Pheidole arachnion, Wilson, E. O., 2003
publication ID |
20017 |
DOI |
https://doi.org/10.5281/zenodo.6275356 |
persistent identifier |
https://treatment.plazi.org/id/0759290A-028C-079B-F5E6-F16930CF6322 |
treatment provided by |
Donat |
scientific name |
Pheidole arachnion |
status |
new species |
Pheidole arachnion HNS new species
Types Mus. Comp. Zool. Harvard.
Etymology Gr arachnion HNS , cobweb, alluding to the loose rugoreticulum on the head of the major.
Diagnosis A member of the tristis HNS group characterized by the following combination of traits.
Major: dark reddish brown; sides of head covered by loose rugoreticulum (i.e. with large interspaces); humeri and postpetiolar nodes seen from above cornulate (horn-shaped); lacking any trace of antennal scrobes.
Minor: propodeal spine reduced to an obtuse angle; body entirely smooth and shiny except for several carinulae on anterior half of dorsal surface of head, one of which loops on each side of the head in a semicircle from the end of the frontal lobe to the anterior clypeal border; a thin nuchal collar present.
Very similar to iracunda HNS , also of Costa Rica, but differing in details in the characters as listed and illustrated. Measurements (mm) Holotype major: HW 1.80, HL 1.98, SL 0.76, EL 0.18, PW 0.90. Paratype minor: HW 0.60, HL 0.62, SL 0.74, EL 0.10, PW 0.40.
Color Major: body and mandibles dark reddish brown, other appendages light reddish brown. Minor: body plain medium brown, appendages brownish yellow.
Range Known from the Atlantic lowlands of Costa Rica.
Biology A nest was found in rotting wood in forest at the La Selva Biological Station, near Puerto Viejo.
Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: Rio Reventazon, 3-5 km east of Turrialba, Cartago (William L. Brown). Scale bars = 1 mm.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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