Pheidole jivaro ^HNS new species

Types Mus. Comp. Zool. Harvard.

Etymology Named after the celebrated indigenous Amerindian tribe.

Diagnosis Similar to other members of the " carapuna ^HNS complex," listed above.

Major: a low, long convexity emerges from the midclypeus, as illustrated; pilosity long, with a few hairs on mesosomal dorsum over 1.5X Eye Length; mesonotal convexity very low, giving promesonotum in side view a newly smooth semicircular profile, postpetiole from above oval; almost all of posterior third of head smooth and shiny; anterior fringe of pronotum carinulate and most of mesopleuron foveolate.

Minor: occiput narrowed, with nuchal collar; pilosity long, with some hairs on dorsum of head greater than Eye Length. Measurements (mm) Holotype major: HW 1.06, HL 1.20, SL 0.60, EL 0.14, PW 0.54. Paratype minor: HW 0.54, HL 0.70, SL 0.84, EL 0.14, PW 0.38.

Color Major: body and mandibles brownish yellow, other appendages plain dark yellow.

Minor: head and mesosoma dark brown; waist and gaster light to medium brown; mandibles and tarsi yellow; other appendages brownish yellow.

Range Known from the type locality and from Cerro Campana, Panama, 950 m (A. Newton).

Biology The Cerro Campana series was collected from leaf litter on the floor of rainforest. A winged queen was collected with the type colony on 29 June 1976.

figure Upper: holotype, major. Lower: paratype, minor. ECUADOR: Misahualli, Napo (C. Tarrant). Scale bars = 1 mm.