Aenictus asantei Campione, Novak & Gotwald
Type location Ghana (Campione, Novak & Gotwald, 1983:
873, illustrated, workers and queens)
.
Campione, Novak & Gotwald's (1983) description is at
.
Recognisable by the large size; presence of denticles on the
anterior margin of the clypeus and rugous sculpturation of the
posterior two-thirds of the alitrunk.
WORKER - TL 3.47-3.89 mm HL 0,63-0.77 HW 0.63-0.72 AL 1.10-1.26
Head glossy, with puncturation, parafrontal ridges (around
antennal insertions) well developed anteriorly terminating in a
minute spine, frontal carinae expanded anteriorly to form thin
flanges; clypeus with distinct toothed anterior border. Mandible
flattened, linear, striated, with sharp apical tooth, subapical
teeth absent. Alitrunk without distinct sutures. Pronotum glossy
except for densely punctate anterior dorsal slope. Posterior
two-thirds of alitrunk sub-opaque with well-developed longitudinal
rugae. Propodeum with transition from dorsum to declivity with a
sharp ridge extending laterally and bordering declivity, face of
declivity densely punctate. Subpetiolar process triangular with
rounded apex, usually directed ventrally or posteriorly. Gaster
glossy without obvious puncturation. Colour most of body dark
reddish-brown to reddish-orange, appendages lighter; pilosity
moderately abundant, with erect to suberect hairs.
From cultivated land at Legon, University of Ghana farm, in
coastal scrub savannah. |
Nigeria specimens (as Aenictus rotundatus
Taylor, 1980b: 5). WORKER. TL 2.86 mm, HL 0.62, HW 0.50, SL 0.42,
PW 0.34
Colour orange-brown, shiny, polished appearance. Sculpturation
limited to rugopuncturation on the lateral mesonotum, propodeum
and lateral area of the pedicel. Erect hairs long, fine and
moderately abundant. Head in front view with convex sides rounding
into a slightly convex occipital margin. Anterior margin of
clypeus minutely denticulate. Mandibles with a slightly elongated
triangular apex, a moderate preapical tooth and rest of inner
margin denticulate. Propodeum with a pronounced margin, declivity
concave in profile. Subpetiolar process elongated and flattened
with an anterior triangular apex; subpostpetiolar process similar
but shorter.
Collected by me from leaf litter and foraging in single file up a
cocoa tree at the Cocoa Research Institute of Nigeria, Idi Ayunre.
Eguagie (1971) found it also at Araromi near Ibadan. |