Crematogaster ampla

Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150: 128-129

publication ID

20256

publication LSID

lsid:zoobank.org:pub:9813210B-5B9F-4FDE-86DD-3AE55166EC9C

persistent identifier

http://treatment.plazi.org/id/8C796113-5D42-59A2-637B-E4C7890A655D

treatment provided by

Thomas

scientific name

Crematogaster ampla
status

NEW STATUS

Crematogaster ampla  HNS  NEW STATUS

Crematogaster brevispinosa var. ampla Forel  HNS  , 1912: 211. Syntype workers: Colombia, Magdalena, Santa Cruz near Santa Marta (Forel) [ MHNG]  (examined, worker here designated LECTOTYPE). Emery, 1922: 134: combination in C. (Orthocrema)  HNS  .

This species has a distinctive character that distinguishes it from all other Crematogaster  HNS  . The fourth abdominal tergite has a subtriangular impression posterior to the postpetiolar insertion. This impression is completely smooth and shining, contrasting with the surrounding granular microsculpture. On some small workers the fourth abdominal tergite is completely smooth and shining, but the triangular impression is still distinct. In all other Crematogaster  HNS  there may be an impression anterior to the postpetiole, but not posterior to it. Other characters are similar to crinosa  HNS  , including a long, acute, anteroventral petiolar tooth, abundant setae on the fourth abdominal tergite, dorsal and posterior faces of propodeum meeting at an angle, and a strongly arched promesonotum. Unlike other crinosa  HNS  complex species, the scapes and tibiae sometimes have one or two erect setae, especially on large workers. I have seen material from three widely separated localities in Colombia (Departments of Magdalena, Huila, and Valle) and one collection from Bolivia.

The syntypes at MHNG were a combination of ampla  HNS  and crinosa  HNS  , necessitating designation of a lectotype.

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle