中国科学院动物研究所。 棕角无翅管蓟马 Apterygothrips brunneicornus Han 新种(图1:A—F) 雌虫(缺翅型):体小而细长,长约1.7mm。全体黑棕色,仅触角节Ⅲ最基部及各足胫节端部及跗节黄棕色。所有体鬃端部尖锐。 头长179μm(量度单位下同),复眼后宽128。复眼较小,单眼缺。单眼鬃很短,复眼后鬃长41,距眼13。触角8节,各节长(宽):Ⅰ.31(33),Ⅱ.45(29),Ⅲ.38(26),Ⅳ.

The present paper deals with two new species of Phlaeothripidae from Hengduan Mountain,China.The specimens are collected by the Comprehensive Scientific Expedition to the Hengduan Mountain,Academia Sinica.The type specimens are kept in the Institute of Zoology,Academia Sinica.All measurements are in microns.Apterygothrips brunneieornas Han sp.nov.(fig.1:A-F)Allied to Apterygothrips hispanicus (Bagnall) 1916,but may be distinguished from the latter by following pioms:(1).New species antennal segments brown,only segment Ⅲ basal half yellowish brown,(hispanicus antennal segmehts Ⅰ-Ⅱ and Ⅶ-Ⅷ brown,segment Ⅲ ye-llow,Ⅳ Ⅵ yellowish to light brownish-yellow);('2).Antrnal segment Ⅲ with I sense cone (hispanicus with 2 sense cone);(3)Ocelli ahsent (hispanicus ocelli present);(4).Prothorax about 1.5 times as brosd as long,the bristles at posterior angles 0.27 as long as prothoras,the epimeral bristles pointed at tips,(hispanicus prothorax about 2 times as broad as long,the bri-steles at posterior angles 0.4 as long as prothorax,the epimeral bristles dilated at tips);(5).Mesopraestermus incomplete,with an intermitrent medium,two lateral plates very little,(hispanicus.mesoprarsternnm inrompere,restricted to two triangular lateral plates).Holotype on Cunninghamia sp.Sangdui,Daochong Co.,Sichuan Prov.,6-Ⅵ-1982,by Cui Yun-qi.paratype on Cunninghamia sp.,Haitong,Markam Co.,Xizang (Tibet) Autonomous Region,3500m,28,Ⅷ.1982,by Cui Yunqi.Cephalothrips brachychaitus Han sp.nov.(fig.2:A-F)Allied to Cephalothrips albostriatus zur Strassen 1968,but may be distinguished from rhe latter by the following points:(1) New species head shoter,204 long,1.6 times as long as pro-thorax,1.9 times as long as tube,(albostriatus head longer,241-260 long,1.91-1.96 times as long prothorax,2.36-2.41 times as long as tube);(2) Antennal segments brown,only segment Ⅲ basal half darker yellow,(albostriatus bases of antennal segments Ⅲ-Ⅵ yellow).(3) Prothorax with posteroangular and epimeral bristles broad,flat and branched,other bristles pointed at tips,(albostriatus prothorax with all bristles dilated at tips).(4) Apterous (albos-triatus brachypterous,wings 31-36 long).(3) Pelta on abdomenal segment I tergite transverse form,(albostriatus pelta semicircle form).(6) Tube thiner,1.8 times as long as across base wide,(albostriatus tube stouter,1.6 times as long as across base wide).Holotype on Sageretia pycnophylla,Lenglong Xiangcheng Co.,Sichuan Prov.,2700 m,26,VI.1982,by Cui Yun-qi.