Solenopsis altinodis

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Solenopsis altinodis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Solenopsis
Species complex: wasmannii
Species: S. altinodis
Binomial name
Solenopsis altinodis
Forel, 1912

Solenopsis altinodis casent0636190 p 1 high.jpg

From Wheeler, W. M. 1921), This species is found with Tachigalia but in the ground and not in petioles. In addition, it can often be found with Coccidotrophus and Eunausibius and destroys the colonies of these organisms. Additionally, this species can be found in ridge forest litter in Costa Rica and was collected at an elevation of 110m in Colombia. It was foraging on the vegetation in Venezuela.

Identification

A New World thief ant that is a member of the wasmannii species complex.

Pacheco and Mackay (2013) – Worker - This species is bicolored with a golden yellow body and a dark brown gaster. The eye is relatively large with 10-12 ommatidia The anterior border of the clypeus is lacking teeth. This species can• be easily recognized by the shape of the petiole. The petiole (side view) is approximately as wide as tall with the anterior edge rounded and lower than the posterior edge.

This species may be confused with Solenopsis bicolor (which overlaps in distribution) based on the anterior clypeal margin and bicolored coloration. However, it can be separated as the petiolar node is unique to this species and thus dissimilar in shape to that of C. bicolor where the petiole is narrow in side view. Additionally, C. bicolor has long erect hairs on all body surfaces and often 0.240 mm in total length on the mesosoma, as compared to the much shorter (0.100 mm) setae present on S. altinodis.

Keys

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia, Costa Rica, French Guiana, Guyana, Suriname, Trinidad and Tobago, Venezuela (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Known only from the worker caste.

Nomenclature

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

  • altinodis. Solenopsis altinodis Forel, 1912g: 10 (w.) VENEZUELA. See also: Wheeler, W.M. 1921f: 154.

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

Description

Worker

Pacheco and Mackay (2013) - Measurements (n=6). TL 1.56-1.80 (1.7); HL 0.444-0.522 (0.483); HW 0390-0.450 (0.410); EL 0.060-0.072 (0.065); ED 0.054; SL 0.276-0.312 (0.292); FSL 0.120; CI 81.3-87.8 (84.9); SI 58.8-62.7 (60.5); PL 0.132-0.168 (0.152); PW 0.096-0.120 (0.111); PI 125.0-147.0 (137.0); PPL 0.120; PPW 0.144-0.156 (0.150); PPI 76.9-83.3 (80.1); WL 0.312-0.360 (0.339); PSL 0.030-0.042 (0.036); PSW 0.024.

Eye relatively large (approximately 10 ommatidia); minor segments of funiculus relatively long; clypeal teeth absent; clypeal carinae extend anteriorly, then abruptly turn inward, passing along anterior margin of clypeus; mesosoma deeply impressed at metanotal suture; area between two faces of propodeum nearly angulate, two faces approximately equal in length; petiole approximately as long from point of dorsum of anterior peduncle, as height from same point to apex, anterior edge rounded, lower than posterior edge, petiole laterally compressed when viewed from above, being narrower anteriorly.

Entire body covered with coarse, erect hairs, approximately 0.1 mm in length.

Type Material

Pacheco and Mackay (2013) - Venezuela, Zig Zag, (lectotype worker [here designated] (Musee d'Histoire Naturelle Genève) and 5 paralectotype workers MHNG).

References