Myrmicaria striatula Santschi
Type location Tanzania
(named first in Santschi, 1914b: 116, but without description - given
as "Myrmicaria striatula Stitz; Wiss. Erg. Deutsch.
Zentr.-Afrika Exped., 1907-1908, Bd. III, Zool., I, p.382 (1910)" - the
species in that reference was Myrmicaria
striata; Santschi, 1925c: 152, illustrated, worker, wrongly as
male in text, illustration is labelled worker), Kilimanjaro;
worker only described (see Bolton, 1995) .
Santschi (1935) reported a single worker from Zaïre,
at Mayumbe, collected by R. Mayné in 1917; noting a light variety.
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The
Santschi description (comparisons mostly with natalensis) is at
WORKER TL 5.5-6 mm. Colour dark reddish brown;
mandibles more reddish; gaster blacker; shiny; central area of face
smooth than natalensis. Sides of head slightly more finely and
abundantly rugulose and the spaces smoother and more reduced, as on the
sides of the thorax. Lateral rugae on the mesonotum continue to midway
when they cup into an arc. Abdomen and legs smooth; scapes striated;
remainder as natalensis. The antennal funiculi, however, differ
in the segments being short as in fusca. Propodeum feebly
carinate and smooth without a distinct median ridge, but with several
posterior striae. The mesokatepisternal tooth are slightly more robust.
The mesonotal lobes are raised in profile, but less than natalensis
and more than striata. Metanotal grove quite
deep, the lobe on the side of the dorsal face is little developed; in
profile this border appears straight save for slight convexity and
often is missing. Propodeal spines fine, rectilinear, as long as
two-thirds the propodeum dorsum. Petiole pedicel longer than the node;
node nearly twice as high as long, anterior and posterior faces
symmetrical but feebly converging; summit like a donkey or hog-back
(hump?), rounded in profile. Postpetiole almost as high but slightly
shorter than petiole, anterior face slightly more oblique but less so
than in striata. Placed with natalensis, striata
and fusca but perhaps nearest the last.
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