Satria Rijal, Kurushima Hiroaki, Herwina Henny, Yamane Seiki, Eguchi Katsuyuki
Departments of Biological Sciences, Graduate School of Science and Engineering, Tokyo Metropolitan University, Tokyo, Japan; Email:
Departments of Biological Sciences, Graduate School of Science and Engineering, Tokyo Metropolitan University, Tokyo, Japan; Email: unknown.
Zootaxa. 2015 Nov 24;4048(1):1-36. doi: 10.11646/zootaxa.4048.1.1.
The ant genus Odontomachus Latreille is reviewed for Sumatra, the sixth largest island in the world and located in western Indonesia. Previously three species were recorded from the island: O. simillimus F. Smith, O. rixosus F. Smith, and O. latidens Mayr. We add two species to the fauna, O. procerus Emery stat. nov and Odontomachus minangkabau sp. nov. The new species belongs to O. rixosus species group, and it is morphologically most similar to O. rixosus and O. pararixosus Terayama & Ito. However, it can be separated from the latter two by its large body (HL 3.13-3.55 mm, WL 4.15-4.65 mm), the masticatory margin with 11-14 denticles, and dark-colored body. Odontomachus latidens subsp. sumatranus Emery is newly synonymized with O. procerus. The castes and sexes of the known species are also described, including the first descriptions of the male for O. latidens, O. procerus, and O. rixosus. A key to the Sumatran species based on the worker caste is provided, and the bionomics of each species is summarized.
对分布于世界第六大岛屿、位于印度尼西亚西部的苏门答腊岛的齿猛蚁属（Odontomachus Latreille）进行了综述。此前该岛记录有3个物种：相似齿猛蚁（O. simillimus F. Smith）、刺齿猛蚁（O. rixosus F. Smith）和宽齿猛蚁（O. latidens Mayr）。我们在此动物区系中新增了2个物种：长齿猛蚁（O. procerus Emery stat. nov）和米南卡保齿猛蚁（Odontomachus minangkabau sp. nov）。新物种属于刺齿猛蚁物种组，在形态上与刺齿猛蚁和巴拉刺齿猛蚁（Terayama & Ito）最为相似。然而，它可通过其较大的体型（头长3.13 - 3.55毫米，腰长4.15 - 4.65毫米）、具11 - 14个小齿的咀嚼缘以及深色的身体与后两者区分开来。宽齿猛蚁苏门答腊亚种（Odontomachus latidens subsp. sumatranus Emery）被新认定为长齿猛蚁的同物异名。还描述了已知物种的品级和性别，包括首次对宽齿猛蚁、长齿猛蚁和刺齿猛蚁雄性的描述。提供了基于工蚁品级的苏门答腊岛物种检索表，并总结了每个物种的生物学特性。
