320 BULLETIN 31. UNITED STATES NATIONAL MUSEUM. 



PLATE IX. 



1. TiuoDONTA CUKVIPES Wied., wing; la, head of male, front view; 16, head of 



male; Ic, hind leg of male; Id, hind leg of female. 



2. Tropidia quadkata Say, wing; 2a, head of male; 2b, hind leg of male. 



3. CiuoRHiXA ANALis Mai <!•, wing. 



4. Ckiokhina iiUMEHALi.s Will., wing ; 4a, head of male. 



5. Criokhixa SC1TUI.A Will., head of male. 



6. CiuOHHiNA LUPINA Will., female ; On, head of male, front view; 6ft, the same, 



side view. 



7. Ckiokhina umuuatilis Will. 



8. Mai.i.ota ciMBiGiKORMts, form Bautias Walk., hind leg of male. 



