The Ants of Africa
SUBFAMILY PONERINAE - Genus Psalidomyrmex
Contents - Ponerinae - PONERINAE Introduction

Genus Psalidomyrmex André (1890: 314)

In Tribe PONERINI. Plectroctena group

{short description of image}Diagnostic Features - Medium to large ants. Basic sculpture of large shallow foveolae or pits, from each of which a single seta arises, interspaces between the foveolae usually finely striate. Mandibles edentate to weakly toothed, varying in shape from subtriangular to falcate, always with the apex prolonged into a long, acute point. Basal mandibular groove distinct. Promesonotal suture distinct and mobile. Middle and hind tibiae with a single pectinate spur, claws simple. André's (1890) genus description is at {original description}.

Genus revised by Bolton (1975b), the genus members were described as rare and restricted to the forest zones (Bolton, 1973a).

Bernard (1952), whose findings included foveolatus from savanna, also described a queen of what he took to be a new species - "clavicornis" - but this was reassigned to the status of junior synonym of Pachycondyla talpa (by W.L. Brown, unpublished?, in Bolton, 1975b). Bolton & Brown (2002) have added a few extra findings.

Antennal variation as illustrated by Bernard (1952).

Key to African species (adapted from Bolton, 1975b):

1 Mandibles falcate, masticatory margin concave and with a number of short teeth 2
-- Mandibles subtriangular, with an elongate apical tooth, otherwise without teeth 4
2 {short description of image}In dorsal view the first gastral tergite strongly narrowed anteriorly; large species (HW > 2.50 PW > 1.70); mature adult black; TL 14.8-15.8 mm West Africa, Congo Basin, east into Uganda - reichenspergeri
-- In dorsal view first gastral tergite not narrowed anteriorly; smaller species (HW < 2.50 PW < 1.70); adult colour red-brown 3
3 {short description of image}Spaces between foveolae on pronotal dorsum and first gastral tergite densely striate; antennal scapes relatively short (SI < 75); eyes small diameter > 0.26; TL 8.5 mm; dark red-brown, shiny West Africa - foveolatus
-- {short description of image}Spaces between foveolae mostly smooth and shining; antennal scapes relatively long (SI > 80); eyes larger, diameter > 0.26; TL 9.6-11.4 mm; deep red-brown Ghana - sallyae
4 {short description of image}Antennal scapes relatively long (SI 90-102); head relatively narrow; petiole longer than broad; TL 13.6-14.6 mm; black Cameroun & Congo Basin - wheeleri
-- Antennal scapes shorter (SI 79-88); head relatively broad; petiole broader than long 5
5 {short description of image}Lobes of frontal carinae smooth and shining at level of antennal insertions. Median clypeus smooth or with transverse striations; TL 10.8-12.2 mm Principé & Cameroun - feae
-- {short description of image}Lobes of frontal carinae uniformly striate. Median clypeus longitudinally striate; TL 11.4-16.2 mm; black West Africa & Congo Basin - procerus
Contents PONERINAE Introduction
© 2007, 2009, 2012 - Brian Taylor CBiol FSB FRES
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