Crematogaster difformis

Smith, F., 1857, Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace., Journal of the Proceedings of the Linnean Society of London, Zoology 2, pp. 42-88 : 76-77

publication ID

2588

DOI

https://doi.org/10.5281/zenodo.3509161

persistent identifier

https://treatment.plazi.org/id/78BCC43F-A793-FAC3-FBAC-743ABF030B0E

treatment provided by

Christiana

scientific name

Crematogaster difformis
status

 

6. Crematogaster difformis View in CoL   HNS .

C. niger; capite thorace multum latiore; thorace dilatata et postice profunde excavato; abdomine cordato.

Worker. Length 2 1/4 lines. Black; head very large, twice as wide as the thorax; the tips of the mandibles, and apical joints of the flagellum, dark ferruginous; the head smooth and shining; the eyes small, placed laterally about the middle of the head. Thorax: the anterior margin rounded, the sides parallel behind; the metathorax greatly dilated at the sides and above, and with a deep excavation behind; the legs stout, with their joints and the tarsi ferruginous. Abdomen heart-shaped, with the base, in some examples, slightly ferruginous.

Worker minor. Differs only in being one-third smaller.

Hab. Singapore; Borneo (Sarawak).

This species resembles the C. inflatus   HNS in form; but the swollen portion of the thorax is of a solid consistency; it forms, however, a similar laboratory of saccharine matter; the orifice from which it exudes is not exactly at the posterior angles, but a little way beneath; in some specimens, masses of crystallized particles can be seen beneath the orifice; of this species, both large and small workers have been examined, and the same apparatus is found on them both.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Crematogaster

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