A New Tribe Of Hybosorinae With A Description Of A New Species Of Callosides Howden (Coleoptera: Scarabaeidae) Author Howden, H. F. text The Coleopterists Bulletin 2001 2001-06-30 55 2 199 204 http://dx.doi.org/10.1649/0010-065x(2001)055[0199:antohw]2.0.co;2 journal article 10.1649/0010-065X(2001)055[0199:ANTOHW]2.0.CO;2 1938-4394 10102738 Key to Species of Callosides 1 Pronotum with four obvious, large tubercles; head with two longitudinal swellings -------------------------------------------------------------------------------------------------------------------------- 2 1' Pronotum with two, small, lateral tubercles; head unevenly convex; male genitalia as in Figures 8, 9 ; Valle del Cauca , Colombia ----------------------------------- ---------------------------------------------------------------------------------------------------------------------------- C. campbelli Howden 2 Elytral disc between suture and lateral carina with two irregular rows of small tubercles, tubercles on apical declivity rounded, sides not abruptly elevated; male genitalia as in Figures 6, 7 ; Carchı´, Ecuador ----------------------- ----------------------------------------------------------------------------------------------------------------------------------------- C. genieri n. sp. 2' Elytral disc between suture and lateral carina lacking rows of tubercles, tubercles on apical declivity abruptly elevated; genitalia as in Figures 10, 11 ; Napo , Ecuador ------------------------------- C. bartolozzii Paulian and Cambefort