438 



PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



^ 6 i> /^ -^ aA 



O-l m m 



Figure 21. — Cryptinae, head sclerites: a, Rhemhohius ahdominalis (Provancher) (Aptesini); 

 B, Sphecophaga thuringiaca Schmiedeknecht (Sphecophagini). (1, antenna; 2, spiracle; 

 3, skin.) 



