The Ants of Africa
Genus Crematogaster
Crematogaster (Crematogaster) chiarinii Emery

Crematogaster (Crematogaster) chiarinii Emery

return to key {link to the Hymenoptera Name Server} Type location Ethiopia (Cremastogaster Chiarinii n. sp., Emery, 1881a: 271, illustrated, worker; Forel, 1892e: 353, queen & male) from Kaka - see below
junior synonyms (here)
affabilis (Cremastogaster Chiarinii Em. (i) var. affabilis n. var., Forel, 1907c: 142, worker; raised to species Collingwood, 1985: 260; reverted to junior synonym here) from Somalia, Dauele Region, M de Rothschild - see below
taediosa (Cremastogaster taediosa n. spec., Forel, 1894b: 98, worker; as subspecies of chiarinii by Emery, 1915g: 12) from Ethiopia, Südabessinien, Ilg - see below
all forms described (see Bolton, 1995) .

{Crematogaster chiarinii}Emery's (1881a) description is at {original description}. Forel's (1892e) descriptions of the queen & male is at {original description}. Forel's (1894b) description of taediosa is at {original description}.

Note: v-nigra (Cremastogaster chiarinii Em. var. V. nigrum n.var., Forel, 1910e: 434, worker - NOTE the "nigra", Forel, 1910e: 434, worker, in Bolton, 1995: 158, is an error) from Congo appears to be a species of Atopogyne and I have placed it there as a definitive species Crematogaster (Atopogyne) v-nigra. Forel's (1910e) description of v-nigra is at {original description}. He drew attention to the postpetiole being entire without a median impression.

Note: Although correct at the time, my diagnosis of the fresh workers from Ethiopia, below, as chiarinii, appear to match the types of v-nigra.

Note: In 2001, with fresh specimens from Ethiopia that match Emery's description and drawing, it seemed clear that the type form is unicoloured dark brown to near black and has carton nests on trees. With fresh specimens from acacia in Sudan that appear to be close to the description given by Emery (1896i) for the variety cincta, I separated the distinct forms with a general yellow-brown or red-brown colour and darker gaster, with paler appendages, also short propodeal spines to a separate species Crematogaster cincta. Thus I have moved cincta, aethiops, bayeri, sellula and subsulcata. The availability of type images from Antweb (February 2014, December 2014) confirm my opinion. The images also make it seem likely that Crematogaster affabilis is no more than larger workers of chiarinii.

Wheeler (1922) has many records from East Africa and into Saudi Arabia. It is likely that those were mostly if not all cincta.

Collingwood (1985) separated it from other species recorded from Saudi Arabia by - head wider than long; petiole about as wide as long; alitrunk paler than head or gaster, propodeal spines more than 0.2 mm; also more strongly sculptured than affabilis (type location Somalia); mesonotum with keel.

{Crematogaster chiarinii}The photomontage of a worker from the type collection is collated from

{Crematogaster chiarinii taediosa}The photomontage of the taediosa type worker is collated from

Differing only in being slightly smaller than the type form worker.

{Crematogaster affabilis}Forel's (1907c) description of affabilis is at {original description}.

Collingwood (1985, illustrated), for specimens from Saudi Arabia, had head only slightly wider than long; propodeal spines long and thin, at least 0.25 mm; body with smooth sculpture, unicolorous dark brown to black. It is difficult to judge without seeing specimens from Saudi Arabia but Collingwood's drawing does not match the type worker.  It also seems from the type images that affabilis was described from large workers of Crematogaster chiarinii, the head shape being similar to but smaller than that of the queen I show of the latter.

{Crematogaster affabilis} The photomontage of the type worker is collated from

Oxford University Museum specimens

Crematogaster (Crematogaster) chiarinii
B Taylor det.
Nuru Adgaba

Hand collected, large carton nest on tree
1650 m

6 workers
4 queens

{Crematogaster chiarinii}The photomontage is of a worker from Ethiopia, Bonga; collector Nuru Adgaba.

{Crematogaster chiarinii queen}The photomontage is of a queen from Ethiopia, Bonga; collector Nuru Adgaba.

{Crematogaster chiarinii queen}The photomontage is a piece of the carton nest of the colony from Ethiopia, Bonga; collector Nuru Adgaba.

© 2007, 2008, 2009, 2010, 2013, 2014, 2015, 2016 - Brian Taylor CBiol FRSB FRES
11, Grazingfield, Wilford, Nottingham, NG11 7FN, U.K.