Malagasitermes milloti Cachan, 1949 米约马尔加什白蚁

Morphology

The description below is paraphrased from the original or a later revision, by caste; the source is cited at the end.

Diagnostic characters

The left mandibular index is 0.66 (worker); it is closest to the Oriental Leucopitermes rather than to the African genera of the same branch (the smallest left mandibular index among the African genera being 1.12 in Eutermellus).

Soldier

The frontal projection and vertex bear short hairs, with few hairs at the base of the nasus; there are a few setae on the vertex; the hairs of the abdominal tergites and sternites are long and dense, and the posterior margin of each plate bears a row of setae about twice as long as the body hairs; the head is markedly constricted and nearly globular posteriorly; the frontal projection is conical; there are 12–13 antennal segments; the right mandible has a short, sharp apical point and the left has none; the angle between the anterior and posterior parts of the pronotal profile is less than a right angle.

Worker

The apical teeth of both mandibles are relatively large compared with marginal tooth 1; the cutting edge of marginal teeth 1+2 of the left mandible is wavy; a distinct notch remains in front of marginal tooth 3 of the left mandible; marginal tooth 2 of the right mandible is slightly rounded; the left mandibular index is 0.66.

This genus is monotypic, containing only this species; the following is the genus-level description based on the original literature; species-level measurements and intraspecific variation are given in the original.