INDEX. 193 
PAGE 
Phtheir, identification of the 
Greek . . .5 
Phyllopliorus testudinatus . 91 
Phylloxera, dimorphism of . 91 
Posing Aphides for drawing . iii 
Pro thorax and adjuncts 
. 18 
Puceron of Reaumur . 
. 48 
— of Bonnet . 
. 50 
Pulsation in tihial joints 
. 36 
Pupa of Aphis . 
. 84 
Ratzeburg on Ohermes 
. 61 
Reaumur 
. 49 
Respiratory system 
. 34 
Rhopalosiphum staphyleee 
. 187 
Rostrum, great development 
of . 
. 16 
Salivary glands 
. 33 
Schizoneura, galls made by 
. 45 
Schmidberger on number 
of 
species 
. 7 
Schrank on Aphides . 
. 56 
Segmentation of body 
19, 21 
Sex 
. 87 
Silk, secretion of 
. 100 
Siphonophora . 
. 103 
— absinthii 
. 154 
— alliarise 
. 123 
— artemisiee . 
. 155 
— avellanae 
. 149 
— carnosa 
. 144 
— cerealis 
. 115 
— chelidonii . 
. 121 
— cichorii 
. 163 
— circumflexa . 
. 130 
— convolvuli . 
. 148 
— cyparissiae . 
. 113 
— diplanteriae . 
. 136 
— dirhoda 
. 132 
— fragariae 
. 125 
— granaria 
. 114 
— hieracii 
. 126 
— jaceae 
. 153 
— lactucae . ^ 
. 139 
— longipennis . 
. 146 
— lutea 
. 119 
Siphonophora malvae . 
PAGE 
. 136 
— menthae 
. 120 
— millefolii 
. 127 
— muralis 
. 157 
— olivata 
. 164 
— ■ pelargonii . 
. 136 
■ — pisi . 
. 134 
— polygon! 
. 123 
— ros88 . 
. 103 
var. glauca 
. 109 
parasites of 
. Ill 
— rosarum 
. 150 
— rubi . 
. 140 
— scabiosae 
. 112 
— scrophulariae 
. 137 
— sisymbrii 
. 160 
solidaginis . 
. 156 
— sonchi . , 
. 161 
— tanaceti 
. 151 
— tanaceticola 
. 159 
— tussilaginis . 
. 159 
— ulmariae 
. 134 
— urticae 
. 143 
— viciae 
. 190 
Siphuncle 
. 22 
Somites, number of 
19, 21 
Spermatozoa, sperm-cells 
. 129 
Stemmata 
. 15 
Stomata, where placed 
. 21 
Stomaphis, rostrum of 
. 17 
Swarms of Aphides 
. 80 
Synopsis of classification 
. 9 
— of family Aphidinae 
. 94 
• — of genus Siphonophora 
. 102 
Terminology . 
. 11 
Thorax and adjuncts . 
. 18 
Yiviparism in Aphis . 
. 84 
Walker on Aphis 
. 62 
— on migration 
. 73 
Water lily, destruction of 
. 70 
Wings, booklet of 
. 27 
— insertions of 
. 27 
— nervures and cells of 
. 28 
— venation of . 
. 27 
FEINTED BY J. E. ADDAED, BAETHOLOMEW CLOSE. 
13 
