Dorylus (Alaopone) aethiopicus Emery
Type location not given, noted as Sudan, Ethiopia
(Abyssinia) and Tunisia (Dorylus (Shuckardi) atriceps
subspecies aethiopicus n. sp., Emery, 1895j: 741, male;
raised to species by Santschi, 1923e: 277); male & worker
described .
Emery's (1895j) description of the male is at
Forel's (1907b: 201, worker) description of the worker (as a
variety of atriceps) from Tunisia (Kairouan, by F.
Santschi) is at
.
Finzi (1940: 156) illustrated the male genitalia from specimens
collected in Libya; this is at
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Nigeria species (as Dorylus (Alaopone) species 1, Taylor, 1980b: 9)
TL 6.71-2.74 mm. Largest morph HL 2.09, HW 1.28, SL 0.49, PW 0.72
Colour orange-brown, mandibles darker. Sculpturation all over of
scattered hair-pits, giving rise to fine pilous hairs. Erect hairs
only at anterior and posterior apices of body. Head of larger
morphs elongated and near rectangular. Alitrunk completely flat
dorsally. Subpetiolar process a triangular spine, slightly hooked
to the rear in largest morph, straight in medium morphs and blunt
in smallest. Collected from under bark (presumably of dead
wood) at the Cocoa Research Institute of Nigeria, Idi Ayunre, by B. Bolton.
From Forel's (1907b) description of aethiopicus and his
comparative notes between the known workers of Alaopone,
notably conradti, it seems the head of aethiopicus
is longer and more deeply impressed posteriorly, with the thorax
dorsum flatter and its sides parallel. Also with aethiopicus
seen from above the sides of the pro- and mesonotum are slightly
convex, such as to give a median concavity in the sides of the
thorax. Then with conradti the thorax has a more dense and
elongated puncturation, also the petiole is less trapeziform (in
dorsal view) and the mandibles are thicker. The overall features
and colouration suggest that this form may well be aethiopicus. |