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Species: Anochetus pangens   (Walker, 1859) 

Classification:
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Taxonomic History (provided by Barry Bolton, 2018)

Formica pangens Walker, 1859 PDF: 371 (m.) SRI LANKA. Indomalaya. AntCat AntWiki HOL

Taxonomic history

Combination in Euponera (Brachyponera): Donisthorpe, 1932b PDF: 575; in Anochetus: Brown, 1978c: 558.

Distribution:

   (According to curated Geolocale/Taxon lists)
Indomalaya Region: Sri Lanka

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Brown, WL Jr.,, 1978, Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, tribe Ponerini, subtribe Odontomachiti. Section B. Genus Anochetus and bibliography., Studia Entomologica 20, pp. 549-638

A. pangensHNS

is another species described from a single male [BMNH-London] from «Ceylon», and assigned later by Donisthorpe to Euponera (Brachyponera)HNS, I believe in error.

TL 3.9, HL 0.63, HW (across compound eyes) 0.80, WL 1.40, W middle ocellus 0.01 mm.

Eyes very large, taking up most of sides of head, but each separated from the nearest lateral ocellus by a space of 0.12 mm. Mandibles minute (L 0.06 mm), triangular, pointed at apex, basidorsal pocket or basin present. Frontal sulcus conspicuous. Head minutely shagreened but shining. Ocelli spaced 0.09 mm between median and laterals.

Trunk moderately bulky, with high-domed scutellum; scutum with only the stem of the notaular Y discernible; parapsidal lines moderately distinct. Dorsum of trunk minutely rugulose, opaque to subopaque; sides of pronotum and mesopleura smooth and shining, as are also node and gaster.

Petiolar node as seen from the side low, triangular, with slightly convex anterior and posterior slopes, and narrowly rounded apex; seen from front, the node is sub-rectangular, wider than high, with wide, straight apical margin and blunt dorsolateral angles. Gaster not noticeably constricted behind first segment in either side view or dorsal view.

Legs slender; apical spurs of middle and hind tibiae 2,2, the median spurs both pectinate, but the one on the middle tibia much smaller than that on the hind tibia; lateral spurs minute on both legs. Femora and coxae shining, with fine appressed pubescence; tibiae and tarsi finely and densely punctulate, opaque or nearly so.

Forewings about 3.2 mm long, with all "ponerine veins" present.

Terminalia partly retracted; pygidium broadly rounded, but arched in the middle over the proctiger; hypopygium transverse, short, broadly emarginate; parameres narrowly triangular, entire, tapering each to an acute apex, and as seen in end-on view, weakly curved mesad. Aedeagus with a strongly rounded dorsal crest and narrow lateral flanges, each flange ending in a short, sharp point apicad. Volsellae long, surpassing apices of aedeagal valves, the digiti directed ventrad and conspicuous in side view beneath parameres; each cuspis oblique, directed more or less caudo-dorsad and resting in the inside curve of its respective paramere. The most unusual feature is the reduced and emarginate hypopygium.

Color of body dull yellow, head and anterior half of gaster more brownish.

Of the species known from Sri Lanka in the worker caste, the pangensHNS male might best correspond to longifossatusHNS.

Specimen Habitat Summary

Type specimens: Holotype of Anochetus pangens: casent0902445



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