The Ants of Africa
Genus Dorylus - Subgenus Alaopone
Dorylus (Alaopone) conradti Emery

Dorylus (Alaopone) conradti Emery

return to key Males - return to key {link to the Hymenoptera Name Server} Type locality Togo (Dorylus conradti n. sp., Emery, 1895j: 734, worker & queen, illustrated; in Wheeler, 1922) from Bismarckburg, collected by Conradt - see below
subspecies berlandi (Dorylus (Alapone) conradti Em. v. berlandi n. var., Santschi, 1926b: 209, worker) from Ivory Coast, collected at Bingerville by L. Berland - see below
workers and queen known (see Bolton, 1995) .

I have associated the male shown below with this species as it is the only named Alaopone species for which the male is undescribed and this specimen is quite distinct from all the described males. The yellow clay base colour matches that given for the queen and major worker, with a reddish head


{Dorylus (Alaopone) conradti)} TL - Emery's specimens to 6.5 mm, Wheeler's note (1922) was for specimens with TL only 4.5-5.0 mm; the soldier having a coarsely punctate thorax and a very elongate head, which with closed mandibles was nearly twice as long as broad.
Emery's (1895j) description is at {original description} and of the queen at {original description}. Santschi's (1926b) of berlandi is at {original description}.

Also from Cameroun, at Soppo (van Rothkirch) and Zare, Niangara, Lang & Chapin, from the stomach of a frog (in Wheeler, 1922). The last were found in the stomach of a frog.


{Dorylus conradti} 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.

Earlier (i.e. pre-July 2014), I felt the drawn worker from Nigeria might be D. aethiopicus. From Forel's (1907b) description of aethiopicus and his comparative notes between the known workers of Alaopone, notably conradti, it seemed 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. Thus, the type images and the type location show my drawing to be of conradti.


Dorylus conradti majorThe photomontage is of a type major worker collated from http://www.antweb.org/specimen.do?name=casent0903713.


Dorylus conradti minimaThe photomontage is of a minima (?) worker from the type collection collated from http://www.antweb.org/specimen.do?name=casent0903714.


Dorylus conradti queenThe photomontage is of a queen from the type collection collated from http://www.antweb.org/specimen.do?name=casent0903712.


Dorylus berlandi majorThe photomontage is of the berlandi type major worker collated from http://www.antweb.org/specimen.do?name=casent0903713.

Generally similar to the type form (above) but darker and with a distinctly longer head and slightly differently shaped alitrunk and petiole in dorsal view.


Oxford University Museum specimens

Dorylus (Dorylus) braunsi
B Taylor det.
Male

Central African Republic
P Annoyer
1998
16.vi.1998
Dzanga-Sangha
Bayanga-Lidjombo; U.V. 19h-05h; LAYON PK 21 5.0 RCA 3
{album}

{Dorylus conradti male}The photomontage is of a speculative male from the Central African Republic, Dzanga-Sangha NP; collector Philippe Annoyer (CAR 1998).


{Dorylus conradti male}The photomontage is of a further male from the Central African Republic, Dzanga-Sangha NP; collector Philippe Annoyer (CAR 1998).

Contents
2007, 2009, 2011, 2013, 2014 - Brian Taylor CBiol FSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.

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