Opamyrma Yamane, Bui et Eguchi, 2008

Eguchi, Katsuyuki, Viet, Bui Tuan & Yamane, Seiki, 2014, Generic Synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part II — Cerapachyinae, Aenictinae, Dorylinae, Leptanillinae, Amblyoponinae, Ponerinae, Ectatomminae and Proceratiinae, Zootaxa 3860 (1), pp. 1-46 : 24-25

publication ID

https://doi.org/ 10.11646/zootaxa.3860.1.1

publication LSID

lsid:zoobank.org:pub:FDFD1014-8DDA-4EED-A385-95FA4F964CFC

DOI

https://doi.org/10.5281/zenodo.6124675

persistent identifier

https://treatment.plazi.org/id/03F8878B-FF96-FFCC-F5EA-F8D8459DFB87

treatment provided by

Plazi

scientific name

Opamyrma Yamane, Bui et Eguchi, 2008
status

 

Opamyrma Yamane, Bui et Eguchi, 2008

Taxonomy. The genus Opamyrma was established for a single species, O. hungvuong , and is morphologically very close to Apomyrma known from the Afrotropical region ( Yamane et al. 2008).

Morphology. Worker presumably monomorphic; body long and slender, with long legs; head in full-face view subrectangular, and somewhat flattened dorsoventrally; preoccipital carina complete, almost encircling the head slightly before its posterior margin; frontal lobe, frontal carina and antennal scrobe absent; median part of clypeus rather clearly divided into posterior horizontal portion and anterior steep slope; the posterior portion distinctly separated from frons with a continuous carina, and broadly inserted between antennal sockets; lateral part of clypeus narrow from front to back; mandible slender, with long but bluntly tapered apical tooth followed by a trapezoidal lobe and three inconspicuous teeth; labrum on its outer face with at least two rows of peg-like denticles; eye absent; antennal sockets completely exposed in full-face view, located in a large, roundly excavated area whose anterior wall is steep just behind posterior margin of clypeus; antenna 12-segmented, gradually incrassate from segment II to XII; mesosoma slender, in lateral view flattened dorsally; promesonotal suture present and flexible; metanotal groove absent dorsally; propodeum unarmed; orifice of propodeal spiracle round, situated relatively low on lateral face of propodeum; propodeal lobe much reduced; mid- and hind tibiae each with a reduced barbulate anterior spur in front of a well-developed pectinate posterior spur; waist consisting of a single segment (petiole); petiole extremely elongate, virtually without anterior peduncle, narrowly attached to abdominal segment III; tergosternal sutures of petiole present; petiolar spiracle located anteriorly on lateral face of petiole at its mid-height; gaster (consisting of abdominal segments III–VII) extremely elongate; abdominal segment III above helcium with free anterior face; spiracles on segments V–VII concealed by the preceding segments; segment VII longest among the segments III–VII; pygidium and hypopygium unarmed laterally and posteriorly.

Differentiation. The worker of Opamyrma is easily distinguished from that of the other Vietnamese genera of Amblyoponinae by a combination of the following features: petiole narrowly attached to abdominal segment III (gastral segment I); abdominal segment III above helcium with free anterior face; frontal lobe completely absent, thus antennal socket in full-face view fully exposed.

Vietnamese species (1 sp.).

O. hungvuong Yamane, Bui et Eguchi, 2008 . Type locality: Huong Son Forest (so far been known only from the type series).

Bionomics. Unknown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Loc

Opamyrma Yamane, Bui et Eguchi, 2008

Eguchi, Katsuyuki, Viet, Bui Tuan & Yamane, Seiki 2014
2014
Loc

O. hungvuong

Yamane, Bui et Eguchi 2008
2008
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