81 



Mytilaspis pomorum. — Of 63 specimens all were females. Of these 

 14 were examined, and 11 of this number contained eggs. Since this 

 species is a native of Europe, the question of importation can hardly 

 be considered. 



In summing up, a danger of importation comes into consideration 

 only with the San Jose scale, and the recent edicts of the Government 

 are therefore justly confined to this species. 



LIVING AND DEAD SPECIMENS AMONG IMPORTED SCALES — PARASITES. 



For dried fruits of all sorts it must be accepted as an invariable rule 

 that no living scale has ever been found thereon. The following tables 

 refer to fresh fruit, and while, as Professor Kraepelin says, the coloni- 

 zation of such fruit by scales must be considered as an abnormal phe- 

 nomenon or an aberration, there is no reason to doubt that such scales 

 as have settled on fruit will develop and propagate. 



Aspldioius ancylus. — Of 250 females 232 were alive; of 12 larvae 11 

 were alive ; total, 92.75 per cent alive, 7.25 per cent dead. Of the 19 

 dead scales 4 had been killed by hymenopterous parasites and 2 were 

 infested by fungi. 



A.forbesi. — Of 17 females 1 was dead. 



A. perniciosus. — There was considerable difference in the various lots 

 and the following tables are taken at random from those I have exam- 

 ined, in some of them the scales being greatly and in others poorly 

 infested by parasites. 



Here follow six tables which it will not be necessary to print in full, 

 the summary of which is as follows: Two hundred and fourteen (33.49 

 per cent) living and 425 (6G.51 per cent) dead specimens of A. pernici- 

 osus were found. Of the dead specimens 63 were "eaten out" (killed 

 by insect enemies), equal to 9.06 per cent of all specimens, and 156 

 (equal to 22.44 per cent of all specimens) were infected by fungi. 



More than 30 per cent of all imported San Jose scales arrive infested 

 by parasites (insects and fungi). The experiments regarding the accli- 

 matization of hymenopterous parasites seem to be beset with great 

 difficulty. That of the fungi would be easier, and it would be quite 

 important to ascertain whether the fungus found by us is really Splice- 

 rostilbe coccophila. This question must be left to the botanists. 



COMMON OCCURRENCE OF SEVERAL SPECIES OF COCCID.E. 



1. Common occurrence on different apples of the same sending. — A. ancylus, A. forbesi, 

 and M. pomorum on Eussets (November 21, 1898). 



A. ancylus and M. pomorum on Baldwins three times (November 25, 1898, December 

 14, 1898, December 27, 1898); on Canada Eed (November 28, 1898), on Rock Russet 

 (December 14, 1898), and on Spy (November 25, 1898). 



A. ancylus and Ch. furfur us on Fallawater (November 22, 1898). 



A. camellia' and M, pomorum on Newtown Pippins (December 29, 1898). 



A. perniciosus, A. camellia*, and Al. pomorum on Newtown Pippins (November 14, 

 1898;. 



11608— No. 22 - -6 



