Polyrhachis brevicorpa

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Polyrhachis brevicorpa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Cyrtomyrma
Species: P. brevicorpa
Binomial name
Polyrhachis brevicorpa
Xu, Z., 2002

Polyrhachis brevicorpa p.jpg

Polyrhachis brevicorpa d.jpg

The type material was collected from mountain rain forest, monsoon evergreen broad-leaf forest, and deciduous broad-leaf forest.

Identification

Xu (2000) - This new species is close to Polyrhachis rastellata, but body densely and finely punctured and dull; petiolar node with median teeth distinctly longer than lateral ones; legs black.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: China (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • brevicorpa. Polyrhachis (Cyrtomyrma) brevicorpa Xu, 2002b: 528, figs. 34-37 (w.) CHINA.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Holotype. TL 5.0, HL 1.50, HW 1.45, CI 97, SL 1.85, SI 129, PW 1.10, AL 1.80, ED 0.40, MTL 2.25.

Paratypes. TL 5.3-5.8, HL 1.55-1.70, HW 1.50-1.65, CI 97, SL 1.80-1.85, SI 120-127. PW 1.15-1.35, AL 1.85-2.10, ED 0.45-0.50, MTL 2.20-2.65 (4 measured). As holotype.

Head about as broad as long. roughly triangular. Occipital margin roundly convex. occipital corners rounded. Lateral sides weakly convex. Mandibles with 5 teeth. Clypeus evenly convex, without longitudinal central carina, anterior margin with a pair of small denticles and straight between the denticles. Antennae long. scape surpassing occipital corner by about 2/3 of its length. Eyes convex, placed at occipital corners. In profile view, dorsum of alitrunk strongly convex, promesonotal suture distinct, metanotal groove absent. Propodeum unarmed, dorsum and declivity straight and separated by a blunt convex. In dorsal view, shoulders of pronotum rounded. In front view, petiolar node with a pair of short acute lateral teeth, median teeth elongate and slender, longer than the lateral ones. In profile view, petiolar node triangular, median teeth bent backward. Mandibles with dense micropunctures, less shiny. Head. alitrunk, petiole and gaster uniformly, densely and finely punctured, dull. The whole body with abundant depressed short pubescence. Dorsum of head with sparse erect hairs, mesonotum with a pair of erect hairs, apex of gaster with abundant suberect hairs. Occiput, pronotum, propodeum, petiole and dorsum of first gastral segment without hairs. Scapes with dense depressed pubescence, femora and tibiae with abundant depressed pubescence, both scapes, femora and tibiae without erect hairs. The whole body black, eyes yellowish brown, legs black, hairs grayish white.

Type Material

The type specimens are deposited in the Insect Collections, Faculty of Resources. Southwest Forestry College. Kunming. Yunnan Province, China. Holotype: worker. No. A97-977, 1120 m, Guanping Village, Dadugang Town, Jinghong County, Yunnan Province, VIII.7.1997, collected by Dr Xu Zheng-Hui in mountain rain forest. Paratypes: 1 worker, No. A97-561, 960 m, Sanchahe River, Mengyang Town, Jinghong County, Yunnan Province, III.1.1997, collected by Dr Xu Zheng-Hui in mountain rain forest; 1 worker, No. A97-3163, 1060 m, Longmen Village, Mengla County, Yunnan Province, XII.11.1997, collected by Mr. Yang Bi-Lun in mountain rain forest; 1 worker, No. A98-915, 1410 m, Nangongshan Mountain, Mengla County. Yunnan Province. III.15.1998, collected by Mr. LiuU Tai-Yong in monsoon evergreen broad-leaf forest; 1 worker, No. A98-283, 1600 m, Papo Village, Meng'a Town, Menghai County, Yunnan Province, III.8.1998, collected by Mr. He Yun-Feng in deciduous broad-leaf forest.

References

  • Xu, Z.-H. 2002b. A systematic study on the ant subgenus Cyrtomyrma Forel of the genus Polyrhachis Smith of China (Hymenoptera: Formicidae). Acta Entomol. Sin. 45: 522-530 (page 528, figs. 34-37 worker described)