Genus Aganotermes · 雅白蚁属

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

Monotypic genus, somewhat close to Adynatotermes and to some Astalotermes, but easily recognised by the long mandibular apical teeth. Acholotermes also has equally long apical teeth, but in this genus the meso- and metanotal plates are narrower and the ocelli are farther from the compound eyes; the worker enteric valve seat has a shorter neck and a more ventral position. Asagarotermes and Amicotermes also have long apical teeth, but in both the left accessory marginal tooth is clearly clear of the molar prominence, the ocelli are closer to the compound eyes and the postclypeus is more inflated, and the worker enteric valves each have a distinctive structure.

Worker

Large, W 0.86–0.94 mm. Fore tibia scarcely inflated, Ti/Tw 5.00–5.53, with 3 apical spurs, the third about 1/3 of the other two. Mandibular apical teeth very long, La/Li 0.97–1.00, Ra/Ri 1.25–1.29; left mandible accessory marginal tooth with its proximal end level with the molar prominence edge; right mandible 1st marginal tooth anterior margin longer than the 2nd. Midgut and hindgut overlap about twice the midgut width or slightly more, the proximal hindgut within the Malpighian tubule knot, to the left. Enteric valve seat with two very weak lobes, connected by a very short neck to the second hindgut pouch, ventrally situated in the unopened abdomen; enteric valve inner cushion without spines, the surface scaly.

Alate

Large, W 1.11–1.23 mm. Fore tibia with 3 apical spurs, the third well developed, slightly shorter than the other two. Mandibular apical teeth long, La/Li 0.79–0.83, Ra/Ri 1.11–1.19; left mandible accessory marginal tooth with its proximal end level with the molar prominence edge; right mandible apical and marginal tooth apices in a line, the 1st marginal tooth anterior margin longer than the 2nd. Meso- and metanotal plates narrow at the constriction, M/W 0.21–0.24, transverse suture absent. Ocelli far from the compound eyes.

Sources: Sands W. A. 1972. The soldierless termites of Africa (Isoptera: Termitidae). Bulletin of the British Museum (Natural History), Entomology Supplement 18: 1–244. doi 10.5962/p.192782., pp. 135–137 This text is an adaptation, not a verbatim transcription of the original.