Pheidole umphreyi

AntWiki: The Ants --- Online
Jump to navigation Jump to search
Pheidole umphreyi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. umphreyi
Binomial name
Pheidole umphreyi
Wilson, 2003

Pheidole umphreyi inbiocri002279630 p 1 high.jpg

Pheidole umphreyi inbiocri002279630 d 1 high.jpg

Specimen Labels

The type colony was found by Gary J. Umphrey in a coffee plantation, nesting under the bark and in the still-firm rotting wood of a very large log. Winged queens were present at the time of collection 15 June. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


Known from Costa Rica and Panama

Latitudinal Distribution Pattern

Latitudinal Range: -4.1° to -4.1°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica, Panama (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • umphreyi. Pheidole umphreyi Wilson, 2003: 531, figs. (s.w.) PANAMA.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


DIAGNOSIS Similar in various traits to Pheidole nitidicollis, Pheidole mackayi, Pheidole tennantae, and several species close to them (q.v.), differing as follows. Major: dark brown with bicolored head (see color below); upper mesopleuron (anepisterum), dorsum of propodeum, and humerus covered by irregular, broken rugulae; lower mesopleuron (katepisterum), sides of propodeum, and most of anterior dorsal surface of head carinulate; middle of promesonotal dorsum in profile with a small, obliquely subangulate convexity; petiolar node in side view tapered toward apex; postpetiolar node from above oval.

Minor: mesopleuron and side of propodeum rugulose; most of head and all of pronotum smooth and shiny; occiput broad, its margin straight.

MEASUREMENTS (mm) Holotype major: HW 1.08, HL 1.08, SL 0.62, EL 0.12, PW 0.52. Paratype minor: HW 0.56, HL 0.62, SL 0.56, EL 0.06, PW 0.36.

COLOR Major: body dark brown; head bicolored: strip of head capsule anterior to anterior margin of eyes brownish yellow, rest of capsule dark brown; appendages medium brown.

Minor: body blackish brown; head bicolored: narrow strip of the anterior half of head capsule between eye and anterior head capsule border a contrasting brownish yellow.

Pheidole umphreyi Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

PANAMA: Boquete, near Vulcan Baru, Chiriqui Province, 8°47'N 82°26'W, col. Gary J. Umphrey. Museum of Comparative Zoology


Named after the collector, field biologist and systematist Gary J. Umphrey.


References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.