Genus Mimeutermes · 仿白蚁属

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

Sands places this genus in the Paracornitermes group of the Ethiopian region. Alate: apical tooth of the left mandible long, the cutting edge between the 1st and 3rd marginal teeth short and slightly concave (left mandible index 2.00–2.23), the gap between the 3rd marginal tooth and the molar plate less than half the width of that cutting edge; 2nd marginal tooth of the right mandible absent, the molar plate with prominent anterior and posterior rounded wings, tapering towards the apex, without ridges — the absence of ridges makes it easy to distinguish from Fulleritermes, Leptomyxotermes, Grallatotermes and other ridged genera. Soldier monomorphic, nasus thickly conical, joining the tapering base of the head capsule, head in dorsal view not constricted, top-shaped together with the nasus, antennae 12-segmented.

Alate

Left mandible with a long apical tooth, the cutting edge between the 1st and 3rd marginal teeth short and slightly concave (left mandible index 2.00–2.23), the gap between the 3rd marginal tooth and the molar plate less than half the width of that cutting edge. Apical tooth and 1st marginal tooth of the right mandible as in the left mandible, 2nd marginal tooth absent, the posterior cutting edge of the 1st marginal tooth concave, the molar plate with prominent anterior and posterior rounded wings, tapering towards the apex, without ridges. Postclypeus slightly raised, twice as wide as long or a little less. Fontanelle pale, slit-like, slightly forking anteriorly and with a pale spot, or nearly obsolete, only slightly paler than the head. Compound eyes slightly projecting from the sides of the head. Head pilosity variable. Posterior margin of the pronotum rounded, anterior margin concave.

Soldier

A single morph. Nasus thickly conical, its base joining the taper of the head capsule, fontanelle relatively large. Reduced mandibles pointed or unpointed; anterior margin of the labrum undulate. Head capsule in dorsal view not constricted, top-shaped together with the nasus, sides parallel or rounded posteriorly. Antennae 12-segmented. Head and nasus with only a few conspicuous setae. Tergite hairs sparse, scattered and minute, those of the posterior margin and of the last 2–3 tergites longer; sternite hairs sparse and short, those of the posterior margin about twice as long as the short hairs.

Worker

Mandibles as in the alate, only the apical tooth proportionally longer (left mandible index 3.32–3.59) and the molar plate of the right mandible larger with more prominent wings.

Sources: Sands W.A. 1965. A revision of the termite subfamily Nasutitermitinae (Isoptera, Termitidae) from the Ethiopian Region. Bulletin of the British Museum (Natural History), Entomology, Supplement 4: 1–172. https://doi.org/10.5962/p.193228, p. 158（Genus Mimeutermes Silvestri：Imago / Soldier / Worker；Remarks） This text is an adaptation, not a verbatim transcription of the original.