Oligomyrmex (Aneleus) silvestrii (Santschi)
Major - Minor - Type location Ghana (Aneleus
Silvestrii n. sp., Santschi, 1914d: 357, illustrated, major &
minor) collected at Aburi by F. Silvestri; also from Guinea,
Mt. Nimba, first male description (Bernard, 1952: 239, illustrated);
major, minor and male described (see Bolton, 1995) .
(1914d) description is at . Bernard's (1952) description of the male
is at .
From Guinea, Bernard (1952) described this
species (as Aneleus silvestrii) as apparently common in the Mt.
Nimba area. Major & minor workers were taken at Nion, 700 m; in the
leaf litter sievings of the north-east forest (Villiers); at Ravin I in
the forest and on the crests of Mount Tô. The male specimen, which he
described and illustrated, came from Nion.
Reported as found in Ghana in cocoa leaf litter
at the Mampong Cemetery farm (Room, 1971).
of a minor is collated from http://www.antweb.org/specimen.do?name=casent0409327
Collection details - Locality: Central African Republic:
Prefecture Sangha-Mbaéré; Réserve Spéciale de Forêt Dense de
Dzanga-Sangha, 12.7 km 326° NW Bayanga; 03°00'18"N 016°11'36"E, 420m.
Collection Information: Collection codes: BLF4100. Date: 10-17 May
2001. Collected by: B.L.Fisher. Method: EC19 sifted litter. Habitat:
rainforest. Transect Type: MW 50 sample transect, 5m Transect Sample
Oligomyrmex (Aeneleus) species undet.
Formerly in my ant guide (Taylor, 1980a: 35) and on this
website as silvestrii but, see above, clearly differing from
Santschi's description and illustration.
Minor - ? Major, previously thought by me, on grounds of
size, to be the minor - TL 1.59, HL 0.45, HW 0.36, SL 0.31, PW 0.23;
now (2004) I feel that it is in a fact the minor from the long scapes -
rarely reaching the mid-point of the face in the soldier morph of any
species. The closest comparison seems to be with the worker of punctatus
from Kenya, although that is about 2/3 the size; another apparently
similar worker is menozzii from Fernando Po I.
Colour orange-brown. Antennae 11-segmented.
Sculpturation of head a loose reticulation, dorsomedial area smooth;
pronotum nearly all smooth; lateral mesonotum and propodeum punctate.
Erect hairs short, fine and sparse, most being on the dorsal alitrunk.
Anterior margin of pronotum well defined; promesonotum in profile near
flat; propodeum on distinctly lower plane, spines well developed,
upturned and triangular. Postpetiole with a flattened profile.
In Nigeria, collected from leaf litter and from
under a chip of wood at CRIN (B. Bolton).