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Species: Pheidole pilispina   Wilson, 2003 

Classification:
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Taxonomic History (provided by Barry Bolton, 2018)

Pheidole pilispina Wilson, 2003A: 733, figs. (s.w.) PANAMA. Neotropic. AntCat AntWiki HOL

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Panama
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Comments:

J. Longino, 26 Apr 2014: Pheidole caltrop (Panama), P. floricola (Costa Rica to Honduras), P. gilva (Peru), and P. pilispina (Panama) are very similar. The P. pilispina and P. gilva type major workers have head shape and HW intermediate between P. caltrop and P. floricola. Minor workers of P. caltrop, P. gilva, and P. pilispina look indistinguishable to me. Minor workers of P. floricola have a mix of foveolate and shiny sculpture on the face; the other three are uniformly foveolate. Pheidole floricola is an arboreal species, and I suspect P. gilva, P. pilispina, and P. caltrop are as well. There is no evidence of sympatry among any of these forms.

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 pilispinaHNS new species

Types Mus. Comp. Zool. Harvard.

Etymology L pilispina, hairy spine, alluding to the long setae on apices of humeri in minor caste.

Diagnosis Similar to pidaxHNS of Colombia, distinguished from it and other PheidoleHNS as follows.

Major: yellow; humerus very prominent, in dorsal-oblique view extending from rest of promesonotal profile as a large equilateral triangle; in full-face view occiput much broader than clypeus, and occipital cleft shallow, giving entire head a wedge shape; rugoreticulum extensive from eye to antennal fossa posterior to frontal carina on each side of head; rest of dorsal surface of head carinulate, except for frontal triangle and midclypeus; all of mesosoma and waist foveolate; lateral corners of genae in full-face view right-angulate; postpetiole from above oval.

Minor: humeri bluntly spinose, with a long seta emerging form the apex of each; occiput narrow and with a nuchal collar; all of head, mesosoma, and waist foveolate to varying degree; pilosity sparse.

Measurements (mm) Holotype major: HW 1.06, HL 1.12, SL 0.60, EL 0.12, PW 0.54.

Paratype minor: HW 0.56, HL 0.60, SL 0.64, EL 0.10, PW 0.40.

color Major and minor: concolorous medium yellow.

Range Known from the type locality and Barro Colorado Island, Panama.

Biology Unknown.

Figure Upper: holotype, major. Lower: paratype, minor. PANAMA: Nusagandi, San Bias (Leeanne Tennant-Alonso). Scale bars = 1 mm.

Specimen Habitat Summary

Type specimens: holotype Pheidole pilispina: jtlc000016495



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