Genus Convexitermes · 凸白蚁属

Morphology

The descriptions below are an adaptation of the original genus-level accounts; terms follow the meaning of the source, and the original is not transcribed verbatim.

Diagnostic characters

In the key, the alates and soldiers of this genus run in different main branches. In the alate, the 1st marginal tooth of the mandible is distinctly larger than the 2nd, the head is broadly oval and usually narrows anteriorly, and the fontanelle lies far back on the head; the soldiers are small species with no apical part on the mandibles, a short, thick, conical nasus, 11-segmented antennae and a convex frontal profile. On this basis the soldier is distinguished from Occasitermes (nasus long and thick, conical, antennae 13-segmented, frontal profile straight) and Eutermellus (head slightly constricted behind the antennae).

Alate

The 1st marginal tooth of the mandible distinctly larger than the 2nd; head broadly oval, usually narrowing anteriorly; fontanelle far back on the head; brain well developed within the head (given as Gehirn stark entwickelt in the original); clypeus about as long as half its width, or shorter but strongly convex, transversely oval and pale yellow.

Soldier

Small species. Mandibles without an apical part (Spitzenteil); nasus short, thick, conical; antennae 11-segmented; frontal profile (Stirnprofil) convex. The key additionally uses the worker clypeus, whose base is about as long as half its width, as an auxiliary character of the branch containing this genus.

Sources: Holmgren N. 1912. Termitenstudien 3. Systematik der Termiten. Die Familie Metatermitidae. Kungliga Svenska Vetenskapsakademiens Handlingar 48(4): 1–166., p. 59（Imagines 检索表 B/aa/bb/e）；p. 60（Soldaten 检索表 aa/b/c/d）；p. 64（亚属名录第 7 亚属） This text is an adaptation, not a verbatim transcription of the original.