Microdaceton viriosum

Identification
Bolton (2000) - In the type-series the first gastral tergite and sternite are both superficially sculptured in at least their basal halves; the propodeal spines are stout, straight to slightly downcurved. With the head in profile the highest point of the vertex has a pair of small, low, obtuse tubercles. Another, smaller, tubercle is present anterior to this pair, the three together forming the points of a triangle.

Distribution based on Regional Taxon Lists
Afrotropical Region: Uganda.

Nomenclature

 *  viriosum. Microdaceton viriosum Bolton, 2000: 29, figs. 24, 28, 32 (w.q.) UGANDA.

Worker
Holotype. TL 4.2, HL 1.10, HW 1.04, CI 95, ML 0.64, MI 58, SL 0.70, SI 67, PW 0.52, AL 0.94. Answering the description of Microdaceton tibialis except as follows.

1. Mesonotum with a pair of truncated blunt tubercles.

2. Petiole node in profile grossly inflated, enormous when compared to postpetiole.

3. Larger species with shorter mandibles and scapes (compare measurements).

Paratypes. TL 3.7-4.2, HL 1.04-1.10, HW 0.99-1.06, CI 95-99, ML 0.60-0.64, MI 56-60, SL 0.67-0.72, SI 66-70, PW 0.50-0.54, AL 0.86-0.94 (8 measured).

Type Material
Holotype worker, Uganda: Ruwenzori Mts, Kilembe, 1 550 m., 5.v.1992 (Erne & Cuccodoro). Paratypes. 1 1 workers and 1 queen with same data as holotype (NHM,, ).