The Ants of Africa
Genus Polyrhachis
Polyrhachis lestoni Bolton

Polyrhachis lestoni Bolton

return to key {link to the Hymenoptera Name Server} Type location Ghana (Bolton, 1973b: 349, illustrated, full body dorsal view, alitrunk and pedicel profile, anterior petiole); holotype and one other worker from Mt. Atewa (Atewa Forest Reserve), collected by pkd, by D. Leston, 12.vii.1969 - see below; also from Adeiso (P.M. Room, presumably one of his cocoa canopy species, Room, 1971) (Bolton, 1973b) .

{Polyrhachis lestoni}Bolton's modern description (1973b) is at {original description}

WORKER - TL 5.5-5.7 mm; dorsum of head and gaster with a few erect white hairs, everywhere with a sparse greyish pubescence.

{Polyrhachis lestoni}The photomontage is of the holotype worker, collated from

{Polyrhachis lestoni}The photomontage is of a specimen from Ghana, collated from Curiously not listed by Bolton (1973b: 349).

Oxford University Museum specimens

Polyrhachis lestoni
B Taylor det.
E Zassi

03°20'12.0" S
015°28'43.6" E
Wooded Savannah; 24h pitfall trap
Polyrhachis lestoni
B Taylor det.
Rep. of Congo
D De Bakker & JP Michiels
ex Y Braet
05°37'16" S
13°05'54" E
266 m asl
Canopy fogging


{Polyrhachis lestoni queen}The photomontage is of a worker from Congo, Mayombe; collectors De Bakker and Michiels

{Polyrhachis lestoni queen}The photomontage is of a queen from Congo, Réserve de Lésio-Louna; collector Eric Zassi (pitfall trap 11, t 1).

{Polyrhachis lestoni queen}The photomontage is of the queen from Congo after remounting.

{Polyrhachis lestoni}The photomontage is of a specimen from Kenya, compiled from

Note: I suspect this is a closely related species rather than the Ghana type. Overall it is below the size range reported by Bolton (1973b) and the scape index is much lower. From the Antweb photos - HL 1.10, HW 1.02, CI 93; SL 1.10 SI 107; PW 1.07. It also differs in a number of ways. For instance the clypeus of the type has projecting shallow rectangular lobe, the corners of which are minutely dentate and acute; it also has a small U-shaped median notch. The clypeus on this is arcuate with a weak median point. The type has more pronounced pronotal spines. The type has a few erect hairs on the dorsum of the head and gaster, this has no such hairs, and has sparse greyish pubescence.

© 2007, 2008, 2009, 2013, 2014 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.