Acta Zootaxonomica Sinica, 30 (3) : 545- 548 (July, 2005) ISSN 1000 0739 动物分类学报 TWO NEW SPECIES OF THE GENUS CROSSODONTHINA (COLLEMBOLA , NEANURIDAE) FROM CHINA XIONG Yan1, 2, CHEN Li Qiao1, YIN Wen Ying3 1 Schoolof LifeScience, East ChinaNormal University, Shanghai　200062, China 2 Department of Biology, Hainan Normal University, Haikou　571158, China 3 Instituteof Plant Physiology & Ecology, Shanghai InstitutesforBiological Sciences, ChineseAcademyof Sciences, Shanghai　200032, China Abstract 　In the present study, two new species of Collembola, Crossodonthina hainana sp. nov. and Crossodonthina tiantongshana sp. nov. were describedrespectivelyfrom Hainanand Zhejiang Provinces, China. The newspecies Crossodonthi na hainana is easily discriminatedfrom all knownspecies of Crossodonthina by having2+2eyes andfurcular hump with 6se tae. C. tiantongshana issimilarto C. tridentiens Yue &Yin, 1999insomeaspects, but differsfromthelatterin havingpecu liar mandibles and maxillae. Key words　Collembola, Neanuridae, Crossodonthina, newspecies, China. 　　So far, seven species of the genus Crossodonthina Abdomen. Ventral tube with 4 + 4 setae (Fig. have been described in Asia. Three of them were re 12). Furcular hump with 6setae (Fig. 5). Male geni ported from China, including alatoserrata Yosii, tal plate having 34 setae (Fig. 10). Female genital 1965, formosana Yosii, 1965 and tridentiens Yue & aperture surrounded 22 setae (Fig. 11). Yin, 1999 In this paper, two new species from Tubercles and chaetotaxy. Body tubercles spheri Hainan and Zhejiang Provinces, China, were de cal. Dorsal ones not reduced. Abd. V with2+2tuber scribed. Type specimens are deposited in the collection cles, lateral one with 1sensoryseta. Apair of tubercles of Institute of Plant Physiology & Ecology, Shanghai on abd. Ⅵ, spherical, apart from each other. Body Institutes for Biological Sciences, Chinese Academy of tubercle distribution and dorsal chaetotaxy shown in Sciences. Figs. 1 2. Body macrochaetae long, uncoloured, smooth 1　Crossodonthina hainana sp. nov. (Figs 1 12) with rounded apex (Fig. 6). Common setae a little Body length up to 2 0 mm. shorter, pointed and smooth. Microsetae about one Colour. Red in living and wholly white in alco sixth of macrochaetae in length. Sensory setae feeble hol. and smooth. The four types of setae expressed as: Ⅰ, Head. Antennae shorter than head. Ant. Ⅲ& Ⅳ Ⅱ, Ⅲ……, 1, 2, 3 ……, i, ii, iii ……, and s. s. dorsally ankylosed. Ant. Ⅳbearing 3 apical bulbs and Dorsal chaetotaxy as: th. Ⅰ: Ⅰ…… (1 + Ⅰ) …… 8 curved blunt sensory setae. Ant. Ⅲorgan as a pair ( Ⅰ) ; th. Ⅱ: i (1 + Ⅰ) …… (i +1 + Ⅰ+s) …… of short rods in groove and 1 guardseta on ventralside (1 + Ⅰ+s) …… (2 + Ⅰ) ; abd. Ⅰ Ⅲ: (1 + Ⅰ) (Fig. 4). Eyes 2 + 2, unpigmented and apart from ……(i +1 + Ⅰ+s) …… (1 + Ⅰ) …… (1 + Ⅰ) ; each other (Fig. 7). Mandible with 2 incurved and abd. Ⅳ: (1+ Ⅰ) ……(i + Ⅰ+s) …… (i +1+ Ⅰ) feathered rami. Both ramifringed heavilyfrom base to ……(1+ Ⅰ) ; abd. Ⅴ: (i +1 + Ⅰ) …… (i +1 + end on inner side; shorter one with three promine3nt Ⅱ+s) ; abd. Ⅵ: ( Ⅲ). teeth near base (Fig. 3). Maxilla almost needle Holotype ♀, Dongzhaigang Mangrove Natural shaped, bifurcate; lacinia with 2 teeth and 1 thin Reserve (19°55′N, 110°34′E) , Hainan Province, 23 lamella. Galea also bifurcate, inner branch as smooth Jan. 2004, collected by XIONG Yan. Paratypes: 6 ♀ lamella, outer one with 2 teeth and 1 lamella on same ♀, 6 ♂♂, same data as holotype. side (Fig. 8). Remarks. The new species is distinctly separable 1 Thorax. Unguis dorsally carinate with 1 inner from all known species of the genus in possessing 2 +2 to1oth, basally granular and inner side with many eyes and 6 setae on furcular hump. tr1ansverse striae. Unguiculus absent (Fig. 9). 2 Theproject wassupportedbythe National NaturalScience Foundationof China (30130040, 30370169). Correspondingauthor; Email: [email protected];Telephoneand Faxnumbers:02154924180 Received23July2004, accepted8 Mar. 2005. 545 2 2 2 2 2 2 2 1 2 2 2 2 1 2 1 2 2 2 2 3 2 2 2 54　6　　　　　　　　　　　　　Acta Zootaxonomica Sinica动物分类学报　　　　　　　　　　　　　　　　Vol. 30　No. 3 Figs 1-12. Crossodonthina hainanasp. nov. 1 Head toth. Ⅱ. 2 Abd. ⅢⅥ. 3 Mandible. 4 Ant. Ⅳ(dorsal view). 5 Furcular hump. 6 Macrochaeta. 7 Eyes andtubercles. 8 Maxilla. 9 Hindclaw. 10 Male genitalplate. 11 Female genital aperture. 12 Ventral tube. Scale bars: 1 2=240μm; 3, 8, 12=20μm; 6=70μm; 4 5, 7, 9 11=40μm. Etymology. The newspecies is named after the lo (Figs 13 24) cality of types. Body length up to 3 0 mm. 2 　 Crossodonthina tiantongshana sp. nov. Colour. Bright red in living and white in alcohol. 1 1 1 2 1 1 1 1 1 1 1 1 1 1 2 2 2 2 1 2 1 July, 2005 熊　燕等: 中国颚毛　属二新种 (弹尾目,疣　科) 547 　 Figs. 13 24 Crossodonthina tiantonshanasp. nov. 13 Headtoth. Ⅱ. 14 Abd. ⅢⅥ. 15 Mandible. 16 Ant. Ⅳ (dorsal view). 17 Ventraltube. 18 Furcular hump. 19 Maxilla. 20 Hindclaw. 21 Macrochaeta. 22 Eyesandtu bercle. 23 Male genitalplate. 24 Female genital aperture. Scale bars: 13 14=400μm; 15, 22=40μm; 16 17, 20= 50μm; 18 19=25μm; 21, 23 24=60μm. Head. Antennae shorter than head. Ant. Ⅲand and 1 posterior on tubercle, anterior 2 touching each Ⅳdorsally ankylosed. Ant. Ⅳbearing 3 prominent other (Fig. 22). Mandible strongly developed, com apical bulbs, 8 long curved blunt sensory setae, and posed of 2longfeathered rami, and 1lamella. Lamella some erect setae. Sensory organ of Ant. Ⅲcomposed with five teeth, mid one bifurcate, basal one much of 2 small rods in 2 separate grooves and 1 guard seta thinner and longer than others (Fig. 15). Maxilla al (Fig. 16). Eyes 3 +3, lightly pigmented, 2 anterior most styliform, lacinia with 1 apical tooth and 1 tiny 2 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 2 2 2 2 2 2 54　8　　　　　　　　　　　　　Acta Zootaxonomica Sinica动物分类学报　　　　　　　　　　　　　　　　Vol. 30　No. 3 basal tooth. Galea bifurcate, inner branch finely ci tween them are as follows Table 1 liated on one side, outer one styliform (Fig. 19). Table 1 Comparison between Crossdonthina tiantongshana Thorax. Unguis dorsally carinate and with 2 sp. nov. and Crossodonthina tridentiens Yue &Yin, 1999 minute and 1 large inner teeth. Inner side of unguis C. tridentiens C. tiantongshana Characters basally granulated and with many transverse striae. Yue &Yin, 1999 sp. nov. Mandible Unguiculus absent (Fig. 20). Rami 3ciliate 2feathered Abdomen. Ventral tube with 4 + 4 setae (Fig. Lamellateeth 3 5, basalteeththinandlong 17). Furcular hump low, rounded, with 3setae (Fig. Maxillarlacinia Apicalteeth 2 1 18). Male genital plate having 19 setae (Fig. 23). Basaltooth 0 1 Female genital aperture surrounded by 14 setae (Fig. Unguisinnerteeth 1, large 1largeand2 minute Abd. V tubercles 2+2 3+3 24). Tubercles and chaetotaxy. Dorsal tubercles of Etymology. The newspecies is named after the lo body not reduced. Abd. Ⅴwith 3 +3 tubercles. Dor cality of types. sal tubercles round, with 2 microsetae and 1 Acknowledgments 　We owe our very cordial thanks macrochaeta. Subdorsal tubercles hemispherical, with to Mr. XIE Rong Dong for his help in our taxonomic 1 sensory seta. Tubercles of abd. Ⅵspherical, a little work. Our thanks are given to Mr. YANG Yi Ming, apart from each other. Tubercle distribution and dor WEI Qing, PENG Shi Ming and Mrs. XIA Yun Fan sal chaetotaxy shown in Figs. 13 14 for their useful help in our work. We received invalu Body macrochaetae long, almost straight and able support and assistance for this research from slightly serrated on whole length, ending in a point Tiantong Ecological Experimental Station, Institute of apex ( Fig 21). Microsetae about one sixth of Environmental Science, East China Normal Universi macrochaetae in length. Dorsal chaetotaxy as: th. Ⅰ: ty. Ⅰ…… (i + Ⅰ) …… ( Ⅰ) ; th. Ⅱ, Ⅲ: (i + Ⅰ) ……i (1+ Ⅰ+s) …… (1 + Ⅱ+s) …… (1 + Ⅰ) ; REFERENCES abd. Ⅰ Ⅲ: (1 + Ⅰ) ……i (1 + Ⅰ+s) …… (1 + Lee, B. H. 1973 tudedelafaunecoréenedesinsectsCollembola. Ⅰ. Ⅰ) ; abd. Ⅳ: (i + Ⅰ) …… (i + I +s) …… (1 + List desCollembolesdeCoréeetdescriptiondetriosespécesnouvelles. Ⅱ) …… (1+ Ⅰ+s) ; abd. V: (ii + Ⅰ) …… (s) Revueécol. Biol. Sol. , 10: 435439 Yue, Q Yand Yin, W Y1999 Twonewspeciesof Collembola (Arthro …… (i + Ⅱ) ; abd. Ⅵ: ( Ⅲ). pleona: Neanuridae, Pseudachorutidae) from Shanghai, China. Holotype ♀, Mt. Tiantong (29°48′N, 121°47′ Ent. Sin. , 6 (3) : 222226 Yosii, R. and Lee, C. E. 1963 On some Collembola of Korea, with E, alt. 350 m) , Zhejiang Province, 23 Sep. 2003, noteson the genus Ptenothrix. Contr. Biol. Lab. Kyoto Univ. , collected by XIONG Yan. Paratypes 7 ♀♀, 1 ♂, 15: 137 same data as holotype. Yosii, R. 1965 On some Collembola of Japan and adjacent countries. Contr. Biol. Lab. KyotoUniv. , 19: 1720 Remarks. The newspecies issimilar to Crossodon Yosii, R. 1995 Identity of some Japanese Collembola Ⅲ. Acta Zool. thina tridentiens from Shanghai. The differences be AsiaeOrient. , 3: 5068 中国颚毛　属二新种 (弹尾目, 疣　科) 熊　燕1,2　陈立侨1　尹文英3 1. 华东师范大学生命科学学院　上海　200062 2. 海南师范学院生物系　海口　571158 3. 中国科学院上海生命科学研究院, 植物生理生态所　上海　200032 摘　要　记述了采自海南和浙江省的弹尾目疣　科颚毛　属 的上颚有两条长的、羽毛状分支和具5齿的片状突起, 且基 Crossodonthina Yosii, 2 新种, 海南颚毛　 C. hainana sp. 部齿长而细; 下颚的内颚叶端部及近基部各有1齿; 新种腹 nov. 和天童颚毛　 C. tiantongshana sp. nov.。海南颚毛　 部第5节1有3+3个疣状突起, 而 C. tridentiens有2+2个疣 头部每侧有眼2个, 弹器痕上有6根刚毛, 非常容易与本属 状突起; 新种的爪部内侧有2个小齿, 1个大齿, C. tride1n 其它已知种类分开。天童颚毛　与上海产的 Crossodonthina tiens只有1大齿。模式标本保存于上海生命科学研究院, 植 tridentiens Yue &Yin, 1999相似, 两者的主要区别是: 新种 物生理生态所昆虫标本馆。 关键词　弹尾目 (纲) , 疣　科, 颚毛　属, 新种, 中国. 中图分类号　Q969 14 2 1 2 2 1∗ 2 2 1 2 2 1 2 2 2 22 1 2 2 1 1 2 2 1 1 2 2 1 2 1 2 1 2 2 2 2 1