Nasutitermes orthonasus Tsai & Chen, 1963 直鼻象白蚁

Recorded in Fauna Sinica

The morphological and biological accounts below are taken from Fauna Sinica and related literature; only structure and punctuation have been standardized here.

Morphology

Soldier

Head longer than wide, narrowing anteriorly and widening gradually backwards, widest at its posterior end, its length equal to the length of the nasus. Nasus slender as a tube, slightly turned up in lateral view, the base slightly raised, the posterior end of the vertex very high, the line where it joins the nasus undulating like a wave. The anterolateral end of the mandibles bearing a long spine, the tip of the spine often with a single inward-directed tooth. Antennae with 12 segments, segments 2 and 3 about equal in length, segment 2 stouter. Anterior part of the pronotum upright and slightly inclined backwards. Abdomen slender, olive-shaped, legs well developed.

Alate

Worker

Head yellow, abdomen pale yellow mottled with white stripes; pilosity even over the body, the head with short hairs and a few long setae. Head oval, narrow in front and broad behind, widest at about the posterior third, the posterior margin arcuately rounded and slightly flat in the middle. The apical tooth of the left mandible distinctly larger than the first marginal tooth, the second marginal tooth reduced and merged with the posterior cutting edge of the first, the third marginal tooth minute, its anterior cutting edge meeting the posterior cutting edge of the first at an acute angle. Tibial spur formula 2:2:2, tarsi 4-segmented.

Nymph

Abstract (from the source)

Biology

Distribution and locality

Longyan, Hexi and Nanjing, Fujian; Hunan; Dabu, Shaoguan, Dinghu Mountain and Nanxiong, Guangdong; Guangxi; Hekou, Yunnan (90 m above sea level), Mengla, Jinping (550 m and 580 m above sea level), Menghai and Yingjiang.

Taxonomic notes

The original work recorded it under the genus Havilanditermes; this site now assigns it to the genus Nasutitermes, the generic name having been changed.

Source: Huang Fusheng et al. (2000), Fauna Sinica, Insecta vol. 17, Isoptera, Science Press. (entry no. 397 in the original work) Entries are cited by their number in the original work.