4o8 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I37 



0.01 mm 



Fig. 20. — Acerentomon doderoi Silv. Fore part of head with mouth parts 

 loosened from rostrum and palpi withdrawn. (After a slide in the Berlese collec- 

 tion in Firenze, No. 5.2.) Labium closely dotted, maxillae openly dotted. 



