Genus Mangolditermes · 曼戈尔德白蚁属

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

Enteric valve unarmed (as in Hydrecotermes and Rustitermes), but distinguishable from both by P1 being extremely long and S-shaped in left view. Compared with Aparatermes: the midgut tongue elongate (short in the latter), the scales with pointed tips situated on the proximal part of the pads (in the mid-region of the pads in the latter), and the protibia relatively inflated. Compared with Anoplotermes, which likewise has an unarmed enteric valve: the midgut tongue lacks white spherical midgut nodules in ventral view, and the pads are trapezoidal and truncate at the base (spatulate in the latter). Compared with Disjunctitermes: larger (maximum head width >0.75 mm versus <0.7 mm in the latter), pads wider (narrow and slender in the latter), scales distinct only from the middle towards the anterior part (over the whole pad in the latter). Compared with Tonsuritermes: the worker fontanelle is not particularly prominent.

Worker

Fontanelle oval, its border indistinct; dorsal surface of the head capsule slightly concave in lateral view; antennae pale, 14-segmented (2<3≅4<5). Apical tooth of the left mandible more prominent than M1+2, the apical tooth and M1+2 enclosing a 75° angle, the posterior margin of M1+2 nearly straight and long; molar prominence extremely sharp, conspicuous in dorsal view, nearly as long as M3; molar region swelling small. Apical tooth of the right mandible much more prominent than M1, the tip of M1 very sharp, M2 enclosing an almost 90° angle and directed backwards, a shallow notch between M1 and M2 forming a broad and slightly obtuse angle; molar plate reduced and concave. Crop small; midgut tongue of the mixed segment long but not inflated; P1 extremely long in left view, S-shaped from one side of the crop to P3; enteric valve seating weakly trilobed; enteric valve unarmed, composed of 6 slender, inflated pads, the distal half of each pad bearing distinct fringed pentagonal scales, the proximal end of each pad with about 10–20 minute triangular spines.

Sources: Carrijo T.F., Castro D., Wang M., Constantini J.P., Bourguignon T., Cancello E.M., Roisin Y. & Scheffrahn R.H. 2023. Diminishing the taxonomic gap in the neotropical soldierless termites: descriptions of four new genera and a new Anoplotermes species (Isoptera, Termitidae, Apicotermitinae). ZooKeys 1167: 317–352. https://doi.org/10.3897/zookeys.1167.100001, 章节 Mangolditermes gen. nov.（Diagnosis / Description / Comparison and remarks）；文章 pp. 317–352 This text is an adaptation, not a verbatim transcription of the original.