MA SON- WASPS. 



29 



CucJcoo-Fly—Tuchinalarvarum?)— Natural size . 



rather larger, which deposited an egg there ; and the 

 grub hatched from it, after devouring one of the wasp- 

 grubs, formed itself a cocoon (a), as did the other 



Muson-Wasp'^s Nest mid Cocoons.— Ahowt one-third the natural size. 



undevoured grub of the wasp (6). Both awaited 

 the return of summer to change into winged irsects, 

 burst their cerements, and proceed as their parents 

 did. 



Mason-Wasp~( Odyneris mwarius)' — Natural size. 



Another mason wasp [Odynerus muramus, Latr.) 

 differing little in appearance from the former, may 

 often be seen frequenting sandy banks exposed to 

 the sun, and constructing its singular burrows, 



VOL. 



S' 



