Myrmelachista brevicornis

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Myrmelachista brevicornis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Myrmelachistini
Genus: Myrmelachista
Species: M. brevicornis
Binomial name
Myrmelachista brevicornis
Wheeler, W.M., 1934


Worker with nine antennal segments. See Longino's comments regarding Myrmelachista of South America.


Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality), Peru.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




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

  • brevicornis. Myrmelachista brevicornis Wheeler, W.M. 1934g: 199 (w.) BRAZIL.

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



Length 1.2 mm.

Resembling Myrmelachista guyanensis in the shape of the head, but the mandibles are smaller, much less convex, with smaller and more nearly sub equal teeth and distinctly shorter antennae. The scapes scarcely extend beyond the posterior orbits of the small, flat eyes; joints 2-5 of the funiculi even shorter than in guyanensis and the two basal joints or the clubs broader than long and together much shorter than the large, swollen terminal joint. Thorax like that of guyanensis but the mesonotum less depressed, more distinctly elevated above the epinotum; the petiolar scale narrower, with straight subparallel sides and only feebly sinuate superior border; posterior peduncle scarcely developed.

Sculpture and pilosity as in guyanensis but there are a few short, erect hairs on the thorax and the pubescence on the tibire and scapes is longer and somewhat oblique.

Head, thorax and petiole rather bright yellowish-red; gaster black; antenna: and legs reddish-yellow; mandibular teeth reddish.

Type Material

Two specimens from Santarem, Brazil, received many years ago from Staudinger and Bang-Haas. These specimens had passed through Emery's hands but he had refrained from describing them.