14 WHEELER— THE PARASITIC ACULEATA. 



TABLE I. 

 Genera of Parasitic Bees. 



Parasites. Hosts. Ancestral Genus. 



*Nomada Andrcna, Halictus, Encera, Collctcs, 



Panurgus Andrcna. 



*Sphecodcs Halictus Halictus. 



*Parhalictus ( ^Halictus Halictus. 



*Chlerogas {?)Thrinchostoma Thrinchostoma. 



*Mclecta Anthophora Anthophora. 



*Bombomclccta ( ?) Anthophora Anthophora. 



*Ericrocis ( ?) Anthophora Anthophora. 



*Crocisa Anthophora Anthophora. 



*Protomelissa ( ?) Anthophora Anthophora. 



*Melissa ( ?) Anthophora Anthophora. 



Epcolus Collctcs Anthophora. 



Tricpcolus Melissodcs, Tctralonia Epcolus. 



Argyrosclcnis Collctcs Epcolus. 



*Epcoloidcs Macropis Macropis. 



*Lciopodus Melitoma Melitoma. 



Osiris (f) Tetrapedia Tetrapedia. 



Rhathymus ( ?)Epicharis Epicharis. 



Mesochcira {?) Ccntris Crocisa. 



Acanthopus Ccntris {?)Ccntris. 



Eurytus Ccntris ( .?) Ccntris. 



Mesonychium Melitoma Acanthopus. 



*Aglae Euglossa Euglossa. 



*Exaerete Euglossa Euglossa. 



*Peresia Osmia Osmia. 



*Eucondylops -illodapc 41lodape. 



*Stelis Anthidiuni, Chalicodoina, Heriadcs, 



Osmia, Ceratina, Alcidamia, Chilos- 



toma -Inthidium. 



Parcvapis Mcgachilc Stclis. 



Euaspis Mcgachilc Stclis. 



*Thalcstria O.vcca Oxcca. 



*Androgynclla Mcgachilc Mcgachilc. 



*Coelioxys Mcgachilc, ( ?) Anthophora Mcgachilc. 



Dioxys Osmia, Chalicodoma Mcgachilc. 



Pasitcs Nomia, Camptopccuni Ammobatcs. 



Ammobatcs .Anthophora, Macroccra, Saropoda.. . Cccsarca. 



Biastes Systropha Ammobatcs. 



Phiarus Mcliturga Ammobatcs. 



Holcopasitcs ( ?)Calliopsis Anunobatcs. 



Orcopasites Spinoliclla Anunobatcs. 



Philcrcmus Rhophitcs, Halict aides Pasitcs. 



Herbstiella ( ?)Psanythia Pasitcs. 



*Psithyrus B ambus Bombus. 



