80 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



5. Family Xenime Semenov, 1902. 

 1. Subfamily Xenin^e Pierce, 1908. 

 1. Tribe Xenini Pierce. 



9. Genus Xenos Rossi, 1790. 



1. vesparum Rossi, 1790 (type); Europe. 



2. jurinei Saunders, 1872; Europe. 



10. Genus Acroschismus Pierce, 1908. 



J. hubbardi Pierce (type), 1908; Florida. 



2. bruesi Pierce; Michigan. 



3. nigrescens Brues, 1903; Texas. 



4. pallidus Brues, 1903; United States. 



var. texensis Pierce; Texas. 



5. pecosensis Pierce; Texas. 



6. ivheeleri Pierce; Connecticut, District of Columbia. 



(pechil Brues, 1903.) 



7. bowditchi Pierce; United States. 



8. hunteri Pierce; Texas. 



9. texani Pierce; Texas. 



10. rubiginosi Pierce; Louisiana. 



11. maximus Pierce; Texas. 



11. Genus Schistosiphon Pierce, 1908. 



1. peckii Kirby, 1813 (type); Massachusetts. 



12. Genus Vespsexenos Pierce. 



1. crabronis Pierce (type); Japan. 



2. moutoni Buysson, 1903; China. 



3. b uyssoni Pierce ; Annam. 



2. Tribe Pseudoxenini Pierce. 



13. Genus Pseudoxenos Saunders, 1872. 



1. schaumii Saunders, 1872 (type); Corcyra. 



2. hlugii Saunders, 1852; Epirus. 



3. corcyricus Saunders, 1872; Corcyra. 



4. heydenii Saunders, 1852; Epirus, Corcyra. 



14. Genus Leionotoxenos Pierce. 



1. jonesi Pierce; Louisiana. 



2. louisianee Pierce; Louisiana. 



3. hookeri Pierce; Texas. 



15. Genus Monobiaphila Pierce. 



1. bishoppi Pierce (type); Texas. 



3. Tribe Paraxenini Pierce. 



16. Genus Paraxenos Saunders, 1872. 



1. erberi Saunders, 1872 (type); Corcyra. 



4. Tribe Ophthalmochlini Pierce. 



17. Genus Sceliphronechthrus Pierce. 



1. fasciati Pierce (type); Santo Domingo. 



18. Genus Ophthalmochlus Pierce, 1908. 



1. duryi Pierce, 1908 (type); Ohio. 



19. Genus Eupathocera Pierce, 1908. 



1. lugubris Pierce, 1908 (type); Ohio. 



2. pruinosse Pierce; Colorado. 



3. sphetidarum Dufour, 1837; Europe. 

 (?) 4. sieboldii Saunders, 1872; Germany. . 



