Holcoponera nigrivitrea

Nothing is known about the biology of .

Identification
A member of the porcata subgroup (in the striatula species group). The closest species to Gnamptogenys nigrivitrea is Gnamptogenys brunnea, but its well impressed mesometanotal groove, angulate anterolateral pronotal area and depressed apical and basal mandibular margins permit easy separation. (Lattke 1995)

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia.

Nomenclature

 * . Gnamptogenys nigrivitrea Lattke, 1995: 177, figs. 58, 59 (w.) COLOMBIA.
 * Type-material: holotype worker, 1 paratype worker.
 * Type-locality: holotype Colombia: Valle, Reserva Forestal de Yotocó, 3°50’N, 76°25’W, 42 km. NNE Cali, 1100-1500 m., 6.i.1984, no. 7221 (W.P. Mackay); paratype with same data.
 * Type-depositories: MIZA (holotype); LACM (paratype).
 * Combination in Holcoponera: Camacho, Franco, Branstetter, et al. 2022: 11.
 * Status as species: Lattke, et al. 2004: 347; Lattke, et al. 2007: 259 (in key); Lattke, et al. 2008: 94; Feitosa & Prada-Achiardi, 2019: 672; Camacho, et al. 2020: 456 (in key); Camacho, Franco, Branstetter, et al. 2022: 11.
 * Distribution: Colombia.

Worker
Holotype (paratype) measurements: HL 1.10 (1.10); HW 0.86 (0.82); ML 0.86 (0.82); ED 0.14 (0.12); SL 0.82 (0.84); WL 1.40 (1.36) mm; CI 0.79 (0.79); SI 0.95 (1.02); OI 0.16 (0.15). Head elongate; fairly parallel sided in frontal view; posterior margin slightly concave; clypeal lamella widest medianly, giving it a bluntly pointed aspect; eyes moderately protuberant. Mandibles triangular and shallowly costulate; no trace of mesometanotal suture; pronotum anterolaterally convex; declivitous propodeal face longitudinally costulate; metacoxal tooth triangular; node posteriorly inclined, in lateral view with a broadly convex anterior margin and a bluntly pointed apex which slightly overhangs the posterior margin, in dorsal view with longitudinal costulae; subpetiolar process is an anteriorly projecting lobe; anterior face of postpetiole with 3 transverse costulae, costulation longitudinal on dorsal face; postpetiolar sternum with distinct costulation; scape with few standing hairs and moderate amount of decumbent pilosity. Body black; antennae, legs, metapleural gland area, and gastric apex brown. Coxae very dark brown.

Type Material
Holotype worker: Colombia, Valle: Reserva Forestal de Yotoco, 3°50'N 76°25'W, 42 km N E Cali, 1100-1500 m, 6-I-84, W.P. Mackay, leg. No. 7221. Deposited in. Paratype: One worker with same locality data as holotype, deposited in.

Etymology
The species name is derived from the Latin adjectives for black, nigra, and for glassy, vitra, and alludes to the black and shining sculpture.

References based on Global Ant Biodiversity Informatics

 * Jimenez E., F. H. Lozano-Zambrano, and G. Alvarez-Saa. 2008. Diversidad alfa (á) y beta (â) de hormigas cazadoras del suelo en tres paisajes ganaderos de los andes centrales de Colombia. Pp. 439-459, In Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp.