Strumigenys excisa

Identification
Bolton (2000) - A member of the excisa-complex in the Strumigenys excisa-group. Two known species are closely related to excisa, Strumigenys dontopagis and Strumigenys asaphes; characters differentiating the three are compared under the last two names.

Distribution based on Regional Taxon Lists
Neotropical Region: Belize, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua.

Nomenclature

 *  excisa. Codiomyrmex excisus Weber, 1934a: 51, fig. 9 (w.) NICARAGUA. Combination in Borgmeierita: Brown, 1953g: 23; in Glamyromyrmex: Brandão, 1991: 344; in Pyramica: Bolton, 1999: 1672; in Strumigenys: Baroni Urbani & De Andrade, 2007: 119. See also: Bolton, 2000: 173.

Worker
Bolton (2000) - TL 2.2-2.3, HL 0.55-0.60, HW 0.47-0.50, CI 80-85, ML 0.11-0.13, MI 18-22, SL 0.23-0.26, SI 51-54, PW 0.28-0.31, AL 0.57-0.62 (6 measured).

Clypeus glassy smooth, with widely spaced minute punctures from which hairs arise. Behind the clypeus the cephalic dorsum finely longitudinally rugulose, most densely so away from the midline on the occipital lobes. Sides of alitrunk and propodeal declivity are smooth and shining, but dorsum of alitrunk has fine longitudinal rugular sculpture. Dorsum of petiole node has some fine disorganised short rugulae but disc of postpetiole is smooth. Basigastral costulae are feebly developed on each side of a median gap where the cuticle of the tergite is smooth. Spaces between basigastral costulae contain faint superficial shagreening. Dorsum of clypeus with suberect fine straight simple hairs. Cephalic dorsum with abundant standing simple pilosity. Dorsolateral margins of head in full-face view with abundant freely projecting fine hairs, some of which are long and subflagellate to flagellate. Scapes with scattered proj ecting hairs on the leading edge. Dorsal surfaces of club segments of antennae with long stiff suberect simple hairs that are at least as long as the maximum thickness of the segments. Dorsal alitrunk with abundant long fine simple hairs; pronotal humeral hair similar to other hairs but longer and subflagellate. Dorsal (outer) surfaces of hind tibiae and basitarsi with numerous long fine standing hairs that are distinctly longer than the segments from which they arise. Dorsa of waist segments and gaster clothed with abundant soft curved to flexuous standing hairs.

Type Material
Holotype worker, NICARAGUA: San Mejuel, Tuli Creek, xi.1916, from stomach of tree toad Dendrobates tinetorum, no. 2821-3433 (G. H. Noble) (parts card-pointed, other parts on microscope slide) [examined].