Acta Zootaxonomica Sinica , 31 (4) : 870 - 873 (Oct . , 2006) ISSN 100020739 动物分类学报

ATAXONOMICSTUDYONTHEANTGENUS PHEIDOLOGETON MAYR ( ,FORMICIDAE,) FROMCHINA

ZHOU Shan2Yi1 , ZHAO Shuang2 , J IA Feng2Long2 11 College of L if e Science , Guangxi Normal U niversity , Guilin 541004 , ; syz hou @mailbox . gx nu. edu. cn 21 Instit ute of Entomology , Zhongshan U niversity , Guangz hou 510275 , China

Abst ract Ten and three subspecies of the genus Pheidologeton Mayr are treated in the paper. One of them is described as new to science, i. e. P. zengchengensis sp . nov. A key based on major worker caste to the known Chinese species of the genus is p resented. Key wor ds Hymenoptera , Formicidae, Pheidologeton , , China.

The ant genus Pheidologeton , was established by HL ( Head Length ) ,HW ( Head Width ) ,CI Mayr in 1862 based on the t ype species Oecodoma ( Cephalic Index = HW × 100/ HL ) ,SL ( Scape diversa Jerdon ( = Pheidologeton diversus (Jerdon )) . Length) ,SI ( Scape Index = SL × 100/HW ) ,PW The genus consists of 27 species , 16 subspecies and 2 ( Pronotal Width ) , AL ( Alitrunk Length ) . All fossil species in the world (Bolton , 1995) , most species measurements are expressed in mm.

distributed in the Indo2Australian, Oriental and Key to the known species of the ge nus Pheidologeton Mayr Af rotropical regions. The first Chinese species of the i n Chi na (Base d on major worker caste) genus , P. vespillo , was described by Wheeler in 11 Propodeal spines long , longer than, or at least more than half of the 1921 , then in 1930 he reported 3 species and 3 distance between the base of the two spines ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 2 Propodeal spines short , less than 1/ 3 length of the distance between the subspecies, i. e. P. aff i nis , P. diversus , P. base of the two spines ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8 vespillo, P. diversus subsp . draco , P. diversus 21 The maximum workers with their total length 10 to 11 mm ⋯⋯⋯ subsp . f ict us , and P. diversus subsp . laoti n us. Chou ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. divers us s ubsp . fict us Forel and Terayama recorded 4 species and 1 subspecies in The maximum workers with their total length more than 14 mm ⋯ , added 2 species, i. e. P. dentiviris and P. ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3 31 Head transversely striate in front ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ ya noi , to Chinese ant fauna except the species and ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. divers us s ubsp . laoti nus Sa ntschi subspecies known in the mainland. While the species Head longitudinally striate in front ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 P. dentiviris was doubtful because it was described b y 41 Occipital lobes of head longitudinally striate ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ Forel on the male only in 19131Emery suggested that ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. divers us s ubsp . draco Sha ntschi Occipital lobes of head transversely striate ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5 P. dentiviris was p robably the male of P. ya noi , 51 Propodeal spines curved forward and inclined ⋯⋯ P. ya noi Forel Wheeler suggested that it did not even belong to the Propodeal spines directly backward or erect ⋯⋯⋯⋯⋯⋯⋯⋯⋯ 6 genus Pheidologeton . Li and Tang described a species 61 Propodeal spines backward, mesoscutellum slightly convex, with 8 P. na nni ngensis f rom Guangxi in 19861Zhou and yellow hairs ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. na nni ngensis Li et Ta ng Zheng studied the genus in Guangxi and described 3 Propodeal spines erect , mesoscutellum very convex, with more than 10 yellow hairs ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 7 species, i. e. P. melasolen us , P. lati nodus and P. 71 Front of head bearing a single ocellus; petiolar node with its upper trechideros in 19971When we studied the deposited border concave; color dark chestnut2brown ; body very coarsely striate in the Collection of Zhon gshan Universit y , a ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. divers us (J er don) new species was found. Ten species and three Front of head without ocellus; petiolar node not concave on its upper border; color chestnut2brown but lighter; striation on body much finer subspecies are recorded in China up to date. A key ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ P. affi nis (J er don) based on major worker caste to the known Chinese 81 Head and body smooth and shining in most part ⋯⋯⋯⋯⋯⋯⋯ 9 species and subspecies of the genus is given except for Head and body coarsely striate ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 11 an uncertain species , P. dentiviris Forel. 91 Propodeal spines laterally compressed ; petiolar node broadly rounded The measurements and indices used in the paper above in profile view ⋯⋯⋯⋯⋯⋯ P. lati nodus Zhou et Zheng Propodeal spines thick at base and straight , not compressed ; petiolar are as defined by Bolton (1995) : TL ( Total Length) , node narrowed above, more or less triangular in profile view ⋯⋯ 10

This study is supported by the National Natural Sciences Foundation of China (30360013) . Received 23 Mar. 2006 , accepted 8 Jaly 2006. 870