Pheidole rhinoceros

Longino, J. T., 2009, Additions to the taxonomy of New World Pheidole (Hymenoptera: Formicidae)., Zootaxa 2181, pp. 1-90: 70-71

publication ID

22820

publication LSID

lsid:zoobank.org:pub:F84E23F9-9FE9-4728-B51D-3078D6EDB7E2

persistent identifier

http://treatment.plazi.org/id/7BA5785D-7BFB-EBA1-240B-12BFC7698DA7

treatment provided by

Christiana

scientific name

Pheidole rhinoceros
status

 

Pheidole rhinoceros  HNS 

Pheidole rhinoceros Forel  HNS  , 1899: 73, pl. 3, fig. 23. Lectotype major worker (here designated, as labeled by Wilson 2003) and associated paralectotype minor worker: Panama, Bugaba, 800-1500ft (Champion) [ MHNG] (examined).

Geographic Range

Panama to southern Mexico.

Biology

This species occurs in lowland wet forest habitats. Its upper elevational limit varies geographically: on the Barva Transect in Costa Rica it does not occur over 500m elevation. It occurs as high as 800m elevation in the Penas Blancas Valley in the Cordillera de Tilaran, and it has been collected at 1100m on Volcan Cacao, an isolated peak in the Cordillera de Guanacaste. Nests are in dead wood on the forest floor, under loose bark, and occasionally in live stems (nests have been collected in live stems of Myriocarpa [Urticaceae] and the petiolar domatia of Piper cenocladum [Piperaceae]). Surprisingly, given the moderately common discovery of nests when general collecting, workers rarely recruit to baits and are rarely collected in Winkler or Berlese samples.

Comments

Two similar species have been conflated under this name until now. Wilson (2003) examined the lectotype of P. rhinoceros  HNS  but later used specimens of the similar P. rhinomontana  HNS  (described below) for illustrations. See further discussion and diagnostic characters under P. rhinomontana  HNS  .

Pheidole unicornis Wilson  HNS  2003 is not currently separable from P. rhinoceros  HNS  , but I defer synonymy pending additional study. In Central America, P. rhinoceros  HNS  is a lowland species and P. rhinomontana  HNS  is a parapatric replacement species at higher elevations. Unlike this pattern, P. unicornis  HNS  has the morphology of P. rhinoceros  HNS  but was collected at 2100m near Cali, Colombia. The minor workers appear somewhat more robust than the typical P. rhinoceros  HNS  from Costa Rica.

MHNG

Switzerland, Geneva, Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Pheidole