Pheidole truncula , Wilson, E. O., 2003

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press, pp. -1--1: 548

publication ID

20017

persistent identifier

http://treatment.plazi.org/id/057079C7-92DE-0372-4669-D5DE5102BC4A

treatment provided by

Donat

scientific name

Pheidole truncula
status

new species

Pheidole truncula  HNS  new species

Types INB io.

Etymology L truncula  HNS  , diminutive of trunca, cut off, maimed, referring to the head of the major.

Diagnosis a typical member of the lamia  HNS  group: the major has a phragmotic head, with the anterior portion incorporating the clypeus and mandibles flattened (truncated), and deep antennal scrobes. This species is easily distinguished from the other members of the lamia  HNS  group ( colobopsis  HNS  , lamia  HNS  , pelor  HNS  ) by the complete absence of carinulae on the head, which is instead foveolate and opaque, and by other differences in body form and sculpturing as depicted.

Measurements (mm) Holotype major: HW 0.74, HL 0.94, SL 0.42, EL 0.14, PW 0.44.

Paralectotype minor: HW 0.50, HL 0.52, SL 0.40, EL 0.10, PW 0.30.

color Major: concolorous yellowish brown.

Minor: light brown except for funiculus and tarsi, which are dark yellow.

range Known only from several collections from the type locality.

Biology Occurs at Penas Blancas in wet forest and nests at least in part arboreally, apparently in live plant stems (Longino 1997). On one occasion workers were mixed with those of the rare army-ant-like ponerine Simopelta  HNS  , making it likely that the truncula  HNS  were under attack as prey at the moment of collection.

Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: Penas Blancas, Alajuela, lO^ON 84°70 W 940 m (J. T. Longino). Scale bars = 1 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Formicidae

Genus

Pheidole