EXPLANATION OF PLATE XV. 



Fig. 142. Diaspis echinocacti (Bouche). 



143. Diaspis bromeliae (Kerner) Sign. 



144. Diaspis fulleri, Ckll. 



145. Diaspis (Aulacaspis) pentagom (Targ.). 



146. Diaspis rhusae, sp. n. 



147. Diaspis newstmdi, Leon. ; (a) variation in L r 



148. Chionaspis margaritae, sp. n. 



149. Diaspis {Epidiaspis) conspicua, sp. n. 



150. Chionaspis humttis, sp. n. 



151. Chionaspis exdlhida, Ckll. 



