52 



INDEX 



Page 



lituratus Loew, Teuchocnemis 8 



lovetti Curran, Xylota 31 



mamillata Loew, Tropidia 11 



marginalis (Williston), (Xylota) 



Xylotomima 17 



metallica (Wiedemann), (Xylota) 



Xylotomima 19 



metallifera (Bigot) , (Xylota) 



(Brachypalpus) Xylotodes 24 



mexicana (Bigot), (Syritta) Planes?- 14 



minor Shannon, Planes 44 



montana Hunter, Tropidia 10 



naknek Hine, Xylota 33 



naknek atlantica. Shannon, Xylota 34 



nebulosa Johnson, Xylota 32 



neraorum (Fabricius), (Xylota) Xy- 

 lotomima 21 



nemorum, variety americana Shan- 

 non, Xylotomima 21 



nigricornis Philippi, Tropidia 43 



notatus Bigot, Ortholophus 42 



notha Williston, Xylota 29 



oarus (Walker), (Xylota) Brachy- 

 palpus . 25 



oliscura Loew, Xylota 35 



oceanica Macquart, Syritta 11 



opacus Shannon, Calliprobola 40 



owgona Curran, Xylota 31 



Ortholophus Bigot 42 



pachymera (Loew), (Xylota) Planes- 13 

 pfirvus (Williston), (Brachypalpus) 



Xylotodes 24 



pauxilla (Williston), (Xylota) Planes 13 

 perfidiosus (Hunter), Pterallastes) 



Ilelophilini 8 



Fhilippimyia Shannon 47 



pigra (Fabricius), (Xylota) Xyloto- 

 mima 16 



pigra (Lovett), (Brachypalpus) Xy- 

 lotodes 24 



pipiens (Linnaeus), Syritta 11 



plagiata (Wiedemann), (Xylota) 



Crepidomyia 48 



Planes Rondani 12 and 44 



plesia (Curran), (Xylota) Xyloto- 

 mima 18 



Pocota St. Fargeau and Serville 40 



pretiosa (Loew), (Xylota) Planes 13 



Pterallastes Loew 8 



pulcher Williston, Calliprobola 40 



Page 



purpurea (Walker), (Xylota) Xyloto- 

 mima 16 



pygmaea Shannon, Tropidia 10 



quadrata (Say), Tropidia 11 



quadrimaculata Loew, Xylota 5 



rainieri Shannon, Xylota 34 



rileyi (Williston), (Brachypalpus) 



Xylotodes 24 



rondanii Shannon, Planes 14 



rubiceps Philippi, Stilbosoma 45 



rubicornis Philippi, Tropidia 50 



rubiginigaster (Bigot), (Xylota) 



Xylotomima 16 



rufipes Williston, Xylota 38 



sacajaweai Shannon,' Xylotodes 24 



-^atanica (Bigot), (Xylota) Xyloto- 

 mima, variety of curvipes 17 



schildi Shannon, Planes 15 



scutellarmata Lovett, Xylota 31 



segnis (Linnaeus), Xylota 28 



sorosis (Williston), (Brachypalpus) 



Calliprobola 40 



stenogaster Williston, Xylota 38 



Sterphus Philippi 46 



Stilbosoma Philippi 45 



subcostalis (Walker), (Xylota) 



Quichuana 39 



subfasciata Loew, Xylota 28 



subtropica (Curran), (Xylota) Xylo- 

 tomima 19 



Syritta St. Fargeau and Serville 11 



Tatuomyia Shannon 48 



Teuchocnemis Osten Sacken 8 



thoracicus Loew, Pterallastes 9 



transversa (Walker), (Syritta) Zo- 



nemyia 11 



tricrepis Shannon, Crepidomyia 47 



Topidia Meigen 9, 43 



vagans (Wiedemann), (Xylota) 



(Syritta) Planes 14 



valgus (Panzer), Brachypalpus 25 



vecors (Osten Sacken), (Xylota) 



Xylotomima 18 



ven trails (Walker), (Xylota) Crepi- 

 domyia 39, 50 



viridaenea Shannon, Xylota 33 



willistoni Shannon, Planes 14 



Xylota Meigen 26 



Xylotodes Shannon 22 



Xylotomima Shannon 15 



o 



