Hymenoptera, Formicidae
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Acta Zootaxonomica Sinica , 31 (1) : 206 - 207 (J an. , 2006) ISSN 100020739 动物分类学报 VOMBISIDRIS BOL TO N ( HYMENOPTERA, FORMICIDAE ) , A N EW RECORD GENUS IN CHINA, WITH DESCRIPTION OF A NEW SPECIES HUAN G Jian2Hua, ZHOU Shan2Yi 3 College of L if e Science , Guangxi Normal U niversity , Guilin 541004 , China Abst ract The ant genus Vombisidris Bolton is recorded in China for the first time. A new species of the genus , V. umbrabdomina sp. nov. , is described. The new species is close to V. nahet Bolton but differs in sides of mesonotum slightly convex, not obtusely angular in dorsal view, antennal scape longer , colour yellowish2brown , gaster dark brown, darker than head and alitrunk. Key wor ds Hymenoptera , Formicidae, Vombisidris , new record genus , new species. The ant genus Vombisidris , described by Bolton Eyes at or slightly in front of the midlength of the sides in 1991 , is a small genus in the subfamil y of the head. Antennae 122segmented with a strongly Myrmicinae, containing only 13 species in the world defined 32segmented club. Sides of head usuall y with a (Bolton , 1991 ; Zacharias, 2004 ) . Among the 13 strong sinuate subocular groove. Alitrunk elongate and known species , 2 are distributed in Pap ua New low in p rofile , promesonotum not domed2convex ; Guinea , 3 in East Malaysia , 3 in Indonesia, 2 in p ropodeum bispinose , p ropodeal spiracle high on side , Australia , 2 in India, and 1 in Bruner. This genus is at about midlength of sclerite, distinctl y separated predominantly arboreal and ranges from India to from the small metapleural gland bulla. Metapleural Queensland, with the majority of species in Malaysia lobes small and rounded. Petiole pedunculate. and Indonesia. A new species of the genus is described Postpetiolar sternite reduced, small in p rofile (Bolton , in this paper. The t ype specimen is deposited in the 1991) . Insect Collection, Guangxi Normal Universit y , Vombisi dris umbrabdomina sp . nov. ( Figs1122) Guilin, China. The measurements and indices used in this paper Holotype worker. TL 412 , HL 0182 ,HW 0172 , are as defined in Bolton (1983) : head length ( HL ) , CI 87 , SL 0160 ,SI 83 , PW 0150 , AL 1125 , ED 0120 head width ( HW) , cephalic index (CI) , scape length (0128 × HW) and with 10 ommatidia in the longest (SL ) , scape index ( SI ) , pronotal width ( PW ) , row. Head longer than broad, sides feebl y convex , alitrunk length (AL) , eye diameter ( ED) . median occipital margin weekly convex, occipital All the measurements are expressed in mm. corners rounded. Mandibles and their teeth are as in diagnosis of the genus. Eyes moderate large, situated Vombisi dris Bolt on New record to China slightly in front of the midlength of the sides of the Vombisidris Bolton , 1991. Syst . Entomol . 16 ∶1.Type species : V. philax Bolton , 1991. Indonesia. head. Faint vestiges of frontal carinae p resent , extending back from the posterior extremities of the Diagnosis. Palp formula 5 , 3. Mandibles short frontal lobes to beyond the level of the posterior triangular, the masticator y margin with 5 teeth , margins of the eyes. Subocular groove complete , uniquely arranged. The large apical tooth followed by running from the mandibular insertion to the two smaller teeth (third smaller than second ) , then a anteroventral margin of the eye , then passing through long diastema and two small basal teeth. Len gth of a shallow angle and continuing along the sides to the diastema is at least equal to length of margin occupied lateroccipital margin, where the subocular groove ends by the apical group of three teeth. Anterior cl ypeal slightly concave. Antennal scape relatively long ( SI margin lacking an isolated median seta, instead with a 83) .Eyes relatively large ( 0128 × HW ) with 10 pair of setae that straddle the midpoint. Frontal lobes ommatidia in the longest row. Alitrunk elongate and narrow. Torulus concealed b y frontal lobes in full face low in profile, mesonotum unarmed. In dorsal view, view. Frontal carinae and antennal scrobes absent. This study was supported by the National Natural Science Fundation of China (36360013) and Science Fundation of Guangxi ( GKJ0236015) . 3 Corresponding author , e2mail : syzhou @mailbox. gxnu.edu.cn Received 15 J une 2005 , accepted 7 Sep . 2005. 206 Jan. , 2006 黄建华等 : 中国新纪录属犁沟蚁属 (膜翅目 , 蚁科) 及一新种记述 702 sides of mesonotum slightly convex; metanotal groove yellowish2brown , gaster dark brown, darker than head shallow but distinct. In p rofile , p ropodeal spines long and alitrunk. and slightly curved down at tip , about 113 times as Holotype. Worker, Zhangjiajie National Natural long as the distance between their bases. Le gs Reserve, Hunan Province (29°10′N, 110°25′E) , 13 relatively long, maximum length of hind femur (0172 Aug. 2004 , collected from shrubber y with insect2net mm) as long as head width. by HUAN G Jian2Hua. In dorsal view, petiolar node distinctl y longer This new species is similar to V . nahet Bolton , than wide and sides of the node almost strai ght , dorsal but differs in sides of mesonotum sli ghtly convex, not face of the node moderatel y convex , petiolar spiracle at obtusely angular in dorsal view, antennal scape the midlength of the peduncle, dorsal face of relatively longer , colour yellowish2brown , gaster dark postpetiolar node roundl y convex. First gastral tergite brown, darker than the head and alitrunk. smooth, except for a band of short basigastral costulae Acknowle d ge me nt We would like to thank feebly present immediately behind the post petiole, the Professor Merry Zacharias (Ashoka Trust for Research spaces between the basigastral costulae smooth. Head, in Ecology and Environment, India ) for offering his alitrunk , petiole and postpetiole reticulate2rugose. papers, and Professor CHEN Bin ( College of Plant Propodeal declivit y with 3 fine transverse rugulae Protection, Southwest Agricultural Universit y) for his between the spines and remaining portion smooth and supervision on PhD research work of the first author. shining. Gaster smooth. Erect or suberect hairs densel y present on dorsal surface head and whole bod y. Colour Figs1122. Vombisidris umbrabdomina sp. nov. worker. 1. Head in full face view. 2. Body in profile view. ( Hymenoptera : Formicidae) . Systematic Entomology , 16 : 1213. R EFER EN CES Zacharias, M. 2004. Vombisidris humboldticola ( Hymenoptera : Formicidae) : a new arboreal ant species from an Indian ant plant . Bolton , B. 1991. New myrmicine ant genera from the Oriental Region Current Science , 87 (10) : 1 33721 338. 中国新纪录属犁沟蚁属 (膜翅目 , 蚁科) 及一新种记述 黄建华 周善义 广西师范大学生命科学学院 桂林 541004 摘 要 记述中国新纪录属犁沟蚁属 Vombisidris Bolton 及 1 钝角状 , 触角柄节较长 , 体黄褐色 , 后腹部深褐色 , 深于头 新种暗 腹 犁 沟 蚁 V. umbrabdomina sp . nov. 。新 种 与 V. 和并腹胸。模式标本保存于广西师范大学昆虫标本室。 nahet Bolton 相似 , 但中胸背板背面观两侧轻度隆起 , 不呈 关键词 膜翅目 , 蚁科 , 犁沟蚁属 , 新纪录属 , 新种. 中图分类号 Q969155412.