Technomyrmex (Engramma) zimmeri (Forel)
Type location Tanzania
(Engramma Zimmeri n. sp., Forel, 1911d: 370, worker) collected
Amani, by Zimmer, combination in Technomyrmex by Shattuck
(1992b) - no images on Antweb (February 2015)
described (Bolton, 1995) .
Forel's (1911d) description is - .
WORKER - TL 3.4-3.5; mandibles smooth, shiny, lightly
puncturate, with at least 10 teeth; strongly crossed when closed.
Clypeus short, slightly extended between the frontal carinae; widely
and very feebly scalloped in the median third of the anterior border.
Frontal area triangular and feebly defined. Frontal carinae separated
by the distance of each from the sides of the face. No post-clypeal
notch. Head with strongly convex sides, strongly narrowed anteriorly,
the enlarged, then a little narrowed at the occiput, strongly scalloped
posteriorly, slightly wider than long at maximum. Eyes convex - bigger
than lujae and laurenti, about the same as ilgi;
situated in the anterior two-fifths of the head. Scape surpassing the
cocciput by almost a quarter of its length. Funiculus narrowing towards
the apex; all the segments longer than wide, the second and
pentultimate smaller. Thorax proportionately narrower and more
elongated than the others. Promesonotum slightly convex, profile
interrupted by a strong transverse impression at the suture. Metanotal
groove deep with spiracles at the base. Propodeum in a single hump
longer than wide, dorsum very convex. Scale entirely welded (soudée);
pedicel very elongated. Gastral orifice inferior.
Head and thorax subopaque; gaster shiny, finely reticulate; thorax more
strongly reticulate; head densely puncturate. Whole of body and
appendage covered with very fine pruinose pubescence, but not
concealing the sculpture. Erect hairs sparse and very fine on the body;
lower legs and antennae without erect hairs.
Uniform red yellow, gaster black, with the segments narrowly bordered
Single worker from Amani, Tanzania, by Zimmer.
Resembling Technomyrmex semiruber but that has the gastral apex
terminal; appendages with erect hairs, the head shiny and the propodeum
much shorter and more domed. I [Forel} place this species provisionally
in the genus Engramma, but without knowing its gizzard
Bolton's brief note (2007: 42), not illustrated is at .