258 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



Nesting sites are in twigs (Krombein, 1951). The adult behavior 

 is similar to that oi A. compressa; the female w^asp imbibes blood 

 that oozes from the amputated antennae of the cockroach ; the egg 

 hatches in 2-3 days, and the development of one male was completed 

 in 33 days (Williams, 1929), 



Fig. 6. — Ampulex canaliculata attacking Parcoblatta virginica. A, Female 

 wasp stinging her prey, c. X4. 8. B, Wasp's c^g attached to the coxa of the 

 mesothoracic leg of the cockroach. C, Larva of A. canaliculata (about three- 

 quarters grown) feeding on the internal organs of the host from the exterior, 

 c. X4. (Reproduced from F. X. WilHams [1929], through the courtesy of Dr. 

 F. X. Williams and F. A. Bianchi, Hawaiian Sugar Planters' Association.) 



Distribution. — U.S.A.: Connecticut south to Georgia; Ohio, Wis- 

 consin, Missouri, Kansas; in open woods (Krombein, 1951). 



Ampulex compressa (Fabricius) 

 (PI. 35) 

 Synonymy. — Guepe ichneumon of Reaumur [Williams, 1929] ; 

 Chlorion (Ampulex) compressum. 



