|The Ants of
SUBFAMILY FORMICINAE - Genus Acropyga
In Tribe PLAGIOLEPIDINI.
Diagnostic Features - Antennae 11-segmented. Palp formula 1,3 or 2,3. Eyes minute. Mandibles narrowly triangular, not overhung by the clypeus. Propodeum and petiole unarmed, the latter is an unarmed scale.
Roger's (1862a) genus definition is at .
Described by Bolton (1973a) as small, depigmented yellowish ants, which are hypogaeic and uncommon. Bolton (1994) had an illustration (bottom). Prins (1982: 237 ff) reviewed the situation in Southern Africa and provided much information and illustrations - see . LaPolla & Fisher (2005) recognised a third species, A. bakwele from Gabon.
Key to separate workers (following LaPolla & Fisher, 2005) -
|1||HW < 0.55 mm; note the specimen from Kenya in the photo has a slightly different head shape to the type drawing||.|
|.||Eritrea - silvestrii|
|--||HW > 0.55 mm||2|
|2||HW < 0.7 mm; TL < 3 mm; head without median ocellus||.|
|.||southern Africa, possibly Central African Republic - arnoldi|
|--||HW > 0.7 mm; TL > 3 mm; head with median ocellus||Gabon - bakwele|
Acropyga species (indet.)
Found in leaf litter (17 workers) and soil (10 workers) at four sites in Ghana (Sui River Forest Reserve, primary forest; Ofinso, cocoa; Effiduase, cocoa; Bunso, primary forest) by Belshaw & Bolton (1994a, b).
As it was unlabelled, the image right (if available) may be of this Ghanaian source but I cannot be certain.
© 2007, 2008, 2010, 2013, 2017 - Brian Taylor
CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.