Leptomyrmex neotropicus

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Leptomyrmex neotropicus
Temporal range: Burdigalian, Early Miocene Dominican amber, Dominican Republic
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Tribe: Leptomyrmecini
Genus: Leptomyrmex
Species: L. neotropicus
Binomial name
Leptomyrmex neotropicus
Baroni Urbani, 1980

Baroni Urbani 1980d-2Leptomyrmex-neotropicus.jpg

A species known from a Dominican amber fossil.

Photo Gallery

  • Leptomyrmex, Dominican amber.jpg
Evolutionary Relationships

Leptomyrmex neotropicus (fossil only)

Leptomyrmex relictus


Leptomyrmex burwelli

Leptomyrmex dolichoscapus


Leptomyrmex mjobergi

Leptomyrmex varians

Leptomyrmex unicolor

Leptomyrmex flavitarsus

Leptomyrmex puberulus

Leptomyrmex darlingtoni

Leptomyrmex fragilis

Leptomyrmex niger

Leptomyrmex erythrocephalus

Leptomyrmex wiburdi

Leptomyrmex cnemidatus

Leptomyrmex nigriventris

Leptomyrmex tibialis

Leptomyrmex geniculatus

Leptomyrmex nigriceps

Leptomyrmex pallens

Leptomyrmex rufithorax

Leptomyrmex rufipes

Leptomyrmex rothneyi

Leptomyrmex ruficeps

Based on Barden et al., 2017. Note only selected Leptomyrmex species are included.



This taxon was described from Dominican amber, Dominican Republic (Burdigalian, Early Miocene).



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

  • neotropicus. †Leptomyrmex neotropicus Baroni Urbani, 1980d: 4, figs. 1-5 (w.) DOMINICAN AMBER (Miocene). Combination in Camponotus: Wilson, 1985c: 34; in Leptomyrmex: Baroni Urbani & Wilson, 1987: 2. See also: Lucky & Ward, 2010: 62.

Type Material

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

Lucky and Ward (2010) - Dominican Amber: 2 workers Philip S. Ward Collection, Museum of Comparative Zoology. These amber specimens resemble Leptomyrmex in the following characters: hypostomal notch present and u-shaped, scapes exceeding the postocular margin by approximately half their length, many teeth and denticles, integument thin and lacking sculpture, limbs long and slender, body overall gracile, elongate. These characters suggest an affinity with the extant Leptomyrmex species, but given the disjunct distribution of the fossils and the living species it is likely that L. neotropicus belongs to a stem lineage of this genus, a fact which should be taken into account when using the fossils for age calibrations in phylogenetic studies. The sister group of Leptomyrmex is a clade comprised of the two Neotropical genera, Forelius and Dorymyrmex, and it has been suggested that L. neotropicus might represent a stem species in the latter clade (Ward et al. 2010).