Camponotus crassus Mayr

Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55 : 47

publication ID

21367

publication LSID

lsid:zoobank.org:pub:B08DA0DB-EEC0-4ED3-9FBE-59328B034102

DOI

https://doi.org/10.5281/zenodo.6239906

persistent identifier

https://treatment.plazi.org/id/DE76D513-58B2-2636-FD28-2B3C6ADDD235

treatment provided by

Thomas

scientific name

Camponotus crassus Mayr
status

 

Camponotus crassus Mayr View in CoL   HNS 1862.

Camponotus crassus Mayr   HNS 1862: 670. [w syntypes examined, NHMW; Novara , Rio de Janeiro, Brazil] .

Camponotus senex r. crassus Mayr   HNS : Forel 1879: 99.

Camponotus vezenyii Forel   HNS 1907b: 34. NEW SYNONYMY. [holotype w examined, MHNG; Asunción, Paraguay ( Vezényi)] .

Camponotus crassus subsp. vezenyii Forel   HNS . Forel 1911b: 291.

Camponotus (Myrmobrachys) crassus Mayr   HNS . Forel 1914a: 270.

Camponotus (Myrmobrachys) crassus r. vezenyii Mayr   HNS . Forel 1914a: 271.

Camponotus vezeni Forel   HNS . Emery 1920a: 260.

Camponotus (Myrmobrachys) crassus var. picticornis Santschi   HNS 1936: 421. NEW SYNONYMY.

Camponotus vezenyii Forel   HNS . Kempf 1972: 54.

Camponotus (Myrmobrachys) crassus var. picticornis Santschi   HNS . Kempf 1972: 51.

Camponotus crassus   HNS is the most frequently recorded Camponotus   HNS from Paraguay. This ant appears to be found in every terrestrial habitat type with woody vegetation of sufficient diameter to house the arboreal nests in hollow twigs. The coloration of the antennal scapes shows slight variation among collections, from testaceous to dark reddish brown. The amount of pilosity on the mesosomal dorsum also varies somewhat. Forel’s type of C. vezenyii   HNS from Asunción is slightly more pilose and has lighter colored scapes than Mayr’s type of C. crassus   HNS , but it still falls well within the range of variation observed in Paraguay and is synonymized here.

Santschi (1936) distinguished the variety C. picticornis   HNS from C. crassus   HNS on the basis of antennal scape color. I was unable to view Santschi’s types of C. picticornis   HNS from Loreto, Argentina, but several other series from northern Argentina at NHMB identified by Santschi as C. picticornis   HNS are within my conception of C. crassus   HNS .

NHMW

Austria, Wien, Naturhistorisches Museum Wien

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Camponotus

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