A Revision of Perdita (Xerophasma) Timberlake (Hymenoptera: Andrenidae) Author Griswold, Terry Author Miller, Wensdae text Zootaxa 2010 2010-06-24 2517 1 1 14 https://biotaxa.org/Zootaxa/article/view/zootaxa.2517.1.1 journal article 10.11646/zootaxa.2517.1.1 1175-5326 5302214 Key to species of Perdita ( Xerophasma ) 1 Female ........................................................................................................................................................................... 2 - Male ............................................................................................................................................................................ 6 2 Entirely pallid, cream to tan on head and mesosoma .................................................................................................. 3 - Dark brown above antennal sockets, dark brown markings on mesoscutum, propodeum........................................... 4 3 Ocelli greatly enlarged, ocellar diameter nearly 1/3 width of interocular distance at level of median ocellus ( Fig. 4 ); large (forewing length> 7 mm ) .............................................................................................. bequaertiana Cockerell - Ocelli moderately enlarged, ocellar diameter approximately 1/5 width of interocular distance at level of median ocellus ( Fig. 2 ); small (forewing length < 7mm ) ........................................................................... pallida Timberlake 4 Frons dark throughout ( Fig. 1, 3 ); gena narrower than eye in lateral view; mesoscutum either dull or densely punctate ................................................................................................................................................................................ 5 - Frons with small dark mark above each antennal socket ( Fig. 5 ); gena broader than eye in lateral view; mesoscutum polished and sparsely punctate ......................................................................................................... rhondae Griswold 5 Mandible without preapical tooth ( Fig. 3 ); clypeus entirely cream-colored; mesoscutum golden brown or dark with 'U' shaped yellow marking, surface shiny, rather densely punctate ............................... vespertina Griswold & Miller - Mandible with preapical tooth ( Fig. 1 ); clypeus with medial dark band; mesoscutum entirely dark, surface dull, very sparsely punctate ............................................................................................................... ce ladona Griswold & Miller 6 Supraclypeal area with conical protuberance and dense tuft of erect, apically bent hair; clypeus densely punctate..... ........................................................................................................................................................... rhondae Griswold - Supraclypeal area flat, without tuft of hair; clypeus very impunctate medially .......................................................... 7 7 Face cream or golden brown above antennal sockets, with little contrast to clypeus and paraocular area; facial fovea distinct, tear-drop shaped, or ellipsoid ......................................................................................................................... 8 - Face dark brown or black above antennal sockets, in distinct contrast to yellow clypeus and paraocular area; facial fovea indistinct, slightly oval .......................................................................................... celadona Griswold & Miller 8 Ocelli not greatly enlarged, 1/5 width of interocular distance at level of median ocellus; frons cream to pale yellow above antennal sockets ................................................................................................................................................ 9 - Ocelli large, 1/3 width of interocular distance at level of median ocellus; frons golden brown above antennal sockets .................................................................................................................................................. bequaertiana Cockerell 9 Ocelli not bordered by dark lines except sometimes a single fine line medially between two lateral ocelli; prestigma pale in contrast to dark vein R; stigma without dark posterior margin; facial fovea tear-drop shaped ......................... ......................................................................................................................................................... pallida Timberlake - Dark markings present at least anterior to lateral ocelli, often more extensive in ocellar region; prestigma dark, similar to vein R; stigma with dark posterior margin; facial fovea elongate ellipsoid ....... vespertina Griswold & Miller