INDEX 



[This index includes the names included in this paper. Valid generic names are in 

 bold-face type; valid specific or varietal names in roman ; and synonyms in italics.] 



Page 



Acrochordondes Bigot 43 



aei)alius (Walker) (Xylota) Calli- 



probola i . 40 



albistylum Macquart, Tropidia 11 



aldrichi Shannon, Calliprobola 40 



americana Shannon, Xylotomima, va- 

 riety of nemorum 21 



americana (Schiner) (Syritta) 



Planes? 14 



amithaon (Walker) (Milesia) (Bra- 



chypalpus?) Crioprora 25 



analis Williston, Xylota 32 



angustiventris Loew, Xylota 36 



annulifera Bigot, Xylota 5 



antennalis Philippi, Sterphus 46 



authreas. (Walker) (Xylota) Xyloto- 

 mima 20 



(intlircas (Authors), Xylota 5 



(inthreas Williston, Xylota 5 



apicaudus (Curran), (Brachypalpus) 

 Xylotodes, subspecies of inar- 



matus 24 



argoi Shannon, Xylota 38 



arquata (Say) (Xylota) Syrphus — 39 

 atlantica Shannon, Xylota, variety of 



naknek 34 



anreorufa Philippi, Eriophora 49 



auricaudata Williston, Ceriogaster__ 50 



aurifacies Bigot, Xylota 50 



aurifrons Shannon, Sterphus 46 



bacuntius Walker, Tcuchocnemis 8 



liarbata Loew, Xylota 36 



hatesi Shannon, Tatuomyia 48 



ba'ton (Walker), (Xylota) Xyloto- 

 mima 21 



bicolor Loevi', Xylota 37 



bivittata (Bigot), (Xylota) Tro- 

 pidia 31 and 43 



hivittata Lovett, Xylota 31 



Iioliviensis Shannon, Planes 44 



bomboides Hunter, Pocota 41 



borealis (Cole), (Pterallastes) Helo- 



phini 8 



brachygaster Willi.ston, Xylota 39 



Brachypalpus Macquart 25 



l)revipilosus Shannon, Xylotodes 23 



calcarata Williston. Tropidia 11 



Calliproljola Rondani 40 



ibalybea (Wiedemann), (Zylota) 



Xylotomima 16 



chloropyga Schiner, Xylota 50 



coarctata (Wiedemann), (Xylota) 



Tatuomyia 50 



Page 



coerulea (Rondani), (Xylota) Ster- 

 phus 46 



coloradensis (Bigot), (Xylota) Tro- 

 pidia 10 



communis Walker, Xylota 35 



comstocki (Williston), (Stenogaster) 



Acrochordonodes 43 



confusa Shannon, Xylota 30 



crawfordi Shannon, Calliprobola 40 



Crepidomyia Shannon 47 



ciirripes (Authors), (Xylota) Xylo- 

 tomima 17 



curvipes (Loew), (Xylota) Xyloto- 

 mima 17 



curvipes (Wiedemann), (Pterallas- 

 tes) Polydontomyia S 



curvipes, variety satanica (Bigot), 



(Xylota) Xylotomima 17 



cyanocephala (Philippi), (Sterphus?) 



Philippimyia 47 



dascon (Walker), (Xylota) Xyloto- 

 mima 21 



dentipcs (Fabricius), Achrochoro- 



nodes 43 



dubia Shannon, Xylotomima 22 



ejuncida Say. Xylota 29 



e.iuncida, variety elongata Williston, 



Xylota 30 



elongata Williston, Xylota, variety 



of e.iuncida 30 



elongata Williston (in part), Xylota_ 36 



Eriophora Philippi 49 



fascialis (Coquillett), (Xylota) Xylo- 

 tomima 20 



flavifrons Walker, Xylota 35 



flavimanna Philippi, Tropidia 50 



flavitibia Bigot, Xylota 27 



fratiflulosa (Loew), (Xylota) Xylo- 

 tomima 21 



frontosiis Loew, Brachypalpus 25 



fuscithorax Williston, Ceriogaster — 50 

 genuina (Williston), (Xylota) ?Cre- 



pidomyia 50 



grandis (Williston), (Pocota) Hadro- 



myia 41 



Jadromyia Williston 41 



hespcria atlantica Shannon, Xylota_ 34 

 laarmatus (Hunter), (Brachypalpus) 



Xylotodes 24 



inarmatus apicaudus (Curran), 



(Brachypalpus) Xylotodes 24 



incana Townsend, Tropidia 10 



libo (Walker), (Xylota) Xylotomima- 17 



51 



