Harpegnathos venator

Harpegnathos venator is rare in Vietnam. It probably occurs in forest edges and relatively sparse forests. We found an undergound nest along a dirt trail in a sparse forest. (Eguchi et al. 2014)

Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia, Malaysia, Singapore. Oriental Region: Bangladesh, India, Laos, Nepal, Thailand, Vietnam. Palaearctic Region: China.

Nests are complex constructions as in Harpegnathos saltator. In northern Thailand, the entrance is funnel-shaped and raised above the ground (C. Peeters & F. Ito, unpubl.). See Malagidris sofina for comparison



Nomenclature

 *  venator. Drepanognathus venator Smith, F. 1858b: 82 (w.) INDIA. Forel, 1900c: 64 (q.m.). Combination in Harpegnathos: Emery, 1889b: 494. Current subspecies: nominal plus chapmani, rugosus. See also: Bingham, 1903: 51.

Drepanognathus venator

Holotype worker in. Labelled “Madras. 50/103.” Acc. Reg.: “1850 no. 103. Madras (French rocks). Presented by Mrs Capt. Hamilton.”

Description
Worker

Bingham (1903): Black; mandibles, clypeus, antennal cariute and legs brownish yellow, antennae castaneous, apex of the abdomen ferruginous; head and thorax closely coarsely cribrate punctate; abdomen finely densely reticulate punctate, opaque, with some large shallow punctures. Head, thorax and abdomen covered with rather sparse, short, erect pale hairs; pubescence miuute but fairly plentiful, to be seen only in certain lights. For the rest the characters of the genus.

Length: 16 - 18 mm

Queen

Bingham (1903): Similar to the worker, but the abdomen with long oblong punctures, the ocelli in the middle of the front. Thorax and abdomen more massive and as in D. saltator.

Length: 18 - 20 mm

Male

Bingham (1903): '"Mandibles broad at the base, attenuate, narrow and slender towards the apex, which is directed forwards. Head rectangular, somewhat rounded, broader than long. Eyes rather smaller than in the queen. Short depression between the mesonotum and scutellum. bordered by carinas and strongly striate inside. Smooth and shining, save the thorax, which is coarsely rugose, punctate or striate (longitudinally on the metanotum). Covered by a tine yellowish pilosity, dense on the legs, less abundant elsewhere. Pubescence very sparse. The 1st abdominal segment is pyriform and has the appearance of forming a 2nd node to the pedicel, a slight constriction between the 2nd and 3rd segments. Thorax and pedicel of a brownish black, head and basal segment of the abdomen reddish yellow. Rest of the abdomen yellow with a tinge of red. Legs and antennae very pale testaceous."

Length: 10 mm

References based on Global Ant Biodiversity Informatics

 * Bharti H., Y. P. Sharma, M. Bharti, and M. Pfeiffer. 2013. Ant species richness, endemicity and functional groups, along an elevational gradient in the Himalayas. Asian Myrmecology 5: 79-101.
 * Bharti H., Y. P. Sharma, and A. Kaur. 2009. Seasonal patterns of ants (Hymenoptera: Formicidae) in Punjab Shivalik. Halteres 1(1): 36-47.
 * Chantarasawat N., D. Sitthicharoenchai, C. Chaisuekul, and C. Lekprayoon. 2013. Comparison of Ants (Hymenoptera: Formicidae) Diversity in Dry Dipterocarp and Mixed-Deciduous Forests at Sri Nan National Park, Northern Thailand. Tropical Natural History 13(1): 1-19.
 * Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
 * Chen Y. Q., Q. Li, Y. L. Chen, Z. X. Lu, X. Y. Zhou. 2011. Ant diversity and bio-indicators in land management of lac insect agroecosystem in Southwestern China. Biodivers. Conserv. 20: 3017-3038.
 * Donisthorpe H. 1937. A new species of Harpegnathos Jerd., with some remarks on the genus, and other known species (Hym. Formicidae). Entomologist's Monthly Magazine 73: 196-201.
 * Eguchi K., B. T. Viet, and S. Yamane. 2014. Generic Synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part IICerapachyinae, Aenictinae, Dorylinae, Leptanillinae, Amblyoponinae, Ponerinae, Ectatomminae and Proceratiinae. Zootaxa 3860: 001-046.
 * Emery C. 1911. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118: 1-125.
 * Forel A. 1900. Les Formicides de l'Empire des Indes et de Ceylan. Part VI. J. Bombay Nat. Hist. Soc. 13: 52-65.
 * Forel A. 1906. Les fourmis de l'Himalaya. Bulletin de la Société Vaudoise des Sciences Naturelles 42: 79-94.
 * Forel A. 1912. Einige neue und interessante Ameisenformen aus Sumatra etc. Zool. Jahrb. Suppl. 15: 51-78.
 * Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
 * Hua Li-zhong. 2006. List of Chinese insects Vol. IV. Pages 262-273. Sun Yat-sen university Press, Guangzhou. 539 pages.
 * Huong N. T. T., P. V. Sang, and B. T. Viet. 2015. A preliminary study on diversity of ants (Hymenoptera: Formicidae) at Hon Ba Nature Reserve. Environmental Scientific Conference 7: 614-620.
 * Leong C. M., S. F. Shiao, and B. Guenard. 2017. Ants in the city, a preliminary checklist of Formicidae (Hymenoptera) in Macau, one of the most heavily urbanized regions of the world. Asian Myrmecology 9: e009014.
 * Li Z.h. 2006. List of Chinese Insects. Volume 4. Sun Yat-sen University Press
 * Lu Z., and Y. Chen. 2016. Effects of habitat on ant functional groups: a case study of Luchun County, Yunnan Province, China. Chinese Journal of Eco-Agriculture 24(5): 801-810.
 * Mathew R., and R. N. Tiwari. 2000. Insecta: Hymenoptera: Formicidae. Pp. 251-409 in: Director; Zoological Survey of India (ed.) 2000. Fauna of of Meghalaya. Part 7. [State Fauna Series 4.] Insecta 2000. Calcutta: Zoological Survey of India, 621 pp.
 * Mohamed M. 1995. A preliminary list of ants (Hymenoptera: Formicidae) of the Tawau Hills Park, Sabah. In: Ghazally Ismail  et al.  (eds.),  Tawau  Hills Park,  Sabah,  Pelanduk Pub.  Pp.  205-213.
 * Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
 * Sheela S. 2008. Handbook of Hymenoptera, Formicidae. Zoological Survey of India, 56 pages
 * Tiwari R. N. 1999. Taxonomic studies on ants of southern India (Insecta: Hymenoptera: Formicidae). Memoirs of the Zoological Survey of India 18(4): 1-96.
 * Tiwari, R.N. 1999. Taxonomic studies on ants of southern India (Insecta: Hymenoptera: Formicidae). Memoirs of the Zoological Survey of India 18(4):1-96
 * Wheeler W. M. 1930. A list of the known Chinese ants. Peking Natural History Bulletin 5: 53-81.
 * Wu B., Y. Lu, G. Liang, and L. Zeng. 2010. Influence of the red inported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae) on the diversity of ant communities in a newly infested longan orchard and grass areas nearby. Acta Ecologica Sinica 30(8): 2075-2083.
 * Xu Z., Zeng G., Liu T.-Y. and He Y.-F.. 1999. [A study on communities of Formicidae ants in different subtypes of vegetation in Xishuangbanna District of China.] Zoological Research 20: 118-125
 * Zhang R. J., L. W. Liang, and S. Y. Zhou. 2014. An analysis on the ant fauna of Nonggang Nature Reserve in Guangxi, China. Journal of Guangxi Normal university: Natural Science Edition 32(3): 86-93.
 * Zhou S.-Y. 2001. Ants of Guangxi. Guangxi Normal University Press, Guilin, China, Guilin, China. 255 pp.
 * Zryanin V. A. 2011. An eco-faunistic review of ants (Hymenoptera: Formicidae). In: Structure and functions of soil communities of a monsoon tropical forest (Cat Tien National Park, southern Vietnam) / A.V. Tiunov (Editor). – M.: KMK Scientific Press. 2011. 277 р.101-124.