A contribution to the knowledge of New World Bruchinae (Coleoptera, Chrysomelidae): taxonomic revision of Ctenocolum Kingsolver & Whitehead, with description of five new species Author Albuquerque, Felícia Pereira De Author Manfio, Daiara Author Ribeiro-Costa, Cibele Stramare text Zootaxa 2014 3838 1 1 45 journal article 10.11646/zootaxa.3838.1.1 e5103854-af5b-4e33-958b-163592f0b388 1175-5326 286727 1534C775-D28D-470F-9AEC-8BABB3D8FA56 Key to the species of Ctenocolum 1. Hind femur with second tooth of pecten regular in profile until apex ( Figs. 75–78 ); hind tibia on outer surface with row of denticles ( Figs. 4 , 75–78 ), apex lightly or moderately emarginated beside mucro ( Figs. 75–78 ) (Group tuberculatum )..... 2 - Hind femur with second tooth of pecten gradually increasing in size until middle and decreasing towards apex ( Figs. 66–74 ); hind tibia on outer surface without row of denticles, apex strongly emarginated beside mucro ( Figs. 66–74 ) (Group podagricus )............................................................................................ 5 2 (1). Antennomeres 8–10 darker than the others ( Figs. 18, 19, 21 , 63, 65 ); internal sac at apex laterally with short tuft of setae ( Figs. 90 ); tegmen, lateral lobe at apex without membranous projection ( Figs. 99–100, 102 ).............................3 - Antennomeres 8–10 the same color as the others ( Figs. 20 , 64 ); internal sac at apex laterally with long tuft of setae ( Figs. 5 , 89 ); tegmen at apex of lateral lobe with membranous projection ( Fig. 7 ).................................... C. salvini 3 (2). Hind femur on external ventral margin without toothed carina ( Fig. 75 )............................ C. acapulcensis - Hind femur on external ventral margin with toothed carina ( Figs. 76 , 78 )..................................... 4 4 (3). Hind femur with denticles on the external ventral margin ( Fig. 76 ); pygidium of female with sparse setae on two basal “C” pattern areas, on four lateral small areas and on a larger median area ( Fig. 51 )............................... C. janzeni - Hind femur without denticles on external ventral margin ( Fig. 78 ); pygidium of female with sparse setae on two lateral areas and on rectangular conspicuous area extending from basal to submedian region ( Fig. 52 )........... C. tuberculatum 5 (1). Dorsum mostly with yellowish gray setae, forming a “C” pattern on each elytron ( Fig. 10 ); pronotum with sparse setae that exposes the integument and forms a rounded area on anterior region ( Fig. 10 ).............................. C. colburni - Dorsum never mostly yellowish gray; when mostly yellow gray, not forming a conspicuous pattern on each elytron like a “C” ( Figs. 8, 9, 11, 12, 13, 14, 15, 16 , 17 ); pronotum with sparse pubescence exposing the integument forming an oval, wide area from anterior to posterior region, divided or not by transversal and longitudinal strip of denser setae ( Figs. 8, 9, 11, 12, 13, 14, 15, 16 , 17 )................................................................................. 6 6 (5). Elytral striae with deeply impressed punctures ( Figs. 15, 16 )................................................... 7 - Elytral striae with moderately impressed punctures ( Figs. 8, 9, 11, 12, 13, 14 , 17 )................................ 8 7 (6). Pygidium at median basal region with moderately impressed punctures; tegmen of lateral lobes with “ U” emargination ( Fig. 97 )................................................... C. punctinotatus Albuquerque & Ribeiro-Costa sp. nov. - Pygidium at median basal region with deeply impressed punctures; tegmen of lateral lobes with “V” emargination ( Fig. 98 ).......................................................... C. pygospilotos Albuquerque & Ribeiro-Costa sp. nov. 8 (6). Elytral stria 4 with tooth closer to anterior margin of elytra than base of the tooth of stria 3................ C. biolleyi - Elytral stria 4 with tooth closer to base of tooth of stria 3 than to anterior margin of elytra...................... 9 9 (8). Pronotum with median gibbosity divided by transversal sulcus; antenna pale brown or brown with antennomeres 3–11 darker at apex; male genitalia, internal sac with inverted Y-shape sclerite ( Fig. 79 )................................................................................................. C. aquilus Albuquerque & Ribeiro-Costa sp. nov. - Pronotum with median gibbosity not divided by transversal sulcus; antenna brown and dark brown or brown to dark brown, never with antennomeres 3–11 darker at apex; male genitalia, internal sac with different forms of sclerites ( Figs. 81–83 , 86 )................................................................................................ 10 10 (9). Elytra, striae 3 and 4 with conspicuous teeth at base ( Fig. 11 ); male genitalia, internal sac at submedian region with squamous hollow sclerite ( Fig. 81 )............................................................ C. martiale - Elytra, striae 3 and 4 with less conspicuous teeth at base ( Figs. 13, 14 , 17 ); male genitalia, internal sac with different form of sclerite ( Figs. 82, 83 , 86 )........................................................................... 11 11(10). Ocular index 4.7–7.0 ( Figs. 26, 27 ); pygidium oval in male ( Figs. 38, 39 ) and triangular in females ( Figs. 49, 50 )..... 12 - Ocular index 4.5 ( Fig. 30 ); pygidium oval in male ( Fig. 42 ) and female.................................................................................................... C. triangulatus Albuquerque & Ribeiro- Costa sp. nov. 12(11). Male genitalia, lateral lobes of tegmen with internal margin near end of emargination forming a "U" ( Fig. 95 ).................................................................................................. C. podagricus - Male genitalia, lateral lobes of tegmen with internal margin near end of emargination forming a “V” ( Fig. 94 )................................................................... C. milelo Albuquerque & Ribeiro-Costa sp. nov.