Platythyrea gracillima Wheeler
Type location Zaïre (Wheeler, 1922: 59, illustrated,
profile and full-face view); worker only described (see Bolton, 1995)
.
Wheeler described it as:
WORKER - TL 9 mm; very slender, head long and narrow, widest forward
of the small eyes; thorax with nearly straight, horizontal dorsum;
petiole, laterally compressed, twice as long as broad and with
markedly concave posterior face. Slightly shining, mandibles more so,
finely and densely punctate, with a few larger but very shallow and
indistinct punctures on the head, thorax and petiole. Hairs absent,
pubescence yellowish gray, very short and fine. Overall black;
appendages and first gastral segment red; remainder of gaster yellow.
Found in the stomach of a toad.
Brown (1975: 52) noted that the type specimen was TL 10.7 mm, HL
2.20 including the clypeus, HW 1.56, SL 2.46; scape surpassing occiput
by 0.94 mm when held straight back; palp formula 4,4; posterior border
of head transverse, straight, except for very slight median concavity;
clypeus convex, anterior border strongly rounded. He provided the
illustration right of the petiole of the type specimen and described
it as a member of a small ill-defined group of species - all with a
gracile (i.e. slender) head and body; long stout antennal scapes;
mesally convex clypeus; slit-shaped propodeal spiracles; unarmed
propodeum; long, narrow petiole node with sharp, strongly projecting
posterodorsal margin. Other members are all from outside Africa, in
Southeast Asia.
Reported from Ghana cocoa leaf litter at the Mampong
Cemetery farm (Room, 1971), seen by Brown, who has the date 20 May
1970.
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