Strumigenys pilosa

Strumigenys pilosa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Attini
Genus:	Strumigenys
Species:	S. pilosa
Binomial name
	Strumigenys pilosa; Zhou, 2001

Nothing is known about the biology of Strumigenys pilosa.

Identification

Zhou (2001) - Resembles Strumigenys lacunosa, but differs from the latter in head and alitrunk with much more flagellate hairs; 2 spiniform teeth of apical fork of mandible· without intercalary denticle; there are several longitudinal striations among sculptures on alitrunk and the postpetiolar disc. Besides, the new species larger in size compared with the measurements: of the latter.

Distribution

Distribution based on Regional Taxon Lists

Palaearctic Region: China (type locality).

Distribution based on AntMaps

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

pilosa. Strumigenys pilosa Zhou, 2001b: 81, 232, figs. 129-131 (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 3.3, HL 0.88, HW 0.66, CI 75, SL 0.49, SI 74, ML 0.43, MI 48, FCD 0.21, PW 0.37, WL 0.37, FCI 31.

Head broader posteriorly than in front. Mandible about 1/3 of the length of head; without preapical tooth, apical fork with 2 spiniform teeth, without intercalary denticle. Anterior clypeal margin straight. Antennae 6 segments; 2nd segment 2 X as long as broad, 3rd and 4th segments about as long as broad, 5th segment 3 X as long as broad, terminal segment 4 X as long as broad; all segments in a ratio of about 12 : 2. 5 : 1 : 1 : 4 : 8. Eyes small, with 13 ommatidia. Alitrunk shorter than head, sutures distinct. Dorsal outline of pronotum flattened, mesonotum oblique backward; basal face of propodeum as long as declivity; propodeal spines developed, triangular, broad at base. Petiolar node swollen but not highly convex, with a long peduncle; spongiform appendages relatively developed.

Mandibles with sparse punctures; punctures on antennal scapes dense and fine; clypeus, head, alitrunk, petiole and postpetiole with lacunose sculptures; sculptures on head coarser, there are several longitudinal striations among sculptures on alitrunk and postpetiolar disc; parts of mesopleura and metapleura smooth and shining; gaster smooth and shining, base of first segment with short striations. Head with 6 pairs of flagellate hairs, dorsum of pronotum and mesonotum with 9 flagellate hairs, propodeum with abundant flagellate hairs which slightly shorter than those on pronotum or mesonotum; petiole, postpetiole and gaster with abundant flagellate hairs. Flagellate hairs on head and alitrunk mixed up with abundant decumbent hairs.

Color yellowish brown.

Type Material

Holotype worker, Huaping Natural Reserve, 19.VIII.1998, Shanyi Zhou leg.

References

Tang, K. L., Guénard, B. 2023. Further additions to the knowledge of Strumigenys (Formicidae: Myrmicinae) within South East Asia, with the descriptions of 20 new species. European Journal of Taxonomy 907, 1–144 (doi:10.5852/ejt.2023.907.2327).
Zhou, S. 2001. Ants of Guangxi. Guilin, China: Guangxi Normal University Press. 255 pp. (page 232, figs. 129-131 worker described)

References based on Global Ant Biodiversity Informatics

Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
Zhou S.-Y. and Xu Z. 2003. Taxonomic study on Chinese members of the ant genus Strumigenys F. Smith (Hymenoptera, Formicidae) from the mainland of China. Acta Zootaxonomica Sinica28(4): 737-740.