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Species: Pheidole christopherseni   Forel, 1912 


Classification:
Download Data

Taxonomic History (provided by Barry Bolton, 2017)

Pheidole christopherseni Forel, 1912g PDF: 229 (s.w.) PANAMA. Neotropic. AntCat AntWiki HOL

Taxonomic history

See also: Wilson, 2003A: 400.

Distribution:


Neotropical Region: Atlántida, Chiapas, Colombia, Comayagua, Costa Rica, Heredia, Honduras, Limón, Magdalena, Panama, San José

Distribution Notes:

Colombia, Costa Rica, Panama (type locality). Costa Rica: Atlantic lowlands.

Biology:

Natural History:

Arboreal; nesting in small cavities in live plant stems.

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press

Pheidole christopherseniHNS Forel

Pheidole christopherseniHNS Forel 1912g: 229.

Types Mus. Hist. Nat. Geneve.

Etymology Eponymous.

Diagnosis One of the most distinctive of all PheidoleHNS species, marked by extremely small size, greatly elongated head of the major, and almost complete lack of carinulae anywhere on the bodies of major and minor, even around the antennal fossae and on the metapleural gland bulla. In some series at least, majors have faint longitudinal carinulae on the frontal lobes, and both castes have a few such traces on sides of the head anterior to the eyes.

Measurements (mm) Syntype major: HW 0.34, HL 0.40, SL 0.34, EL 0.06, PW 0.24. Minor not measured.

Color Major: concolorous medium yellow. Minor: concolorous pale yellow.

range In addition to the type locality (Panama), Longino (1997) has recorded christopherseniHNS from the Atlantic lowlands of Costa Rica and the TayronaHNS National Park of Colombia.

Biology In Costa Rica, christopherseniHNS has been found in rainforest to 600 m, and in Colombia once in seasonal dry forest. This bizarre little species is strictly arboreal so far as is known. The type colony was nesting in a "very thin hollow stem" (Forel). Longino (1997) reports colonies from Costa Rica in the live, hollow stems of Bauhinia vines (a legume), as well as in a bignoniaceous liana, a small tree, and Cecropia saplings.

Figure Upper: syntype, major. Lower: syntype, minor. PANAMA. Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 4 times found in mature wet forest, 9 times found in montane wet forest, 2 times found in moist forest, 1 times found in wet forest, 1 times found in dry forest, 1 times found in Primary forest at river edge, 2 times found in tropical rainforest, old second growth, 2 times found in tropical rainforest, 1 times found in CC 1250, 1 times found in tropical rainforest, with big trees, probably primary, ...

Found most commonly in these microhabitats: 4 times ex live stem Myriocarpa, 2 times nest in live stems Myriocarpa, 1 times in live stem Bignoniaceae liana, 1 times NOTES FOR COLLECTIONS #3291-s TO #3315 WERE LOST. NOTES WERE RECONSTRUCTED FROM, 1 times in live stems, 1 times In Cecropia peltata sapling, 3 times beating vegetation, 3 times beating veg., 1 times 2100; Pheidole; 3w,3s/w,s,b; wet forest edge; nest in C. insignis sapling., 2 times Malaise trap, 2 times copa de árbol, ...

Collected most commonly using these methods: 6 times search, 6 times Malaise, 6 times beating, 5 times Foggin, 4 times Fogging.

Elevations: collected from 50 - 800 meters, 304 meters average

Type specimens: syntype of Pheidole christopherseni: casent0908258, casent0908259



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