Figs. 212-230.— Cltpeus and l.\.brum of 212, Bembix Belfeagei, l\teral vte-w; 213, Sixth tekgite of B. 

 belfragei, female; 214, middle tibia and metatarsus of b. stenebdoma, male; 215, ventral view, 



STERNITES 6-8 OF B. STENEBDOMA, MALE; 216, SIXTH TERGITE OF B. RUGOSA, FEMALE; 217, CLTPEUS AND 



labrum of b. rugosa; process on second sternite of 218, microbembex aurata, male; 219, m. mono- 

 donta,male; 220, M.hirsuta, male; Genital stipites of 221-222, M. aurata; 223-224, M. hirsuta; 225-226, 

 M. MONODONTA (Omo); 227-228, M. monodonta (Florida); 229-230, M. monodonta (Washington). 



151 



