Adelomyrmex myops

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Adelomyrmex myops
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Adelomyrmex
Species: A. myops
Binomial name
Adelomyrmex myops
(Wheeler, W.M., 1910)

Adelomyrmex myops casent0173239 profile 1.jpg

Adelomyrmex myops casent0173239 dorsal 1.jpg

Specimen labels

Most records reveal A. myops to be a lowland species but with less habitat specificity than other Adelomyrmex. It occurs in mature forest of varying seasonality, from aseasonal wet forest to strongly seasonal dry forest. It also has been collected in disturbed habitats, including a cacao plantation in Honduras. There is a record from the Galapagos Islands, where it is probably introduced (Herrera & Longino 2008). It can be locally abundant, occurring in up to 20% of quantitative miniWinkler samples. The great majority of records are from 600 m elevation or lower, but an anomalous site is Cerro Musún in Nicaragua. Adelomyrmex myops occurred in Winkler samples from 1000–1100 m, but not in quantitative Winkler sampling around 700 m. (Longino 2012)


Longino (2012) - In some cases, the dorsal promesonotal rugae of workers are somewhat longitudinally oriented, blurring the distinction between A. myops, Adelomyrmex tristani, and Adelomyrmex paratristani. The dorsal rugae are never strongly linear, like most collections of A. tristani and A. paratristani. Nearly all A. tristani have strongly linear dorsal rugae, but there is more variation in A. paratristani, where some workers have strongly vermiculate rugae, approaching the condition of some A. myops workers. In other words, A. myops occupies the range of variation from completely reticulate rugose to strongly vermiculate rugose with some longitudinal orientation, while A. paratristani ranges from the latter condition to having completely linear, parallel, longitudinal rugae. Adelomyrmex myops has dorsal pilosity more like A. tristani than A. paratristani. This is most evident on the gaster, where A. paratristani usually has sparse, long, erect setae, with very reduced presence of more decumbent setae beneath them, while A. myops has a denser brush of erect and subdecumbent setae.

Queens of A. myops have an abrupt transition from longitudinal rugae on the mesonotum to coarse, reticulate rugosity on the scutellum. In A. tristani and A. paratristani, the scutellum has longitudinal, subparallel rugae.

Keys including this Species


Guatemala to Panama, Ecuador (Galapagos).

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia, Costa Rica, Ecuador, Galapagos Islands, Guatemala (type locality), Honduras, Mexico, Nicaragua, Panama.

Check distribution from AntMaps.

Distribution based on specimens

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The above specimen data are provided by AntWeb. Please see Adelomyrmex myops for further details



Males have yet to be collected.



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

  • myops. Apsychomyrmex myops Wheeler, W.M. 1910a: 261, fig. 2 (w.) GUATEMALA. Wheeler, G.C. & Wheeler, J. 1955b: 29 (l.); Fernández, 2003b: 25 (q.). Combination in Adelomyrmex: Kempf, 1972a: 18.

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



Holotype (other, n=9). HL 0.75 (0.57–0.70) HW 0.66 (0.53–0.66) SL 0.46 (0.38–0.41) EL 0.07 (0.05–0.07) WL 0.76 (0.56–0.70) GL 0.87 (0.68–0.87) TL 3.00 (2.31–3.00) CI 88 (90–100) SI 70 (66–73).

Mandibles with 5 to 7 teeth decreasing in size from apical teeth. Eyes small, with approximately 10–12 ommatidia. Hypostomal tooth small, sharp pointed. Promesonotum evenly convex, dorsal face of propodeum very short. Metanotal groove deep, distinct. Propodeal spines higher than wide. Node with anterior and posterior faces more or less parallel, dorsal face nearly straight. Postpetiole lower than petiole, sub-quadrate, ventral carina well developed. Head, pronotum and mesonotum coarsely reticulate-rugose, with longitudinal rugulae at anterior part of head and more or less on the sides of mesosoma. Transverse rugae between propodeal spines and sides of petiole and postpetiole. Declivous face of propodeum ranges from smooth to covered with transverse rugae. Mandibles smooth or with longitudinal rugae feebly marked on outer half. Mandibles, legs and gaster usually smooth and shining. Hairs yellowish, long and flexuous on the body, more short and appressed on antennae and legs. Body black to dark brown, antennae and legs lighter, brown to yellowish.


HW 0.65 HL 0.75 SL 0.44 EL 0.14 WL 0.83 GL 0.96 TL 3.12 CI 87 SI 68.

As worker with the typical modifications of myrmicine queen. Central anterior portion of promesonotum smooth and shining, posterior area with longitudinal rugulae. Metanotum coarsely rugo-reticulate. Pronotum rugo-reticulate. Sides of mesosoma with striation more or less longitudinal, most of katepisternum smooth and shining.


  • Fernández, F. 2003b. Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae). Zootaxa 361: 1-52 (page 24, worker, queen, described)
  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da regia~o Neotropical. Stud. Entomol. 15: 3-344 (page 18, Combination in Adelomyrmex)
  • Longino, J.T. 2012. A review of the ant genus Adelomyrmex Emery 1897 (Hymenoptera, Formicidae) in Central America. Zootaxa 3456, 1–35.
  • Wheeler, G. C.; Wheeler, J. 1955b. The ant larvae of the myrmicine tribe Leptothoracini. Ann. Entomol. Soc. Am. 48: 17-29 (page 29, larva described)
  • Wheeler, W. M. 1910d. Three new genera of myrmicine ants from tropical America. Bull. Am. Mus. Nat. Hist. 28: 259-265 (page 261, fig. 2 worker described)