Monographic revision of the genus Aegidinus Arrow (1904) and generic phylogeny of the world Orphninae (Coleoptera: Scarabaeidae: Orphninae). Colby, Julia Insecta Mundi 2009 2009-05-08 2009 76 1 41 [285,674,1731,1755] Insecta Hybosoridae Aegidinus Animalia Coleoptera 15 14 Arthropoda species undetermined    1. Inferior sclerite with interior process produced into finger-like projections ( Fig. 65, 67, 69), or inferior sclerite folded around and almost covering superior sclerite ( Fig. 71) ....................... 2  — Inferior sclerite with interior process not produced into finger-like projections ( Fig. 66, 68, 70, 72- 77), or inferior sclerite folded over and completely or almost completely covering superior sclerite ( Fig. 71) .................................................................................................................................... 4   2 (1). Finger-like projections of inferior sclerite less than twice as long as wide ( Fig. 67) ..................... .....................................................................................................   A. guianensis(Westwood)  — Finger-like projections of inferior sclerite more than twice as long as wide ( Fig. 65, 69) .......... 3   3(2). Anterior margin of inferior sclerite with ridge ( Fig. 65) ........................   A. brasiliensisArrow  — Anterior margin of inferior sclerite without ridge ( Fig. 69) ................   A. howeaeColby, n. sp.   4 (1). Inferior plate folded over and almost or completely covering superior sclerite. ( Fig. 71) .............. ......................................................................................................   A. simulatusColby,  n.sp.  — Inferior plate never folded over, covering superior plate ............................................................. 5   5 (4). Accessory sclerites projecting from face of fused inferior and superior sclerite. ( Fig. 75) ............. .........................................................................................................   A. tricornisColby,  n.sp.  — Accessory sclerites (if apparent) projecting anteriorly from apical margin of superior sclerite. Superior and inferior sclerites completely fused, partially fused, or unfused .......................... 6   6 (5). Interior margins of superior plate produced into a spinulous bulb. ( Fig. 76) ................................ ............................................................................................................   A. unicusColby, n.sp.  — Interior margins of superior plate not produced into a bulb. Accessory sclerites present or apparenty absent ........................................................................................................................................ 7   7 (6). Superior and inferior sclerites fused along entire length, with no visible suture; accessory sclerites present or apparently absent ( Fig. 73-74) ........................   A. teamscaraborumColby, n.sp.  — Superior and inferior plates not fused along entire length; accessory plates always present .... 8   8 (7). Each superior sclerite with a central, circular boss located just above inferior sclerite ( Fig. 72). ......................................................................................................   A. sunidigeaColby, n.sp.   —Superior sclerites without circular boss ...................................................................................... 9   9 (8). Superior plate much shorter than inferior plate ( Fig. 70) ................   A. oreibatesColby, n.sp.  — Superior plate larger than or equal in size to inferior plate; superior plate sub-quadrate to rectangular in shape ( Fig. 66, 68, 77) ........................................................................................................ 10   10 (9). Superior plate with transverse ridge ( Fig. 66) ...............   A. candezeiPreudhomme de Borre  — Superior plate without transverse ridge .................................................................................... 11   11(10). Spinulous region at interior margin of superior plate projecting downwards ( Fig. 77) .................. .................................................................................................   A.venezuelensisColby, n.sp.  — Spinulous region at interior margin of superior plate projects inwards ( Fig. 68) ......................... .................................................................................................   A. howdenorumColby, n.sp.