Pheidole impressa

Nothing is known about the biology of impressa.

Identification
See the description in the nomenclature section.

Distribution
From Wilson (2003): Known from Ceará and the neighboring state of Rio Grande do Norte, in northeastern Brazil (Kempf 1972b).

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil.

Nomenclature

 *  impressa. Pheidole impressa Mayr, 1870b: 985 (s.) BRAZIL. See also: Wilson, 2003: 303. Current subspecies: nominal plus detrita.

Description
From Wilson (2003): A very distinct member of the fallax group, easily distinguished as follows.

Major: anterior third of central strip of first gastral tergite longitudinally striate; the whole gastral tergite shagreened; rugoreticulum on each side of head stretches from eye medially to antennal fossa and anteriorly to near the anterior border of head; propodeal spines moderately long and nearly vertical to basal propodeal face; promesonotal dorsum transversely carinulate; all of cephalic dorsum, mesosoma, and waist foveolate and feebly shiny to opaque; postpetiolar node from above trapezoidal.

Minor not seen.

MEASUREMENTS (mm) Holotype major: HW 1.36, HL 1.68, SL 0.92, EL 0.22, PW 0.70.

COLOR Major: body and mandibles medium reddish brown, other appendages light reddish brown.



'''Figure. Unique holotype, major. Minor not seen. Scale bars = 1 mm.'''

Type Material
- as reported in Wilson (2003)

Type Locality Information
BRAZIL: Ceará, col. M. E. Simon. (Wilson 2003)

Etymology
L impressa, marked by impression, possibly referring to the gastral striae. (Wilson 2003)

Additional References
Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Stud. Entomol. 15: 3–344.

Mayr, G. 1870b. Neue Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 20: 939–996.

Text and images from this publication used by permission of the author.