Sphinctomyrmex rufiventris
Santschi
Type location Benin (Santschi, 1915c: 244, illustrated,
male), from Djougou, Kouandé (by Desanti), also from Kika
(by Ribot) (in Wheeler, 1922; see Bolton, 1995); male only
described .
NOTE - Bolton (1990a and 1990c) provided an illustration of the
lateral alitrunk and gaster of what is labelled as this species
and is a worker. Where it came from and who determined it without
any description was not explained. In the first paper he writes of
there being two species from Africa, so perhaps it can be
assumed that the forms described below as from Gabon and Ivory
Coast are of this species!
Santschi's (1915c) description is at
.
My translation: MALE. TL 4.5 mm; head, excluding the eyes, rectangular, a
quarter longer than wide, with a straight posterior border. Eyes
very convex, occupying anterior three-quarters of the sides of the
head; interval between the eye and the lateral ocellus equal to
the ocellus diameter. Clypeus border tranverse medially, raised
centrally in a rounded lobe and carina of a fine median lamella in
its posterior half. Frontal carinae lamellate, arcuate, strongly
convergent posteriorly where they form a slightly raised median
ridge reaching the near to the median ocellus and on each side
delimiting a shallow antennal scrobe. Scape reaching the median
ocellus, as long, with the condylar bulb, as the second and third
funiculus segments combined; first funiculus segment no longer
than the scape width; following segments subequal and three times
longer than wide. Mandibles without teeth, internal angle very
rounded, external border feebly concave in the basal half and
slightly convex apically. Mesonotal suture impressed. Mayr's notch
distinct. Propodeal dorsum convex, declivity concave and
distinctly edged, longer than dorsum, smooth. Wings hyaline with
veins and fringe pale yellow; closed cubital cell, radial cell
incomplete. Petiole as high as long, node globulose, as wide as
long; with subpetiolar appendage a truncated forward pointing
tooth. Postpetiole with a small ventral anterior tooth, node as
high as other gastral segments, but clearly slimmer, distinctly
longer than wide and not more constricted posteriorly. Genitalia
hidden. Colour reddish brown; appendages and gaster reddish
yellow; dorsum of gaster a little darker brown. Head and thorax
with large irregular puncturations, more or less confluent on a
smooth ground; puncturation of gaster finer and more spaced;
sides of propodeum rugulo-reticulate. Fine long, decumbent
pilosity, more erect on gaster; legs and antennae pubescent,
latter very finely. |
Specimens
from Djougou, Kouandé, Benin [Dahomey], by Desanti,
2 males; Kika, Benin, by Lt. Ribot, 2 males; Sikasso [Sikosso],
Mali [French Sudan], by Chevalier, 1900, 2 males.
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