Phylogenomic Species Delimitation, Taxonomy, and ‘ Bird Guide’ Identification for the Neotropical Ant Genus Rasopone (Hymenoptera: Formicidae) Author Longino, John T. Department of Biology, University of Utah, Salt Lake City, UT 84112, john.longino@utah.edu Author Branstetter, Michael G. USDA-ARS Pollinating Insects Research Unit, Utah State text Insect Systematics and Diversity 2020 2020-03-31 4 2 1 1 33 journal article 22150 10.1093/isd/ixaa004 430a96d1-f5cd-4234-a35d-3f324ed63974 2399-3421 3826703 0DE2398D-199F-40A7-8207-91148630CD76 Rasopone JTL047 ( Fig. 10 ; Supp Fig. S44 [online only]) Geographic range. French Guiana . Diagnosis Mandible smooth and shining; anterior clypeal margin truncate; side of head with short erect setae; petiolar node subcuboidal; face sculpture of dense, minute puncta overlain with larger, more widely spaced puncta visible in particular orientation and lighting. Two species are within geographic and size range of R . JTL047: Rasopone lunaris ( Fig. 8 ; Supp Figs. S16–S18 [online only]): posterior face of petiolar node more rounded; face with uniform small puncta, not overlain with larger puncta. Rasopone JTL048 ( Fig. 6 , Supp Fig. S45 [online only]): smaller (HW 0.98 vs 1.21). Measurements, worker: HW 1.21 (1.21-1.21, 2); HL 1.26 (1.26– 1.27, 2); SL 0.89 (0.88–0.89, 2); PTH 0.84 (0.81–0.87, 2); PTL 0.50 (0.48–0.51, 2); CI 96 (95–96, 2); SI 74 (73–74, 2); PTI 59 (55–63, 2). Biology This species is known from lowland rainforest sites, < 800 m elevation, from Winkler samples of sifted litter and rotten wood. Comments See under R. lunaris .