【摘要】 记述纠头甲螨属一新种,命名为异毛纠头甲螨Eurostocepheusheterotrichussp.nov.,此外对该属的一些形态特征予以讨论。模式标本保存于白求恩医科大学生物教研室。更多还原

【Abstract】 Aoki (1 965)erectedthegenusEurostocepheuswithE .aquilinusAokifromThailandasthetypespecies.Corpuz Raros(1 979)describedthesecondspeciesE .sajiseifromPhilippine .ThepresentpaperreportedthegenusofEurostocepheusforthefirsttimefromChinaanddescribedanewspeciesofthegenus.ThetypespecimensaredepositedintheDepartmentofBiology ,NormanBethuneUniversityofMedicalScience .Dimensions.Bodylength 682 (72 8) 772 μm,width 2 96(3 2 8) 3 80 μm. Diagnosis .Adistinctspa .lpresentoneachsideofprodorsum ,whichdistictlywiderposteri orlythananteriorly .Lamellaestronglydeveloped ,subparallelandweaklycurved .Sensillusglabrous,withafusiformhead .co .plwelldeveloped ,hemicularshaped .Pedotecta 2 3conspicu ouslydeveloped ,theposteriorexpansion 3timesaslongastheanteriorone.co .nlshapedasbroadtriangles,thedistancebetweenthem 1 3RLN .Theanterior centralpartofnotogasterwithmarginalridgewhichasinvertedUshaped .Ontheventralaspect,c.standopppresent,noapo.Idiscernible ;setalformulaofepimerata :3 1 3 2 ,summetryarrangeonbothsides;epimeralsetaeslightlyroughed ;3a ,4bshorterthantheremainder.Materialexamined .Holotypeand 4paratypes(93 1 985) ,April,1 993 ,Menglun(2 1 9°N ,1 0 1 2°E)inYunnanProvince .Alltypespecimensexlitter.Remarks.ThisnewspeciesresemblesthetypespeciesE .aquilinusAoki,1 965intheshapeofbody ,structureofsensillus,spa .landpd .2 3ontheprodorsum ,butitdiffersfromthelatterinthefollowingcharacters :(1 )notogastralsetaearedifferentinsizelength ;(2 )anterior centralpartofnotogasterwithan shapedridgewhichasinvertedUshaped ;(3 )setalformulaofepimerata :1 3 2 ,symmetriallyarrangedonthebothsides;(4 )intheventralaspect,therearec.standopp .Aoki(1 965)described“stronglydevelopedapo.I” .Accordingtotheobsevtiononthenewspecies,apo .Iindiscernibleandtheauthorconsiderthat“apo .Ideveloped”maynotbeanimportantcharacterofthegenus.更多还原