摘要
1981年9—11月,广西自治区科委组织了一次大瑶山动、植物区系考察。这次共采获500余只原尾虫标本,经过鉴定,分属于2科6属。这里把古蚖属的两新种及其幼虫期记述如下。模式标本保存于中国科学院上海昆虫研究所。
The present paper reports two new species of the genus Eosentomon and their larval stages,which were collected from the Dayao Mountains,Guangxi Autonomous Region.Types are all deposited in Shanghai Institute of Entomo-loygy,Academia Sinica.1.Eosentomon jinxiuensis Zhang,sp.nov.(figs.1-11)Total length 774-980μin expanded adults.Head 102-118μin length and 77-80μin width.Clypeal apodeme horse shoe shaped.Pseudoculus 10-11×10-11μ,with 5 longitudinal striae and 3 tiny globules.PR=10-11.Foretarsus 80-87μlong,TR=5.0?.2.Dorsal sensillae t-1 clavate,about halfway between a3 and a3’,BS=0.9 in both sides,t-2 as willow Ieaf;t-3 rather burly.Exterior sensillae o and c subequal in length;b slightly thickened at the middle part,d stout,e and g spatulated;f-1 more or less spindle.f-2 small.Interior sensillae a’relatively broad;b’-1 absent,6’-2 willow leaf like;c’reaches to base of O3.Midtarsus 35-39μlong and claw 10×5 hindtarsus 42-48μlong and claw 12-13μ;both have short empodia.Diameter of the spiracles 6.0-6.5μ.Female squama genitalis has"S"shaped processus sternalis,comparatively narrow corpus processus and long filum.Syntype:2,2 Jinxiu,Guangxi,30-X-2-XI,1981 The larva]stages are also described.There are no globules in the pseudoculus of all larva]stages.Note:The present new species is related to Eo.agaeopthalmum Yin et Zhang 1982,but it can be distinguished from the latter by the BS of the fore-tarsus and the female squama genitalis.2.Eosentomon montanum Zhang,sp.nov.(figs.12-20)Body 842-1046μlong.Head 112-124μin length and 84-89μin width,with a horse shoe shaped clypeal apodeme.Psuedoculus 11×10μ,with 2 longitudinal striae and 3 tiny globules.PR=10-11.Foretarsus 86-91μlong,TR=4.8-5.2.Sensillae t-1 slightly nearer to a3 than to a3,BS-1.2-1.3;t-2,f-1 and b’-2 almost equal in size and shape,d stouter,e and g spatulifor m,a’rather broad,b’-1 missing,c’short and small.Midtarsus 40-44μlong and claw 12-13μ,hindtarsus 51-55μlong and claw 13-15μ;both with short empodia.Diameter of the spiracles 7.0-8.0μ.Female squama genitalis related to the previous species Eo.jinxiu-ensis,but the caput processus evenly and obliquely curved towards the median edge of the stylus.Syntype:3,3 Jinxiu,Guangxi,6-Ⅸ-25-Ⅹ,1981.The larvalⅡand maturus junior are also recorded.Note:The new species is resembling to Eo.mar gar ops Yin et Zhang 1982,but the foretarsal sensilla b’-1 is absent.Furthermore,the situation of the posterior setae p1’on terg.Ⅶand the female squama genitalis are different from the latter.
作者
张之沅
Zhang Zhiyuan(The Institute of Environmental Science,Anhui Province)
