INDEX TO VOL. I. 
PAGE 
PAGE 
Abdomen, number of segments 
Boussingault on honey dew 
41 
of . 
19 
Bowerbank, circulation in wings 
Adipose secretions 
47 
of insects . 
37 
Allen Thomson on ovum 
of 
Broods, number of 
83 
Aphis 
• 
66 
Amphorophora ampullata 
• 
187 
Oauda, size and forms of 
• 
26 
Analysis of honey dew 
« 
42 
Chaitophorus aceris, dimor- 
Anatomy — 
phism of . 
• 
91 
— alimentary system . 
a 
32 
Chalcidiae 
• 
117 
— circulatory system . 
• 
35 
China, population of, con- 
— hepatic vessels 
• 
33 
trasted with increase 
of 
— respiratory system . 
34 
Aphides . 
• 
79 
— salivary glands 
• 
33 
Circulatory system 
• 
35 
Andrew Knight on self-fertih- 
Coccinella, swarms of . 
170 
zation 
68 
— trivial names for . 
170 
Antennae, variable, as to the 
— a foe to Aphides 
170 
number of joints . 
• 
12 
Coccus manniparus . 
• 
42 
Aphis — 
Concealment, modes of 
74 
— campanulae, Kalt. . 
• 
161 
Cornicles, Kaltenbach on 
• 
24 
— capsellse, Kalt. 
* 
121 
— functions of 
23 
carduina, Walk. 
164 
— Morren’s remarks on 
23 
— cerasifolise, Fitch . 
• 
176 
— wanting in many genera 
• 
24 
— institia, Koch. 
178 
Coverings, flocculent, secreted 
— lathyri. Walk. 
• 
134 
by Aphides 
37 
— onobrychis, Fonsc. 
• 
134 
— persicaecola, Boisd. 
• 
178 
Be Geer on Aphides . 
• 
55 
— persicophila, Bond. 
• 
178 
Dimorphism in Aphis . 
• 
91 
— pruni. Scop. 
• 
166 
— Chelymorpha 
• 
91 
— serratulse, Kalt. 
• 
161 
— Phyllophorus 
• 
91 
— ulmarise, Schr. 
* 
134 
— Phylloxera . 
« 
91 
— viciae, Kalt. . 
• 
190 
Distribution, geographical 
• 
92 
— of Dryobius 
• 
92 
Balbiani on Aphis 
67 
— of Hamameliotes . 
93 
— - on hermaphroditism 
69 
— of Lachnus . 
92 
Bibliography . 
48-69 
— of Schizoneura 
• 
93 
Blindness in some Aphides 
• 
15 
Dorsal apparatus . 36, 37, 181 
Bonnet, researches of . 
a 
50 
Doubleday on honey dew 
• 
41 
*— genealogical tables of Aphis 
52 
Drepanosiphum acerina 
• 
185 
