Open AccessSystematics and biogeography of the ant genus Crematogaster L und subgenus Orthocrema S antschi in A sia ( H ymenoptera: F ormicidae)
Author(s) -
Hosoishi Shingo,
Ogata Kazuo
Publication year - 2016
Publication title -
zoological journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.148
H-Index - 83
eISSN - 1096-3642
pISSN - 0024-4082
DOI - 10.1111/zoj.12330
Subject(s) - subgenus , biology , systematics , monophyly , biogeography , zoology , allopatric speciation , taxonomy (biology) , genus , ecology , phylogenetic tree , clade , population , biochemistry , demography , sociology , gene
The subgenus Orthocrema of the ant genus Crematogaster is a well defined group and diverse in the tropical A sia. Its systematics has remained poorly understood because of a lack of modern revisionary work. Crematogaster ( Orthocrema) is revised for the A sian region, and 27 species including ten new species are recognized. Five species groups: the C . baduvi group (4 spp.); the C . binghamii group (3 spp.); the C . biroi group (10 spp.); the C . moatensis group (1 sp.); the C . quadriruga group (9 spp.) are established based on worker caste morphology. A key to A sian species of the subgenus Orthocrema based on the worker caste is given. Phylogenetic relationships of A sian Orthocrema are analyzed. The analysis revealed that the C . baduvi ‐, C . binghamii ‐, and C . biroi groups are monophyletic, and that the allopatric distribution patterns of closely related species imply that A sian Orthocrema is composed of relatively young taxa. There have been at least three west‐to‐east dispersal events across W allace's line in the C . baduvi ‐, C . quadriruga ‐ and C . biroi groups. © 2016 The Linnean Society of London