Technomyrmex convexifrons

Nothing is known about the biology of .

Identification
Bolton (2007) - A member of the Technomyrmex strenuus group. Most closely related to Technomyrmex strenuus but that species does not have elevated setae on the tibiae. The eyes of convexifrons appear to be slightly larger than in strenuus and set slightly further forward, compare OI and EPI above with strenuus OI 20 - 24, EPI 80 - 95, though these results may not be trustworthy because of the paucity of material. The mesonotal and propodeal dorsa of strenuus are more strongly and intensely sculptured than in convexifrons and in profile the propodeal dorsum rounds into the declivity in convexifrons, whereas the two surfaces meet in a blunt angle in strenuus; see notes under strenuus.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Indonesia.

Nomenclature

 *  convexifrons. Technomyrmex convexifrons Karavaiev, 1926d: 443 (w.) INDONESIA (Sumatra). See also: Bolton, 2007a: 77.

Worker
Bolton (2007) - TL 2.6, HL 0.60, HW 0.57, SL 0.51, PW 0.37, WL 0.68. Indices: CI 95, SI 89, OI 26, EPI 72, DTI 119.

Frontal carina with 2 - 3 setae to the level of the anterior margin of the eye. Posterior to this with 4 - 5 pairs on the dorsum itself and with an additional 4 - 6 setae across the posterior margin. Longest setae on head at least equal to maximum diameter of eye, usually somewhat longer. Scapes without setae. Dorsum of head glassy smooth, unsculptured except for pits from which setae arise, and with sparse pubescence that does not conceal the surface. In full-face view the anterior clypeal margin is almost transverse, the posterior margin of the head very feebly concave medially; eyes break the outline of the sides of the head. Pronotal dorsum mostly smooth, with only vestiges of sculpture; dorsal mesonotum weakly microreticulate; propodeal dorsum more densely microreticulate to minutely reticulate-punctulate. All dorsal surfaces of mesosoma, including propodeum, with numerous setae; propodeal declivity with at least 1 marginal pair. With propodeum in profile the dorsum rounds into the declivity. Dorsal (outer) surfaces of middle and hind tibiae each with at least one elevated long seta present, in the apical half; length of the setae slightly less than the tibial width. Gastral tergites 1 - 4 each with numerous setae, the longest of them longer than the maximum diameter of the eye. Gastral tergites 1 - 2 unsculptured, smooth and polished; pubescence on these sc1erites sparse. Head and gaster dark brown; most of mesosoma slightly lighter, the pronotum slightly lighter than the remainder and the propodeum about the same colour as the gaster.

Type Material
Bolton (2007) - Syntype workers, Indonesia: Sumatra, Tapung kiri, no. 2756 (0. John) [examined].

Only a single card triangle, on a pin originally of three syntypes, retains a complete specimen. Of the upper syntype only the gaster remains. The middle specimen is complete but has the head severely crushed. The lower mount has no specimen.

References based on Global Ant Biodiversity Informatics

 * Bolton B. 2007. Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste. Contributions of the American Entomological Institute 35(1): 1-150.
 * Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
 * Karavaiev V. 1926. Ameisen aus dem Indo-Australischen Gebiet. Treubia 8: 413-445.
 * Shattuck S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112: i-xix, 1-241.