PLATE XXVII. 



Spheoia apiformis. 



1, larva after last moult ; 1 a, cocoon. 



See pp. 123—125. 



Sphecia bembeciformis. 



2, larva before last moult ; 2 a, after last moult. 



See pp. 125, 126. 



Troohilium chrysidiforme. 



3, larva after last moult ; 3 a, root of sorrel (Rumex 

 acetosa) inhabited by the larva ; 3 b, pupa. 



See pp. 45, 46. 



Troohilium ichneumoniforme. 



4, larva after last moult ; 4 a, root of Lotus corni- 

 culatus inhabited by the larva ; 4 b, pupa. 



See pp. 46, 47. 



Troohilium ctnipiforme. 



5, larva after last moult ; 5 a, 5 b 9 pieces of oak-bark 

 ravaged by the larva. 



See pp. 47—49 and 126, 127. 



