Lenomyrmex wardi

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Lenomyrmex wardi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Lenomyrmex
Species: L. wardi
Binomial name
Lenomyrmex wardi
Fernández & Palacio, 1999

Lenomyrmex wardi casent0106197 profile 1.jpg

Lenomyrmex wardi casent0106197 dorsal 1.jpg

Specimen labels

Specimens have been collected in rainforest leaf litter.


Keys including this Species


Distribution based on Regional Taxon Lists

Neotropical Region: Colombia, Ecuador (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • wardi. Lenomyrmex wardi Fernández & Palacio, 1999: 10, figs. 4-6 (w.q.) ECUADOR.

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



Holotype (paratypes, n = 6). TL: 3.30 (3.30–3.52); HL: 0.68 (0.68–0.72); HW: 0.58 (0.58); ML: 0.28 (0.28); SL: 0.49 (0.49–0.50); EL: 0.19 (0.19–0.20); WL: 0.94 (0.9–1.04); PL: 0.38 (0. 38–0.40); PW: 0.20 (0.18–0.20); PPL: 0.26 (0.26); PPW: 0.21 (0.21–0.22); GL: 0.76 (0.76–0.84); GW: 0.56 (0.56–0.63); CI: 0.85 (0.80–0.85); OI: 0.33 (0.33–0.34). Worker diagnosis. Similar to Lenomyrmex mandibularis, with the following differences. Mandibular peg-like denticles vary from 18 to 20. Eyes larger in proportion to head, with 6 or 7 facets in maximum diameter. Propodeal spines not so long, length less than distance between bases. Petiolar peduncle shorter; petiolar node more protruding and slightly more defined. Metapleuron and posterior mesopleuron rugo-reticulate. Striation of mesosomal dorsum more rough and irregular. Scape with some long suberect hairs toward apex in addition to short decumbent pilosite, shorter than maximum diameter of scape. Femora with scattered long erect hairs, in addition to decumbent pile. Integument in general more opaque than in Lenomyrmex mandibularis; head, mesosoma, petiole, postpetiole and gaster slightly clearer and reddish. Legs and scapes yellowish brown, clearer than in Lenomyrmex mandibularis. Dorsum of mandibles and antennal club whitish yellow.


Paratype. From the same locality as the holotype. Queen measurements. TL: 3.52; HL: 0.72; HW: 0.58; ML: 0.28; SL: 0.50; EL: 0.20; WL: 1.02; PL: 0.40; PW: 0.18; PPL: 0.26; PPW: 0.22; GL: 0.84; GW: 0.63; CI: 0.80; OI: 0.34. As the worker, with the following differences. Three ocelli present. Mesosoma robust. Mesopleural suture present. Dorsum of pronotum with weak, irregular striae laterally more defined. Mesoscutum with longitudinal rugulae. Axillae rugo-reticulate. Scutellum rugose anterad with some posterior transverse striae. Propodeum with transverse striae. Anepisternum with well defined longitudinal striation. Katepisternum with oblique striae. Metapleura with irregular striae. Pilosite most abundant on mesosoma and legs.

Type Material

Holotype worker. ECUADOR, Pichincha, Maquipucuna, 5 km ESE Nanegal, 17.viii.1991, 1500 m, 0°079N, 78°389W, Winkler sample (P.S. Ward no. 11503–10) (Museum of Comparative Zoology). Paratypes. One queen and 6 workers of the same locality. Deposited in MCZ (queen), Universidad Nacional de Colombia, Museu de Zoologia da Universidade de Sao Paulo, The Natural History Museum, Philip S. Ward Collection and National Museum of Natural History; 7 workers from Colombia, Nariño, Barbacoas, Río Ñambí, 1100–1300 m, 1-V-1995, F. Escobar leg. no. 204, deposited in Cornell University Insect Collection, Los Angeles County Museum of Natural History, Naturhistorisches Museum Wien, Vienna, National Museum of Natural History and Musee d'Histoire Naturelle Genève.


We have named this species in honour of our friend and colleague Dr Philip S. Ward. He kindly supplied the Lenomyrmex material from Panama and Ecuador for study, although he was aware some years ago that the specimens represented an undescribed genus.


  • Fernández C., F.; Palacio G., E. E. 1999. Lenomyrmex, an enigmatic new ant genus from the Neotropical region (Hymenoptera: Formicidae: Myrmicinae). Syst. Entomol. 24: 7-16 (page 10, figs. 4-6 worker, queen described)

References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.