| Pheidole truncula|
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, making it likely that the truncula were under attack as prey at the moment of collection. (Wilson 2003)
See the description in the nomenclature section.
Keys including this Species
Known only from several collections from the type locality. (Wilson 2003)
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- truncula. Pheidole truncula Wilson, 2003: 548, figs. (s.w.) COSTA RICA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
DIAGNOSIS A typical member of the lamia group: the major has a phragmotic head, with the anterior portion incorporating the c1ypeus and mandibles flattened (truncated), and deep antennal scrobes. This species is easily distinguished from the other members of the lamia group (Pheidole colobopsis, Pheidole lamia, Pheidole pelor) 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 (nun) 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.
Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.
COSTA RICA: Penas Blancas, Alajuela, lOo30'N 84°70W 940 m, col. col. J. T. Longino. Instituto Nacional de Biodiversidad
L truncula, diminutive of trunca, cut off, maimed, referring to the head of the major.
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 548, fig. major, minor described)