Polyrhachis gerstaeckeri Forel

Type location Tanzania (Polyrhachis Gerstaeckeri n. sp., Forel, 1886f: 197, worker) from Tanzania, Zanzibar, Hildebrandt - see below
  junior synonym striolatorugosa (Polyrhachis cubaensis Mayr nov. var. striolato-rugosa, Mayr, 1893: 195, worker; synonymy by Rigato, 2016: 22) from Tanzania, Zanzibar - no images on Antweb (December June 2018)

Forel's (1886f) description of gerstaeckeri is at . Mayr's (1893) description of striolatorugosa, correction of original type location and synonymisation of gerstaeckeri is at . Bolton's modern description (1973b) of cubaensis is at . Rigato's (2016) redesignation is at is at .

WORKER - TL 6.4-7.5 mm, HL 1.77-1.85, HW 1.59-1.67, SL 1.75-1.88, PW 1.33-1.41
Transverse ridge on propodeum raised medially into a small tooth or tubercle; propodeal spines directed upwards and upcurved. Colour black, appendages brown and funiculi yellow-brown.

The photomontage of the type worker of gerstaeckeri is collated from http://www.antweb.org/specimen.do?name=focol258.

From the scales on the original images, this is about 1.3 X bigger than the Rigato Figure 6 specimen, shown below.  The Antweb scale for CASENT0235679 with the full face view equates to HL 1.25, HW 1.12. Rigato (2016), however, gave - type HL 1.60, HW 1.43; Figure 6, HL 1.50, HW 1.38

The photomontage of a type worker of gerstaeckeri is collated from http://www.antweb.org/specimen.do?name=casent0910945. Although from the Forel collection the location, Delagoa, is in Mozambique.

The photomontage of a worker of gerstaeckeri is collated from http://www.antweb.org/specimen.do?name=casent0235679. The specimen in Rigato (2016) Figure 6.

Oxford University Museum specimens

Polyrhachis cubaensis B Taylor det.

Tanzania G McGavin tree 3-68

16.i.1996 Mkomazi 3°57.996' S 37°48.128' E

pkd collection from Terminalia brownii

3

The photomontage is of a worker from Tanzania, Mkomazi Game Reserve; collector G McGavin (tree 3-68).