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Strumigenys connectens
| Strumigenys connectens | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Strumigenys |
| Species: | S. connectens |
| Binomial name | |
| Strumigenys connectens Kempf, 1958
| |
The paratypes were obtained from an orchid, Cattleya mendeli, that was being imported into the USA.
Identification
A member of the gundlachi complex in the Strumigenys gundlachi group.
Longino (2006) - Intensive collecting at La Selva Biological Station and the Barva Transect has revealed a complex of five closely similar but consistently separable species related to Strumigenys subedentata. Strumigenys subedentata occurs throughout the Neotropics, usually in lowland wet to somewhat seasonal sites, in both mature and second growth forests. It is often collected in samples of litter and rotten wood from the forest floor. Strumigenys trieces occurs on the Atlantic slope of Central America from Nicaragua to Panama, from sea level to 1100 m elevation. It occurs most abundantly in mature wet forest where, like S. subedentata, it inhabits leaf litter and rotten wood on the forest floor. The three new species described here – Strumigenys oconitrilloae, Strumigenys cascanteae, and Strumigenys paniaguae – occur as a graded series of elevational specialists, with S. oconitrilloae occurring at La Selva and the 300 m site on the Barva Transect, S. cascanteae occurring at the 300 m site and at a 600 m site in the nearby Arenal National Park, and S. paniaguae occurring at the 500 m, 1100 m, and 1500 m sites on the Barva Transect. These three all show a tendency to be arboreal, nesting under bark flaps or epiphytes and rarely occurring in samples of litter and rotten wood from the forest floor. A sixth species in this complex, Strumigenys connectens, occurs in Colombia and Ecuador.
Bolton (2000) - Closest related to Strumigenys decipula, Strumigenys trieces and Strumigenys subedentata; see under the last named for discussion.
Keys including this Species
Distribution
Columbia and Ecuador
Latitudinal Distribution Pattern
Latitudinal Range: -0.4211° to -0.4211°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Colombia (type locality), Ecuador.
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. |
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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. |
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Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- connectens. Strumigenys connectens Kempf, 1958b: 59, figs. 1-3 (w.) COLOMBIA. Combination in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 117. See also: Bolton, 2000: 181.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Bolton (2000) - TL 2.5-2.9, HL 0.60-0.65, HW 0.50, CI 81-86, ML 0.33, MI 53-56, SL 0.33, SI 66, AL 0.64-0.73 (measurements after Kempf, 1958a). Characters of gundlachi complex. Inner margins of mandibles strongly convex in full-face view, at full closure touching at about the midlength and diverging both proxi mally and distally. Apex of mandible with 2 intercalary denticles between apicodorsal and apicoventral teeth. Preapical denticles 3 - 4 in number, located in the apical third of the mandible length; apicodorsal tooth followed proximally by a denticle or small tooth, then a second small tooth that varies from about the size of the first to distinctly larger; proximal of this with 1 - 2 denticles. Scape broadening medially but not expanded into a wide lobe, SL about 3.5 times the maximum scape width. Ground-pilosity of head and alitrunk of decumbent curved spatulate hairs. Apicoscrobal hair short. Cephalic dorsum with a single pair of short erect hairs, close to occipital margin. Pronotal humeral hair present. Mesonotal dorsum with a single pair of erect hairs. Head, alitrunk and waist segments reticulate-punctate. First gastral sternite smooth, not reticulate basally. Spongiform lobes of postpetiole small but well developed.
Type Material
Strumigenys connectens Kempf, 1958a: 59, figs. 1 - 3. Holotype worker, COLOMBIA: Cundinamarca Prov., 7 mi. W of Alban, 15.iii.1955 (E.J. Schlinger & E.S. Ross); paratype workers, from COLOMBIA: 8-22-45, SF 19518, 45-16312 (intercepted by U. S. Plant Quarantine, San Francisco, California, 22.viii.1945, on imported orchid Cattleya mendeli) (California Academy of Sciences, Museum of Comparative Zoology, National Museum of Natural History, Museu de Zoologia da Universidade de Sao Paulo) (examined).
References
- Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99:1-191.
- Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). Journal of Natural History. 33:1639-1689. (page 1673, Combination in Pyramica)
- Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 181, redescription of worker)
- Brown, W. L., Jr. 1962c. The neotropical species of the ant genus Strumigenys Fr. Smith: synopsis and keys to the species. Psyche. 69:238-267.
- Fernández, F.; Palacio, E. E.; MacKay, W. P.; MacKay, E. S. 1996. Introducción al estudio de las hormigas (Hymenoptera: Formicidae) de Colombia. Pp. 349-412 in: Andrade, M. G., Amat García, G., Fernández, F. (eds.) Insectos de Colombia. Estudios escogido (page 381, see also)
- Kempf, W. W. 1958b. Three new ants of the genus Strumigenys from Colombia (Hym. Formicidae). Rev. Bras. Entomol. 8: 59-68 (page 59, figs. 1-3 worker described)
- Longino, J.T. 2006b. New species and nomenclatural changes for the Costa Rican ant fauna. Myrmecologische Nachrichten. 8:131-143.
- [[Media:Silva, T.S.R.D., Chaul, J.C.M. et al. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (10.5852@ejt.2022.798.1673).pdf|Silva, T.S.R.D., Chaul, J.C.M., Feitosa, R.M. 2022. Lectotype designation and redescription of four commonly collected Neotropical species of Strumigenys (Hymenoptera: Formicidae). European Journal of Taxonomy, 798(1), 103–126 (Template:Doi.org).]]
References based on Global Ant Biodiversity Informatics
- Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.