The Ants of Africa
Genus Paratrechina
Paratrechina waelbroecki (Emery)

Paratrechina waelbroecki (Emery)

return to key {link to the Hymenoptera Name Server} Type location Zaïre (Prenolepis waelbroecki, Emery, 1899e: 496, illustrated, male genitalia, male and female described) from Kinshasa, collected by Waelbroeck, x-xi.1896 - male type see below. Forel (1911f: 280) reported "Prenolepis Waelbroeki Emery worker (??) - Congo da Lemba : MAYNÉ (Musée du Congo)"; also from Congo da Lemba by A. Weiss (Wheeler, 1922: 943). .

Emery's (1899e) description is at {original description}.

Oxford University Museum specimens

Paratrechina waelbroecki
B Taylor det.
Central African Republic
P Annoyer
04°22'19.4" N
18°35'49.7" E
360 m; 18h30-7h
Paratrechina waelbroecki
B Taylor det.
Possible worker
E Zassi

03°20'12.0" S
015°28'43.6" E
Village Mah; 24h pitfall trap

{Paratrechina waelbroecki queen}The photomontage is of a queen from the Central African Republic, Dzanga-Sangha NP; 13.i.2005 18h30-7h 04°22'19.4" N 18°35'49.7" E 360 m, collector Philippe Annoyer.

Emery (1899e) described the queen of P. waelbroecki as ferruginous brown, with a darker gaster; the propodeum arcing from the dorsum into a near vertical declivity. The main negative for this association is Emery's comment that the queen had a very shiny dorsum to the alitrunk. Emery noted the male approached the "new species P. longicornis".

Forel (1916: 440) suggested that the workers he described as Paratrechina grisoni actually might be the asexual form of waelbroecki. However, the grisoni worker is very shiny overall, a lot smaller (TL ca 2.0 mm), and has no pubescence.

This queen appears to be a good match to the original descriptions.

Paratrechina waelbroecki maleLaPolla, Hawkes & Fisher (2012: 23) write on this species but, despite giving "Emery, 1899: 496 (queen and male described), note they could not locate any worker specimens from the Forel (1911) report, and state "The queen caste is currently unknown for this species".

A male is shown from
Apart from the usual sexual differences for the genus, the male being somewhat smaller and more slender there is nothing to suggest the queen I report is not that of the species.

{Paratrechina waelbroecki worker?}The photomontage is of a possible worker from the Congo, Lesio-Louna, collector Eric Zassi (12-t-1). The general colour, median carina on the clypeus and gaster pubescence are as on the male above but the scapes do not appear to bear any erect hairs.

© 2007, 2009, 2010, 2013, 2018 - Brian Taylor CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.