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A new species of the ant genus Leptogenys Roger, 1861 (Hymenoptera: Formicidae) from India.

ABSTRACT: There are no well defined Leptogenys species groups based on the worker morphology from the Oriental region Arimoto (2017). Leptogenys chinensis forms a complex species group with closely related species having little morphological changes Wilson (1958), Sarnat and Economo (2012). From the Oriental region, there are currently 9 species belonging to the L. chinensis group. The group is diagnosed by having edentate masticatory margin of the mandible, smooth body surface, elongate antennae and metallic green cuticle. The species included are: L. assamensis; L. chinensis; L. confucii; L. kraepelini; L. laeviterga; L. pangui; L. peuqueti; L. stenocheilos and L. sunzii.Leptogenys bhartii sp. n., a new ponerine ant species from Western Himalayas, India, is described and illustrated based on the worker caste. The new species belongs to the Leptogenys chinensis group and mostly resembles Leptogenys chinensis (Mayr, 1870). In the L. chinensis group, the original description of L. stenocheilos is insufficient as it lacks information about type material. As there is no further detailing of this species in the available literature, it is difficult to ascertain its valid status Xu and He (2015) and is therefore, considered a species inquirenda herewith. A revised key to the known species of chinensis-group in the Oriental Region is provided.

SUBMITTER: Wachkoo AA

PROVIDER: S-EPMC6053473 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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A new species of the ant genus <i>Leptogenys</i> Roger, 1861 (Hymenoptera: Formicidae) from India.

Wachkoo Aijaz Ahmad AA Maqbool Amir A Akbar Shahid Ali SA Sharaf Mostafa Rezk MR

Biodiversity data journal 20180712 6

<h4>Background</h4>There are no well defined <i>Leptogenys</i> species groups based on the worker morphology from the Oriental region Arimoto (2017). <i>Leptogenys chinensis</i> forms a complex species group with closely related species having little morphological changes Wilson (1958), Sarnat and Economo (2012). From the Oriental region, there are currently 9 species belonging to the <i>L. chinensis</i> group. The group is diagnosed by having edentate masticatory margin of the mandible, smooth ...[more]

PMID: 30034264

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Project description:The genus Proceratium Roger, 1863 contains cryptic, subterranean ants that are seldom sampled and rare in natural history collections. Furthermore, most Proceratium specimens are extremely hairy and, due to their enlarged and curved gaster, often mounted suboptimally. As a consequence, the poorly observable physical characteristics of the material and its scarcity result in a rather challenging alpha taxonomy of this group. In this study, the taxonomy of the Chinese Proceratium fauna is reviewed and updated by combining examinations of traditional light microscopy with x-ray microtomography (micro-CT). Based on micro-CT scans of seven out of eight species, virtual 3D surface models were generated that permit in-depth comparative analyses of specimen morphology in order to overcome the difficulties to examine physical material of Proceratium. Eight Chinese species are recognized, of which three are newly described: Proceratium bruelheidei Staab, Xu & Hita Garcia, sp. n. and P. kepingmaisp. n. belong to the P. itoi clade and have been collected in the subtropical forests of southeast China, whereas P. shoheisp. n. belongs to the P. stictum clade and it is only known from a tropical forest of Yunnan Province. Proceratium nujiangense Xu, 2006 syn. n. is proposed as a junior synonym of P. zhaoi Xu, 2000. These taxonomic acts raise the number of known Chinese Proceratium species to eight. In order to integrate the new species into the existing taxonomic system and to facilitate identifications, an illustrated key to the worker caste of all Chinese species is provided, supplemented by species accounts with high-resolution montage images and still images of volume renderings of 3D models based on micro-CT. Moreover, cybertype datasets are provided for the new species, as well as digital datasets for the remaining species that include the raw micro-CT scan data, 3D surface models, 3D rotation videos, and all light photography and micro-CT still images. These datasets are available online (Dryad, Staab et al. 2018, http://dx.doi.org/10.5061/dryad.h6j0g4p).

Dataset Information

A new species of the ant genus Leptogenys Roger, 1861 (Hymenoptera: Formicidae) from India.

Publications

A new species of the ant genus <i>Leptogenys</i> Roger, 1861 (Hymenoptera: Formicidae) from India.

Similar Datasets

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