摘要
记述采自我国湖南省南岳、道县和双桥的皿蛛科皿蛛亚科蜘蛛5种.其中有4个新种:南岳斑皿蛛tepthyphantes nanvuensis、衡山斑皿Lepthyphanteshengshanensis、双刺长指蛛Kuestneria bicultrata和双板指蛛Bathyphantes dipetalus,1个既有种:天目中指蛛Centromerus tianmushanus Chen et Song,1987。
Four new linyphud species and one known species arc described from Hunan Province, China : Lepthyphantes nanyuensis sp. nov. , Lepthyphantes hengshanensis sp. nov. , Bathyphantes dipetalus sp. nov. , Kaestneria bicultratua sp. nov. and Centromnenus tianmushanus Chen et Song, 1987. All types of new species are deposited in Faculty of Life Sciences,Hunan Normal University.1 Lepthyphantes nanyuensis sp. nov. (figs. 1~11)Holotype ♂ ,paratypes 1 ♂ 3 ♀♀ ,Nanyue(27. 2°N, 112. 7°E) ,3 - 7 , Aug. ,1995.Male: Body length 2.44mm. Carapace 1.12mm long, 0.93mm wide; abdomen 1. 22mm long, 0. 83mm wide. Carapace light yellow brown ALE = PME = PLE(0. 06mm)>AME(0. 04mm), AME~ AME = AME^ALE(0. 04mm),PME~ PME = PME^PLE(0. 06mm). Chelicerae with unconspicu-ous stridulaling files on lateral surface of its base, with two anterior margin teeth and one posterior margin tooth. Legs yellow - brown. Length of legs : Ⅰ 3. 16mm ( 0. 95 + 1. 07 + 0. 70 + 0. 44 ), Ⅱ 2. 88mm(0. 88 + 0. 98+0. 59 + 0. 44), Ⅲ 2. 34mm(0. 73 + 0. 73 + 0. 49 + 0. 39), Ⅳ 3. 05mm(0. 90+1. 02 + 0.68 + 0.44). Dorsal spines of tibia 2-2 -2 - 2. Tm Ⅰ ca. 0. 28,Tm Ⅳ absent. Abdomen bright pale brown with distinct black dorsal pattern. ', Female: Body length 2. 49mm. Carapace 0. 93mm long, 0. 78mm wide; abdomen 1. 46mm long, 1. 07mm wide. Body form and color as same as that of male. Chelicerae with five anterior margin teeth and five posterior margin tooth.The new species is somewhat close to Lepthyphantes maritimus Tnasevich, 1988, but there are differences between the two species in the starting position of the scape on ventral plate of epigynum and folding manner of scape.2 Lepthyphantes hengshanensis sp. nov. (figs. 12~16)Holotype ♂ , Nanyue, 3 - 7, Aug. , 1995.Male: Body length 2.51mm. Carapace 1.02mm long, 0.78mm wide: abdomen 1.37mm long, 0. 78mm wide. Carapace yellow brown . ALE = = PME (0. 09mm) > PLE (0. 06mm) > AME (0. 04mm),AME^AME = AME^ALE = PME^PME = PME^PLE(0. 04mm). Chelicerae with obvious stridulating files on lateral surface of its base, with two anterior margin teeth and tow posterior margin teeth. Legs yellow - brown. Length of legs : I 5. 03mm ( 1. 37 + 1. 56 + 1. 32 + 0. 78 ), Ⅱ 3. 33mm(0. 98 + 0. 98 + 0.83 + 0. 54), Ⅲ 3. 47mm(0. 98 + 1-07 + 0-88 + 0. 54), Ⅳ 4. 63mm(l. 27 + 1-41 + 1.22 + 0.73). Dorsal spines of tibia 2 -2 -2 -2. Tm Ⅰ ca. 0.24, Tm Ⅳ absent. Abdomen bright pale brown with several pairs of black stripes and some silvery guanine spots on dorsal surfase.Female unknown.The new species seems closely related to Lepthyphantes kochiellus (Strand, 1900) , but could be distinguished from the latter by form of lamella and embolus Lepthyphantes kochiellus division.3 Kaestneria bicultratus sp. nov. (figs. 17~20)Holotype ft paratypes 2 ♀ ♀, Daoxian (25. 5°N, 111. 5°E), 8, Aug., 1987; paratypel ♀ , Shuangqio(26. 7°N, 112. 0°E), 18, Aug. , 1991Female; Body length 2. 05mm. Carapace 0. 78mm long, 0. 59mm wide;abdomen 1. 22mm long,0. 93mm wide. Carapace dark brown . ALE = PME = PLE(0. 07mm)> AME(0. 05mm) ; AME - AME (0.04), AME^ALE(0. 02),PME~ PME = PME^PLE(0- 05mm). Chelicerae without stridulating files on lateral surface of its base, with three anterior margin teeth and tow posterior margin teeth. Legs yellow-brown. Length of legs: Ⅰ 4. 39mm(1. 17 + 1.41 + 1.07 + 0. 73), Ⅱ 3. 61mm(1. 02 +1. 07 + 0. 90 + 0. 61), Ⅲ 2. 56mm (0. 78 + 0. 68 + 0. 66 + 0. 44), Ⅳ 3. 41 mm (1. 02 + 0. 93 + 0. 93 + 0. 54). Dorsal spines of tibia 2 - 2 - 2 - 2. Tm Ⅰ ca. 0. 18, Tm Ⅳ absent. Abdomen bright yellow brown with light black stripes and some silvery guanine spots on dorsal surfase.Male unknown.The new species can be easily distiguished from other species of the genus by having long tooth -shape apophysis on both posterior lateral sides of ventral plate of epigynum.4 Bathyphantes dipetalus sp. nov. (figs. 21~27)Holotype ♂ ,paratype ♀ , Daoxian, Aug. , 1987Male: Body length 1.71mm. Carapace 0.87mm long, 0.59mm wide; abdomen 0.98mm long, 0.61mm wide. Carapace dark brown PLE (0. 09mm) > ALE = PLE (0. 07mm) > AME (0.05mm), AME ~ ALE (0. 04) > PME ~ PME
出处
《蛛形学报》
2000年第2期86-93,共8页
Acta Arachnologica Sinica
基金
国家自然科学基金(39870105)
关键词
皿蛛科
斑皿蛛属
长指蛛属
指蛛属
新种
Linyphiidae Lepthyphantes Kaestneria Bathyphantes New species
