Hypoponera tristis Bolton & Fisher, 2011

Bolton, B. & Fisher, B. L., 2011, Taxonomy of Afrotropical and West Palaearctic ants of the ponerine genus Hypoponera Santschi (Hymenoptera: Formicidae)., Zootaxa 2843, pp. 1-118 : 110

Hypoponera tristis Bolton & Fisher sp. n.

(Figs 124 – 126)

WORKER (holotype in parentheses). Measurements: HL 0.67 – 0.79 (0.79), HW 0.54 – 0.60 (0.59), HS 0.615 – 0.695 (0.690), SL 0.46 – 0.56 (0.55), PrW 0.42 – 0.46 (0.46), WL 0.95 – 1.08 (1.03), HFL 0.48 – 0.58 (0.58), PeNL 0.21 – 0.24 (0.22), PeH 0.44 – 0.49 (0.48), PeNW 0.34 – 0.38 (0.36), PeS 0.340 – 0.367 (0.353) (10 measured). Indices: CI 75 – 80 (75), SI 88 – 93 (93), PeNI 77 – 85 (78), LPeI 46 – 50 (46), DPeI 152 – 170 (164).

Answers the description of segnis in all respects except for relative size of petiole. In segnis the petiole node is absolutely and relatively shorter in profile, PeNL 0.17 – 0.20 and LPeI 35 – 43, and is distinctly broader in dorsal view, with DPeI 180 – 211.

Holotype worker (top specimen of three on pin), Rwanda: Kayove, 2100 m., 15.v.1973 (P. W e r n e r) (MHNG). Paratypes. 8 workers with same data as holotype (MHNG, BMNH, CASC). See comment under segnis and notes under dema .

Non-paratypic material examined. Uganda: Kibale For. Res. (M.R. Orr); Kalinzu N.P., Musanga For. (M. Kiyono); Kalinzu For., Bushenyi Distr. (S. Yamane). Rwanda: Kayove (P. W e r n e r); Rangiro (P. W e r n e r).