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 brevis (Cresson) Figures 1 , 33 , 41 , 49 Brachycistis brevis Fox, 1899:285. Holotype male; USA: California (ANSP). Diagnosis. This is one of three species in Colocistis , with two submarginal cells, including Colocistis eremi and Colocistis chemsaki , and one of two ( Colocistis eremi ) with the costal vein not extending beyond the stigma. It can be distinguished from Colocistis eremi by the hypostomal carina not elevated anteriorly (strongly elevated in Colocistis eremi ) and the aedeagus in lateral view slightly decurved (not decurved in Colocistis eremi ). Description. Male. Body length . 5-11 mm. Head ( Fig. 1 ). Compound eyes enlarged, extending laterally far beyond temples, inner margins somewhat emarginate; ocelli enlarged, diameter of lateral ocellus at least 0.7 x OOL; vertex with impressed line between lateral ocelli absent or reduced to a row of punctures; postvertex not visible behind ocelli in frontal view; lateral ocelli separated from vertex by 0.5 or less one ocellar diameter in frontal view; clypeus raised medially and visible above mandibles in lateral view, apex not bounded laterally by strong teeth; gular carina gradually elevated anteriorly.; LID 0.8 x UID; flagellomere I length 2.3-2.5 x breadth; flagellomere II length 2.5 x breadth; flagellomere IX length 5.5-6.0 x breadth; occipital carina strong, complete ventrally, with strong carina extending from foramen magnum to hypostomal carina medially; mandible narrowest submedially. Mesosoma . Pronotal punctures deep, contiguous; forefemur without stout spines; foretibia without spines except apically; basitarsus with three spines on outer surface; tibial spur as long as basitarsus; hindcoxal longitudinal dorsal carina basally angulate; mesopleural punctures contiguous; scutellum not strongly elevated above level of propodeum; scutal and scutellar punctures 1-4 puncture diameters apart; postscutellum densely punctate; propodeum dorsal surface densely irregularly rugose, with irregular longitudinal submedial and sublateral carinae, posterior surface transversely, densely ridged, with large, dense punctures laterally; lateral surface impunctate ventrally becoming densely punctate dorsally; forewing with two submarginal cells, costa not extending along wing margin beyond stigma. Metasoma . Tergum I without transverse carina; sternum II without raised area anteriorly. Genitalia ( Figs 42 , 50 ). Gonostylus evenly curved to tip, aedeagus slightly decurved in lateral view. Color . Head and body concolorous castaneous; vestiture brown. Female unknown. Distribution ( Fig. 33 ). USA: Arizona : Maricopa, Pima, Yuma counties; California : Imperial, Inyo, Riverside, San Bernardino, San Diego counties; Nevada : Lincoln, Nye counties; Texas : El Paso County; Mexico: Baja California , Baja California Sur , Sonora ; 990 males were examined including the type (BME, EMEC, KSBS, LACM).