314 BULLETIN ;S1, L'NITED STATES NATIONAL MUSEUM. 



PLATE VI. 



1. VOLUCELLA VKSicUKOsv Fabi., wing; 1«, liead of male. 



2. VOLTJCELLA SEXPUNCTATA TiOew, willg. 



3. VoLUCELLA PL'SILLA Mticq.. wiiij^: An. liead. 



4. VOLUCELLA FASCIATA Mac<l., willjr. 



5. VoLl'CELLA MKXKAXA Ma<«].. wiiig; ^>ti, head ot iiiale. 



6. V'OLUCKLLA EVKCTA Walk., wiiiji : (id. liead of male. 



7. VOLUCEI-LA, sp. 



8. VoLUCELLA s]).. head of malt-. 



9. VoLUCELLA CoMSTocKi Will., hoad of male. 



10. Voix'CELLA EUGENIA Will., head of male. 



11. VOLUCELLA .SEXPUNCTATA Loew. 



12. VoLUCELLA SATUR O. S., wiug iifiiratiou; 127», antenna. 



13. VoLUCELLA TAU Bigot, anteuua. 



