Anochetus longus, Chen & Yang & Zhou, 2019

Chen, Zhilin, Yang, Zhigang & Zhou, Shanyi, 2019, Review of the ant genus Anochetus Mayr, 1861 (Hymenoptera, Formicidae) from China, with revival of the valid status of Anochetus gracilis, Journal of Hymenoptera Research 68, pp. 49-74 : 49

Anochetus longus sp. n.

Fig. 3

Type material.

Holotype worker, CHINA, Guangxi, Fanchenggang City, Fulong Village, 22.VI.2015, leg. Zhilin Chen, No. G150887; 3 paratype workers from the same colony. [holotype worker and 1 paratype worker are deposited in the Insect Collection, Guangxi Normal University, Guilin, China (GXNU); 1 paratype worker will be deposited in the Insect Collection, Southwest Forestry University, Kunming, Yunnan Province, China (SWFU); 1 paratype worker will be deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China (IZCAS)].

Holotype worker.

TL 8.56, HL 1.88, HW 1.59, CI 85, SL 1.80, SI 113, ED 0.33, PW 0.88, MSL 2.70, PL 0.54, PH 0.61, DPW 0.34, LPI 113, DPI 63.

In full-face view head longer than broad, posterior margin strongly concave. Mandibles linear, gradually broadened apically; inner margin without denticles, apical portion with three distinct teeth. Anterior margin of clypeus gently concave. Antennae 12-segmented; scapes long, surpassing to posterior corners of head by about 1/7 of its length. Maximum diameter of eye wider than apical width of mandible.

In lateral view mesosoma slender, pronotum weakly convex. Promesonotal suture narrowly weakly notched. Mesonotum short and sloping posteriorly. Mesonotum groove widely depressed. Propodeal dorsum weakly concave, posterolateral corners of propodeum forming a pair of small teeth. Petiole triangular and stout, anterior margin slightly concave, posterior margin convex, anterior margin longer than posterior margin, dorsal apex acutely angulate; subpetiolar process developed, subtriangular.

Frons with striae running in a fan shape, remainder of head smooth and shining. Mesosoma smooth and shining, pronotum with transverse striae on pronotal neck, dorsa of mesonotum and propodeum transversely striate. Petiolar node smooth and shiny except lower half area faintly striate. Gaster smooth and shining.

Dorsum of body with scattered erect hairs; mandibles with abundant subdecumbent pubescence; scapes and tibiae with sparse suberect hairs and dense decumbent pubescence. Body yellowish brown; legs brownish yellow.

Paratype workers.

TL 8.35-8.59, HL 1.88-1.89, HW 1.59, CI 84-85, SL 1.80-1.83, SI 113-115, ED 0.33-0.35, PW 0.85-0.88, MSL 2.63-2.70, PL 0.53-0.54, PH 0.59-0.61, DPW 0.34-0.36, LPI 110-113, DPI 63-65 (n = 3). As holotype.

Recognition.

The new species is similar to A. rufus (Jerdon, 1851), but well separated from the latter by the following characters: sides of pronotum smooth and shining; metanotal groove widely depressed; junction of propodeal dorsum and declivity forming a pair of small lateral teeth; the constriction between AIII and AIV with short ridges.

The new species is also similar A. agilis Emery, 1901, but well separated from the latter by the following characters: mesonotum smooth and shining; junction of propodeal dorsum and declivity forming a pair of small lateral teeth; petiolar node narrowly pointed at apex; the constriction between AIII and AIV with short ridges; body yellowish brown.

Distribution.

Known only from the type-locality Fangchenggang of Guangxi in China.

Figures

Figure 3. Anochetus longus holotype worker (No. G 150887). A head in full-face view B mandible in anterodorsal view C body in dorsal view D body in lateral view.