INDEX TO VOL. II. 



175 



PAGE 



Foes to Aphides, 23, 85, 107, 117, 



120, 149, &c. 



FuugoiJ growth in Aphides 18 



Fumagine .... 20 



Giierin on aphidivorous 



parasites . . 150, 161 



Growth of Aphides without 



food .... 70 



Kaltenbach on hybernation 

 of Aphides 



Lachmis 'punctatus 

 Lane Clark on Chelymorpha 

 Leone de pucerons 

 Lichtenstein on Aphides 

 Liosomcifphis berheridis . 



Melanoxanthus silicis 



Ovarian chambers, 

 of, in Aphis . 



number 



Parturition under the micro 



scope .... 70 



Periphyllus testudo . . 128 



Peronospora infestans . . 18 



PhyUophorus testudinatus . 128 



Plasmidiophora brassica3 . 21 



Pterocomma pilosa . . 143 

 Pteromalus ovulorum . 119, 154 



Ichneumonidse aphidivorous 151 



— Allotria, &c. . . . 153 



— Aphidius .... 153 



62 



137 



128 



107 



123 



14 



21 



PAGE 



Pixceron du pecher . . 15 



— du pomier . . .44 



— de I'Erable . . 121, 128 

 Pulsating knee-sac . . 78 

 PsyllidaB, Giraud on storing l(i4 



Vander Hceven on Periphillus 127 

 Yirchow on legitimate hypo- 

 thesis .... 3 



Wallace on climate as affect- 

 ing colour ... 32 



— inadequacy of heat alone 



to aft'ect such . . 33 



— sex affecting colour . 84 



