472 REVIEWS AND BOOK NOTICES. 
Two ichneumon parasites (Fig. 115, Pimpla annulipes Br. and 
Fig. 116, Macrocentrus delicatus Cress.) have been discovered at- 
tacking the codling moth, while ants, cockroaches, and the larve 
of certain predaceous beetles ( Trogosita nana, ete.), play no unim- 
portant part in destroying the well known apple worms. 
We have farther information concerning the grape Phylloxera. 
Mr. Riley offers the 
opinion that the mor- 
tality among the grape 
vines in this country 
for two or. three years 
past may be due to this 
re Sa op 
ay pee ee ee 
Fig. 116. 
Bere epee Ne et ee ae 
a insect, and from the 
statements he makes 
we should judge that 
he is correct, and if so 
every vine grower must 
make himself as famil- 
iar with the habits of n 
this insect as he now 
is with the manure he n 
uses upon the vines, Or 
the mode of training 
and pruning them. 
Phylloxera is 
found as far west as 
al 
ree ste ee ee ee 
ae see Ree ean T 
E E oat Er S E AS A E a ey hd MOAS RS y 
3 (Sey Aai 
ad 
AES 
f= 
TT 
+0 
In Europe it 
is spreading in Portu- 
gal and Switzerland, and in some parts of Germany, while in Eng- 
land it is doing serious injury to hot-house grapes. In France so 
threatening has it become that the French Academy of Science 
has a standing Phylloxera committee, and M. d’Armand, at one of 
its sittings, demanded that the premium of 20,000 francs, offered . 
Macrocentrus, parasite of Codling moth. 
tion should not enable us to advance beyond Westwood’s classification, admirable in 
1840, but in many respects obsolete in 1873. 
Again, +} bat that a 1 1 Anta t¢th gh fg r ] poin ng 
to the derivation of insects—their I l gis 1 relati to the past—do not always 
su e t interests of classification.” We would inquire what is classification 
but an attempt at tracing the genealogy of animals or plants ? 
J 
