Anochetus haytianus

Known only from eastern Haiti. The types were collected from small colonies under rocks in shady places. Brown (1978) believed they are likely to be nocturnal foragers.

Identification
Summarized from Brown (1978): Distinguished from other emarginatus group species by its shorter mandibles (MI < 67) with fewer teeth and denticles along the inner preapical margins. More or less yellow in color. Distinguished from the similar Anochetus longispinus by its acute petiole teeth that are < .01 mm long.

Distribution based on Regional Taxon Lists
Neotropical Region: Greater Antilles, Haiti.

Nomenclature

 * . Anochetus (Stenomyrmex) haytianus Wheeler, W.M. & Mann, 1914: 15, fig. 6 (w.) HAITI.
 * Type-material: syntype workers (number not stated, “a number of specimens”).
 * Type-localities: Haiti: Manneville (= W shore of Lake Assuei), 1912-13 (W.M. Mann), and Haiti: mountains N of Jacmel, 1912-13 (W.M. Mann).
 * Type-depository: MCZC.
 * Status as species: Wheeler, W.M. 1925a: 9 (in key); Kempf, 1964f: 238Kempf, 1972a: 22; Brown, 1978c: 557, 611; Bolton, 1995b: 64; Lubertazzi, 2019: 72.
 * Distribution: Haiti.

Worker
Length 6.5-7.5 mm.

Differing from emarginatus Fabr. in the following structural characters: The head is much broader behind, the mandibles shorter, with fewer (4 to 5) denticles on their inner borders and slightly shorter apical teeth. The antennal scapes and all the funicular joints are distinctly shorter, the former extending less than one quarter their length beyond the posterior corners of the head. The epinotum is quite unarmed, low and rounded in profile. The petiole is more erect, with subequal anterior and posterior declivities and at the summit with two teeth which are longer, more acute and more diverging than in emarginatus.

Body smooth and shining; pronotum finely and longitudinally, meso- and epinotum more coarsely and transversely rugose; front of head also finely longitudinally rugose, the rugae diverging posteriorly.

Hairs very sparse as in emarginatus and confined to the mouth and gaster.

Color brownish yellow, legs, mandibles and antennae paler, the tint throughout being lighter than in emarginatus subsp. testaceus Forel.



Type Locality Information
Described from a number of specimens taken at Manneville and in the mountains north of Jacmel from small colonies nesting under stones in shady places.

References based on Global Ant Biodiversity Informatics

 * Brown Jr., W.L. 1978. Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, Tribe Ponerini, Subtribe Odontomachiti, Section B. Genus Anochetus and Bibliography. Studia Entomologia 20(1-4): 549-XXX
 * Brown W.L. Jr. 1978. Contributions toward a reclassification of the Formicidae. Part VI. Ponerinae, tribe Ponerini, subtribe Odontomachiti. Section B. Genus Anochetus and bibliography. Studia Ent. 20(1-4): 549-638.
 * Fernández F. 2008. Subfamilia Ponerinae s.str. Pp. 123-218 in: Jiménez, E.; Fernández, F.; Arias, T.M.; Lozano-Zambrano F. H. (eds.) 2008. Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp.
 * Kempf W. W. 1964. The ants of the genus Anochetus (Stenomyrmex) in Brazil (Hym., Formicidae). Studia Entomologica 7: 237-246.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Lubertazzi D. 2019. The ants of Hispaniola. Bulletin of the Museum of Comparative Zoology, 162(2): 59-210.
 * Perez-Gelabert D. E. 2008. Arthropods of Hispaniola (Dominican Republic and Haiti): A checklist and bibliography. Zootaxa 1831:1-530.
 * Scott-Santos, C.P., F.A. Esteves, C.R.F. Brandao. 2008. Catalogue of "Poneromorph" ant type specimens (Hymenoptera, Formicidae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papeis Avulsos de Zoologia 48(11):75-88.
 * Wheeler W. M., and W. M. Mann. 1914. The ants of Haiti. Bulletin of the American Museum of Natural History 33: 1-61.