Genus Procapritermes · 前扭白蚁属

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

A new genus established by Holmgren 1912, containing 3 species, all from Borneo: Procapritermes atypus (new species), P. minutus (Hav.) and P. setiger (Hav.). The alate has antennae of 14 segments, markedly incrassate towards the apex, the last segment bearing a pointed appendage at its tip; the soldier has a long rectangular head without a frontal projection, the mandibles slender and asymmetric, their curvature of the same type as in Capritermes but very weak, with a sharp, strong tooth above the basal segment; the worker has a rather small, broadly oval head, mandibles with a large apical tooth, and antennae of 14 segments. The original text notes that this genus is in fact a genus formed by slight differentiation from the Protocapritermes subgenus of Mirotermes.

Alate

Head broadly oval, narrowed anteriorly. Compound eyes relatively small. Ocelli separated from the compound eyes by hardly more than their diameter. Clypeal base shorter than half its width, flatly convex, without a median line. Mandibular tooth 1 large. Antennae of 14 segments, markedly incrassate towards the apex, the last segment with a pointed appendage at its tip. Posterior parts of the meso- and metanotum narrowed, with an emargination at the end. Wing membrane with fine punctures (spines). Media close to the cubitus. Abdomen slender. Without styli.

Soldier

Head slender, rectangular, without a frontal projection, relatively flat, truncate progressively anteriorly. Frontal gland opening small, fully visible from above, surrounded by sparse hairs (a vestigial hair ring). Clypeal base very narrow, bounded by the large mandibular basal segments. Labrum much longer than wide, either symmetrical or distinctly deflected to the right. Mandibles slender and asymmetric, the outer basal margin of the left mandible fairly strongly concave; their curvature of the same type as in Capritermes, but only very weakly expressed. A sharp, strong tooth above the basal segment. Antennae of 14 segments, segment 3 longer than segment 2 and about as long as segment 4. Pronotum small, saddle-shaped.

Worker

Head rather small, broadly oval. Clypeal base with a very weakly convex posterior margin and a straight anterior margin, shorter (much shorter) than half its width, fairly strongly convex. Mandibles with a large apical tooth. Antennae of 14 segments. Pronotum small, saddle-shaped.

Sources: Holmgren, N. 1912. Termitenstudien 3. Systematik der Termiten. Die Familien Mastotermitidae, Protermitidae und Mesotermitidae. Kungliga Svenska Vetenskapsakademiens Handlingar 48(4): 1–166, Taf. 1–4., p. 113（archive.org 项 biostor-184513 页面图像） This text is an adaptation, not a verbatim transcription of the original.