Ctenoplectrellini

Key to Genera of Ctenoplectrellini

1. Clypeus apical margin covering labral base, thus labroclypeal articulation obscured in facial view; pterostigmal length 2× or more basal width............................. 2

—. Clypeus apical margin not covering labral base, thus labroclypeal articulation not hidden; pterostigmal length less than 2× as long as basal width [subtribe Aspidsomiina ]........................ Aspidosmia Brauns View in CoL

2(1).Forewing 2Rs oblique to 2M, forming acute apical angle; subantennal sulcus as long as torular diameter; interocular distance greater than compound eye length [subtribe Glaesosmiina Engel , n. subtribe]................ 3

—. Forewing 2Rs orthogonal to 2M; subantennal sulcus longer than torular diameter; interocular distance subequal to or shorter than compound eye length [subtribe Ctenoplectrellina ]....................... 4

3(2).Gena broader than compound eye; pterostigma length in first submarginal cell from base to r-rs as long as prestigma.......................... Probombus Piton

—. Gena as broad as compound eye; pterostigma length in first submarginal cell from base to r-rs longer than prestigma......................... Glaesosmia Engel

4(2).Pronotal collar virtually absent........... 5

—. Pronotal collar short but distinct.......... ... Friccomelissa Wedmann, Wappler, and Engel

5(4).Body pubescent; mesoscutum and mesoscutellum with numerous, short, erect to suberect, fine setae, setae rarely separated by more than a setal length; metasomal scopa composedofdensebandsofsetae.................................. Ctenoplectrella Cockerell

—. Body distinctly sparsely pubescent; mesoscutum and mesoscutellum sparsely pubescent, setae, when present, largely separated by many times setal lengths; metasomal scopa formed of sparse bands of setae.................. Aspidosmiella Engel , n. gen.