Camponotus convexiclypeus

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Camponotus convexiclypeus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Camponotus
Species: C. convexiclypeus
Binomial name
Camponotus convexiclypeus
Mackay, W.P., 1997

Camponotus convexiclypeus castype17341 profile 1.jpg

Camponotus convexiclypeus castype17341 dorsal 1.jpg

Specimen labels

Known only from the queen holotype, nothing is known about the biology of Camponotus convexiclypeus.

Identification

A member of the subgenus Myrmostenus.

MacKay (1997) - This is a large species with a head much wider than in the other species in the subgenus (2.52 mm vs. 1.44- 2.00 mm in all other species in the subgenus). The clypeus is strongly convex as seen from above. It has the usual coarse hairs on the vertex and also on the underside of the head.

This species appears to be related to Camponotus sphenocephalus, as the vertex is rounded and the head is densely punctate as in C. sphenocephalus. The head is wider as seen in full face view, thus making it easily separated from C. sphenocephalus.

Keys including this Species

Distribution

Only known from the Peru type locality.

Distribution based on Regional Taxon Lists

Neotropical Region: Peru (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • convexiclypeus. Camponotus (Myrmostenus) convexiclypeus Mackay, W.P., 1997: 197, figs. 3, 4 (q.) PERU.

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

Description

Queen

HL 3.76, HW 2.52, SL 3.76, EL 0.98, clypeus length 1.52, clypeus width 1.22. Indices: SI 100, CI 67, clypeal index 80.

Mandible with 6 teeth and an angle at basal margin; clypeus longer than wide, strongly convex (Fig. 3); anterior clypeal border concave with two lateral lobes; scape extending about 1h length past posterior border of head; head flattened in profile; vertex convex; maxillary palps short, about 1.4 length of distance to foramen magnum; labial palps also short, about V3 length of maxillary palps; mesosoma lengthened as in other species; propodeum with poorly defined angle between two faces, posterior face appearing much shorter than basal face; petiole thin, with convex anterior face and straight posterior face (Fig. 2).

Hairs sparse, but coarse, some bent at angles and long (0.70-0.90 mm), area from vertex to upper edge of frontal carinae with about 20 coarse hairs, clypeus without hairs except for fringe at anterior border, about 20 hairs on underside of head, scapes with scattered erect hairs, up to 0.25 mm in length, dorsum of mesosoma with about 20 hairs, propodeum at point where faces meet with 6 hairs on left side, three on right side, node of petiole with three hairs on left, one on right, gaster with scattered hairs at the edges of each tergum but also on the other surfaces; decumbent pubescence almost absent.

Sculpture coarse on bead, consisting of dense punctures, similar to that of C. sphenocephalus, remainder of body smooth and shining.

Color medium brown, head, including mandibles, scapes and funiculi, darker brown.

Type Material

Holotype 9, Peru, Monson Valley, Tingo Maria, 11-XII-1954; E. I. Schlinger & E. S. Ross collectors.

Etymology

Refers to the strongly convex clypeus.

References