Dorylus (Dorylus) striatidens Santschi

- type form
- Dakar form
Type location Senegal (Santschi, 1910g: 745, illustrated, worker) collected at Casamance, by Claveau; worker only known (see Bolton, 1995). Also from Dakar, by Melou (Wheeler, 1922) .

Santschi's (1910g) description is at .

As Santschi suspected, this appears to embody two species, with the larger Dakar form being separated from the true Casamance form. The latter appears to be matched by the specimens I drew from CRIN, Nigeria, and the Sudan specimen (bottom).

Nigeria specimen (as Dorylus (Dorylus) species A, Taylor, 1978b: 17). WORKER. TL 5.57-2.83 mm. At least four morphs; largest HL 1.49, HW 1.37, SL 0.59, PW 0.78
Colour yellow-brown, apices darker. Sculpturation of scattered small hair-pits on dorsal surfaces; lateral alitrunk very finely reticulostriate, lateral petiole finely reticulate. Erect hairs sparse, on clypeal margin and posterior margins of gastral segments; relatively abundant pilosity. Head with slightly convex sides, widest at midlength. Mandibles with three moderate, blunt teeth. Clypeal margin slightly produced medially, frontal carinae highly raised with curious posterior processes. Promesonotum slightly convex. Subpetiolar process flattened with triangular forward pointing apex.
I collected it from leaf litter, dead wood on ground, and a possible nest on a cocoa tree crevice at the Cocoa Research Institute of Nigeria, Idi Ayunre.

The photomontage is of a specimen from Sudan, 10 km south west of Thar Jath, South Sudan Province, collector Awatif Omer, 2006. Matching the type Casamance form of Santschi (1910g).

Other images can be seen in the folder at -