Cyphomyrmex bigibbosus

Kempf, W. W., 1968, A new species of Cyphomyrmex from Colombia, with further remarks on the genus (Hymenoptera, Formicidae)., Revista Brasileira de Biologia 28, pp. 35-41: 40

publication ID

4586

persistent identifier

http://treatment.plazi.org/id/0EA20DA9-23A5-B50D-CD4A-8EB9C0ED1FEF

treatment provided by

Christiana

scientific name

Cyphomyrmex bigibbosus
status

 

3. The bigibbosus  HNS  problem -

Previously the Amazonian bigibbosus  HNS  was taken as a single species that included aside from the typical form also three subspecies: faunulus  HNS  , tumulus  HNS  and petiolatus  HNS  , all based on single nest series, and more or less sympatric in their distribution. Having seen the types of the forms involved, except for the nominal subspecies, and nearly a hundred specimens belonging to this complex, I was able to distinguish what seems to be two sympatric species, a smaller one with posteriorly excised postpetiole, and a slightly larger one with the posterior border of postpetiole entire, (for additional characters, see Kempf, 1964: 20-25) which were respectively given the oldest available names. If not entirely satisfactory, this classification allowed for a clear-cut separation of all material which so far has come to my attention, Surely, I did not see the type of the nominal bigibbosus  HNS  , but Weber's scant information (1966: 167) on the type falls in line with my definition, because it is even smaller than the smallest bigibbosus  HNS  specimen examined by myself. Weber states that by comparison between the types, his own tumulus  HNS  (placed into synonymy of bigibbosus  HNS  by myself) appeared to be subspecifically distinct, but fails to give any reason for it. The few characters which he cites in favor of the validity of the other race, petiolatus  HNS  , are exactly the same ones which made me to separate it from bigibbosus  HNS  and to place it into synonymy of faunulus  HNS  . In short, as long as there is no factual evidence to the contrary, I shall maintain bigibbosus Emery  HNS  and faunulus Wheeler  HNS  as separate species, tumulus Weber  HNS  as a synonym of the former and petiolatus  HNS  of the latter.

4. Weber's notes on Cyphomyrmex  HNS  types. Aside from the comments on bigibbosus  HNS  , already discussed, there is little else to say. However, I do object to his statement that daguerrei Santschi  HNS  and olitor Forel  HNS  are related with or close to, rimosus  HNS  . Even a perfunctory perusal of my revisionary papers will show that such a statement is misleading, since both (types of each examined by myself) belong doubtless to the well-circumscribed strigatus-group (cf. Kempf, 1964: 28-34).