Calyptomyrmex wittmeri

Distribution based on Regional Taxon Lists
Oriental Region: Bhutan, India. Palaearctic Region: China.

Nomenclature

 * . Calyptomyrmex wittmeri Baroni Urbani, 1975a: 396, figs. 1, 5 (w.) BHUTAN.
 * Status as species: Bolton, 1995b: 83; Zhou, 2001b: 99; Guénard & Dunn, 2012: 40; Akbar & Bharti, 2015: 4 (redescription); Bharti, Guénard, et al. 2016: 33.

Description
Worker

Akbar & Bharti (2015): Head globular in full face view, with posterior margin more or less rounded. Clypeus with a broad bilobed fork-like cuticular projection on its anterior-most part. Masticatory margin with 5-teeth. Eyes with 6-8 ommatidia in greatest diameter. Antennae 12-segmented with 3-segmented club. Mesosoma short and stubby, forming a continuous arch in profile;promesonotal suture not distinct in dorsal view. Metanotal groove indistinct. Propodeal declivity concave.Propodeum in lateral view with broad triangular spines, somewhat divergent in dorsal view. Petiole penduculate, with stocky petiolar node. In dorsal view, anterior face of petiolar node straight while posterior face slightly concave in the middle. Gaster rounded; truncated anteriorly.

Mandibles' dorsal face striate along entire length. Dorsum of head having confused network of striations. Underlying surface distinctly punctuate. Mesosoma, petiolar and postpetiolar nodes with irregular, widely spaced striations, which are more prominent along sides of pronotum and dorsal surface of petiole. Gaster with a fine matte appearance. Hairs on head and body erect, slightly broader in posterior half with sharp or blunt tips. Colour dark-brown, the antennae and legs slightly lighter.

Measurements: CFW 0.11–0.12; CI 92.75–93.05: HL 0.61–0.64; HW 0.67–0.68; PetI 134–136; PetL 0.16–0.20; PetW 0.24–0.27; PronW 0.31–0.39; SI 50–52; SL 0.24–0.26.

References based on Global Ant Biodiversity Informatics

 * Akbar S. A., and H. Bharti. 2016. First verified record of the ant genus Calyptomyrmex (Hymenoptera: Formicidae) from India, along with a revised key to known Indomalayan species. Biodiversity Data Journal 3: e5420
 * Baroni Urbani C. 1975. Primi reperti del genere Calyptomyrmex Emery nel subcontinente Indiano. Entomologica Basiliensia 1:395-411.
 * Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
 * Tian M., L. Deharveng, A. Bedos, Y. Li, Z. Xue, B. Feng, and G. Wei. 2011, Advances of cave biodiversity survey: a result based mainly on invertebrates. Proceedings of the 17th National Congress of Speleology, Yinshuidong, Hubei, 1-3 Nov 20111, p 149-163.
 * Zhou S.-Y. 2001. Ants of Guangxi. Guangxi Normal University Press, Guilin, China, Guilin, China. 255 pp.