A revision of the South American species of the ant genus Probolomyrmex (Hymenoptera: Formicidae). Author Agosti, D. text Journal of the New York Entomological Society 1995 102 429 434 http://research.amnh.org/entomology/social_insects/ants/publications/8080/8080.pdf journal article 8080 Probolomyrmex petiolatus Weber petiolatus Weber , 1940: 76. Holotype worker, Panama, Barro Colorado Island [specimen from BCI compared with the type checked by S. Cover]. FEMALE. HL 0.61, HW 0.42, SL 0.44, TL 0.90. CI 70, SI 104, Figures 7, 11 (1 examined). WORKER. HL 0.51 - 0.64, HW 0.35 - 0.40, SL 0.31 - 0.41, TL 0.66 - 0.88, CI 63 - 69, SI 70, Figures 8, 12 (2 examined). Comments. This species is easily recognized by the subpetiolar process. The new samples expand the known distribution range well into northern South America. Nothing is known of the biology of this species. Material examined. 2 workers and 1 female, deposited in MCZ and USNM . PAN- AMA, Barro Colorado Island; leaf litter, forest floor; A. Newton. COLOMBIA , Meta , Quebrada Susamuko , 23 km NW Villavicencio , 1,000 m, leaf litter, March 5, 1972 , J. Peck . VENEZUELA , T. F. Amazonia , Cerro de la Neblina , basecamp, 140 m, 0 ° 50 ' N 66 ° 10 ' W , 10 - 20 February 1985 , flight intercept pan trap in rainforest, P. J. Spangler et al .