Crematogaster nitidiceps Emery, 2007

Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 51

publication ID	21367
publication LSID	lsid:zoobank.org:pub:B08DA0DB-EEC0-4ED3-9FBE-59328B034102
DOI	https://doi.org/10.5281/zenodo.6239952
persistent identifier	https://treatment.plazi.org/id/9F63D7CB-07BB-E1F4-5FBF-B59D499B560F
treatment provided by	Thomas
scientific name	Crematogaster nitidiceps Emery
status	NEW STATUS

Treatment

Crematogaster nitidiceps Emery HNS 1895a. NEW STATUS.

Crematogaster victima var. nitidiceps Emery HNS 1895a: 288.

Crematogaster victima subsp. nitidiceps var. pergens Forel HNS 1911b: 274. Unavailable name. [examined, MHNG; Cordillera, Paraguay (Fiebrig)] .

Crematogaster (Orthocrema) victima subsp. nitidiceps Emery HNS . Emery 1924a: 136.

Crematogaster (Orthocrema) victima nitidiceps Emery HNS . Kempf 1972: 90.

Crematogaster nitidiceps HNS and Crematogaster victima HNS occur in local sympatry across eastern Paraguay. There is no reason to consider the two forms conspecific, and indeed the two forms are likely not even close relatives. I have not examined type material of either form, but Jack Longino has confirmed the identification of both species in my Paraguayan material and concurs with a change in status for C. nitidiceps HNS (Longino, pers. comm.). In Paraguay, the two species differ in a number of characters, including: antennal scapes in repose fail to meet posterior cephalic margin in C. nitidiceps HNS but surpass posterior margin in C. victima HNS ; head in full-face view longer than broad in C. niticeps HNS but broader than long in C. victima HNS ; sculpture of lateral face of pronotum smooth and shining in C. nitidiceps HNS but punctate in C. victima HNS ; dorsum of head bearing only one or two pairs of standing setae in C. niticeps HNS but bearing> 20 standing clavate setae in C. victima HNS . The two forms show additional differences in eye size, petiolar structure, and mesosomal structure.