Revision of the brachycistidine genus Colocistis Krombein, 1942 (Hymenoptera, Tiphiidae) Author Kimsey, Lynn S. Bohart Museum of Entomology, Department of Entomology, University of California, Davis, 95616 USA lskimsey@ucdavis.edu Author Wasbauer, Marius S. Bohart Museum of Entomology, Department of Entomology, University of California, Davis, 95616 USA text Journal of Hymenoptera Research 2013 2013-08-01 33 1 24 http://dx.doi.org/10.3897/jhr.33.5078 journal article http://dx.doi.org/10.3897/jhr.33.5078 1314-2607-33-1 88E03F8FD9B947F1B6E90456D47B1E37 5F20FFE2E95AAC21FFD1FFA0D8160112 574825 Colocistis paxillata (Mickel & Krombein) Figures 23 , 29, 30 Aglyptacros paxillata Mickel & Krombein, 1942:673. Holotype female; USA: Colorado, La Junta (USNM). Diagnosis. In Colocistis paxillata and Colocistis sulcata the gular carina is not elevated or angulate and does not meet the occipital carina. Colocistis paxillata can be distinguished from Colocistis sulcata by the sulcus on metasomal sternum I extending the same width for the length of the sternum. Male unknown. Description. Female ( Figs 29, 30 ). Body length . 10.5 mm. Head . 1.3 x as wide as long (along midline) in anterior view; vertex with lateral foveae small, circular; occipital carina ending before hypostomal carina medially; transverse carina short and irregular on either side of midline. Mesosoma . Pronotal disk 0.5 x as long as broad in dorsal view, 1.8 x as long as scutum; punctures 2-3 puncture diameters apart; propleura heavily punctured; forefemur without stout spines; foretibia without spines except apically; basitarsus with row of three spines on outer surface; tibial spur 0.9 x length of basitarsus; hindcoxal ventral carina about half length of coxa, dorsal carina broadly lobate dorsally. Metasoma . Sternum I with medial groove parallel-sided, extending to apical margin of sternum ( Fig. 23 ). Color . Reddish brown; vestiture pale yellow. Distribution. USA: Colorado, Otero County; only the holotype female was seen.