Anthidiellum (Chloranthidiellum) Mavromoustakis

Eardley, Connal, 2018, Taxonomic revision of the sub-Saharan Anthidiellum Cockerell (Apoidea: Megachilidae: Anthidiini), Zootaxa 4402 (2), pp. 201-250 : 204

Anthidiellum (Chloranthidiellum) Mavromoustakis

Anthidiellum (Chloranthidiellum) MAVROMOUStAKIS 1963: 491 . TyPE SPEcIES: Anthidium flavescens (FRIESE), By ORIgINAL DESIgNAtION.

Anthidiellum SENSU StRIctO IS cHARActERIZED By T2-T5 BEINg LOBAtE LAtERALLy, IN DORSAL VIEW. IN Chloranthidiellum , tHE tRANSLUcENt ORANgE, DIStAL MARgINS OF tHE MEtASOMAL tERgA ARE SUPPRESSED MAKINg tHE yELLOW REgION OF tHE tERgA PROtRUDE SLIgHtLy LAtERALLy, BUt tHEy ARE NOt LOBAtE. THE HOLOtyPE OF A. eritrinum WAS StUDIED AND NONE OF tHE MEtASOMAL tERgA ARE LOBAtE. ALSO, tHE ORIgINAL DEScRIPtION OF A. eritrinum (FRIESE 1915) MAKES NO MENtION OF A LOBAtE MEtASOMA. THEREFORE, PAStEELS (1984) ERRONEOUSLy PLAcED Anthidiellum eritrinum (FRIESE) INtO Anthidiellum SENSU StRIctO. Anthidiellum eritrinum IS HERE MOVED tO tHE SUBgENUS Chloranthidiellum . THUS, ONLy tWO SUBgENERA OF Anthidiellum ARE KNOWN FROM tHE AFROtROPIcAL REgION.

Anthidiellum eritrinum AND A. pamae ARE tHE ONLy tWO SPEcIES IN tHIS SUBgENUS. THEREFORE, tHEy ARE MOSt cLOSELy RELAtED tO ONE ANOtHER, UNItED By tHE WELL DEVELOPED PREOccIPItAL cARINA.

Diagnosis. Preoccipital carina extends across posterior vertex and gena (nearly reaching mandible base); omaulus lamellate; S4 concave posteromesally, distal edge mesolateral fringe with 4–5 black setae; S5 straight, distal fringe with short black setae, never interrupted mesally.

Alternately, as in Pycnanthidium pamae , the preoccipital carina is indistinct and laterally confined to the upper gena, and the omaullus is carinate. The distal sterna of the male are devoid of fringes.