Pheidole angusticeps

Longino, J. T., 2009, Additions to the taxonomy of New World Pheidole (Hymenoptera: Formicidae)., Zootaxa 2181, pp. 1-90 : 12-13

Pheidole angusticeps

Pheidole angusticeps Wilson, 2003: 609 , figs. Holotype major worker and associated paratype minor worker: Costa Rica, Guanacaste, Islas de Murcielagos, Isla San Jose, Santa Rosa National Park, 22 Oct 1992, tuna bait (Olson) [ MCZ] (examined).

Pheidole gradifer Wilson, 2003: 613 , figs. Holotype major worker and associated minor paratype worker: Costa Rica, Guanacaste, Santa Rosa National Park, 1km E station, 280m, 19 Oct 1992, tropical dry forest, tuna bait (Olson) [ MCZ] (examined). Bolton et al. 2006: emended to P. gradifera . New synonymy.

Geographic Range

Costa Rica.

Biology

This species occurs in second growth dry forest habitats in northwestern Costa Rica. It has been collected at tuna baits on the ground, in samples of leaf litter, and as prey of Neivamyrmex alfaroi .

Comments

The minor of Pheidole angusticeps has a narrow head, with CI 80-83. In the description of Pheidole gradifera the minor is reported to have CI 94 and the line drawing shows the head about as long as wide. However, this must be due to measurement error; the types of P. gradifera are typical P. angusticeps , and the minor worker has a narrow head.