MYTILASPIS POMORUM. 199 



in a spider's web. Alas ! it was dead and shrivelled, 

 but a further search revealed a host of the puparia. 

 Cutting a goodly supply of the branches, we found 

 the puparia were tenanted, and during the following 

 week quantities of the perfect insects emerged. 



With regard to the synonymy of this species, I have 

 here given priority to Bouche. Mr. Morgan (' Ent. 

 Mo. Mag.,' s. s., vol. i, p. 226), however, gives M. 

 linearis, Mod., and quite recently Mr. Cockerell in- 

 forms me that M. pomorum is a synonym of M. 

 ulmi, L., and he is probably correct ; but I feel that 

 it is not always possible, especially in the Coccid group, 

 with such imperfect descriptions as were given by the 

 earlier writers, to identify a species so surely as to 

 leave no doubt as to the priority of a name. In his 

 synonymy Mr. Morgan (1. c.) has perhaps gone too far, 

 and included species which are still considered valid ; 

 otherwise I think he has cleared up many doubtful 

 names, and I must refer the student to his very able 

 paper for further particulars. 



Distribution. Occurs in many other parts of the 

 world generally as a pest on cultivated fruits Southern 

 Europe, Africa, N. America, Brazil, Australia, and New 

 Zealand. 



EXPLANATION or THE PLATES. 



PL XXIV, figs. 1 and 2. Female insect, natural size, 



in situ on branch of apple. 

 Fig. 3. Puparium of young adult female (dorsal). 



x 15. 

 Fig. 4. Puparium of old adult female (ventral) 



showing female and eggs. X 15. 

 Fig. 5. Puparia of young adult female (ventral) 



form on apple leaf, containing female immediately 



prior to parturition. X 20. 

 Fig. 6. Puparium of second-stage female at period 



of fecundation. X 15. 



