Carebara longii

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Carebara longii
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Carebara
Species: C. longii
Binomial name
Carebara longii
(Wheeler, W.M., 1903)

Carebara longii casent0003192 profile 1.jpg

Carebara longii casent0003192 dorsal 1.jpg

Specimen labels

This is the only North American species of Carebara, collected in Texas. Wheeler provides description of workers, females and males and offered some biological notes. The description was “[based] from numerous workers and males and four females from Denton, Texas” (Wheeler, 1903:145) and is interesting that the samples collected by Mr. Long were devoid of major workers. C. longii were until now put in the genus Oligomyrmex, and is intriguing the lack of soldiers in a genus, Oligomyrmex, normally characterized by the presence of dimorphic workers. Perhaps the soldiers were not collected or they are truly absent in this species.

Identification

A member of the Carebara concinna species complex.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Nearctic Region: United States (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Queen

Male

Nomenclature

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

  • longii. Erebomyrma longii Wheeler, W.M. 1903a: 140, figs. 1-5 (w.q.m.) U.S.A. Combination in Oligomyrmex: Ettershank, 1966: 123; in Erebomyrma: Wilson, 1986b: 61; in Oligomyrmex: Bolton, 1995b: 299; in Carebara: Fernández, 2004a: 199.

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

Description

Worker

Fernández (2004) - Lectotype (here designated): HW 0.48 HL 0.60 SL 0.32 PW 0.29 WL 0.55 GL 0.64 TL 2.13 CI 79 SI 68.

Head slightly longer than wide. Posterior border concave, lateral sides slightly convex. Mandibles with 4 teeth. Palps 2,1 (Wheeler 1903). Median portion of clypeus slightly concave. Sides of median portion of clypeus narrowing onto frontal lobes. Frontal triangle poorly defined, best seen in dorsal oblique view. Eyes reduced to one ommatidium, situated anterior to cephalic midline. Antennae 11-segmented with club 2-segmented. Scapes fail to reach the vertexal border in 1/3 of the head length. In side view, alitrunk slightly convex, interrumped by the deep metanotal groove. Promesonotal suture impressed laterally. Mesonotal groove deep and well marked dorsal and laterally. Propodeum armed with small teeth which is hardly longer than broad. Propodeal spiracle relatively small, circular, high and equidistant from base of tooth. Bulla of metapleural gland large. Propodeal lobes reduced to narrow lamellae extended from propodeal tooth downward. Petiole with short peduncle and with well defined, high node; petiolar spiracle at midway of petiolar length. Subpetiolar process produced as strong spine directed forward, spine normally not visible in mounted specimens. Postpetiole dorsally concave, lower than petiole. In dorsal view petiole longer than broad and longer than postpetiole. Postpetiole broader than longer and broader than petiole, and campanuliform in posterior oblique view. In dorsal view anterior margin of first tergum straight. Basal portion of first tergum with a shallow cuneate trench. Body smooth and shining. Mandibles with several coarse scattered punctures interspersed with irregular longitudinal carinae feebly impressed. Head densely puncturated (except in the central longitudinal area), each punctum with a small hair. Anterior half of head with a few fine longitudinal rugulae, concentric around antennal receptacles. Sides of alitrunk (except pronotum) and petiole densely rugoso-reticulated, sometimes the sculpturation poorly defined. Short curved hairs (less than 0.04 mm) on head, antennae, mandibles, legs, promesonotum, a few in petiole. Four medium size hairs (about 0.05 mm) on median portion of clypeus. Large hairs (more than 0.07 in length): Four arising from the anterior clypeal margin proyected upward (the external ones) and forward (the internal ones) approaching the mandibular apices; two near the occipital border and one over occipital border, two near the pronotal humeri, two in the promesonotal dorsum, near the posterior margin; several on petiolar and postpetiolar dorsum. All body yellowish.

Very similar to the male of Carebara longiceps.

Male

Fernández (2004) - Male paralectotype (here designated, LACM): HW (including eyes) 1.13 HL 0.84 EL 0.41 SL 0.23 PW 1.25 WL 1.25 WL 5.2 GL 2.95 TL 10.11 CI 134 SI 20.

Type Material

Fernández (2004) - Paralectotype (here designated). UNITED STATES. Texas: 3 workers, Denton, 28 sep 1902, W. H. Long Jr., Los Angeles County Museum of Natural History and Insect Collection, Instituto de Ciencias Naturales.

References

  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 299, Combination in Oligomyrmex; revived combination, catalogue)
  • Ettershank, G. 1966. A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Aust. J. Zool. 14: 73-171 (page 123, Combination in Oligomyrmex)
  • Fernández, F. 2004a. The American species of the myrmicine ant genus Carebara Westwood (Hymentoptera: Formicidae). Caldasia. 26(1):191-238. (page 199, figs. 1, 10 Combination in Carebara; worker , male described)
  • Wheeler, W. M. 1903a. Erebomyrma, a new genus of hypogaeic ants from Texas. Biol. Bull. (Woods Hole) 4: 137-148 (page 140, figs. 1-5 worker, queen, male described)
  • Wilson, E. O. 1986b. Caste and division of labor in Erebomyrma, a genus of dimorphic ants (Hymenoptera: Formicidae: Myrmicinae). Insectes Soc. 33: 59-69 (page 61, Combination in Erebomyrma)