Plate 



Nests of Mason-wasp 



T'rouiispiecc 



Odyncnis luiincls inld Ij.uiks ami provisicms her lvIIs wilh (.■alcrpill;iiri. Whilst the 



work i; ill ijfogrcss she constructs curved tubes of the excavated material to keep 



out the ruby-tailed wasp, which is a parasite. (>See p. 72.) 



Dnnoii by T. Carreras. 



