342 



A BOOK OF INSECTS 



Food of injects, 110 et seq. 



Foot of insects, 54 



" Foot-jaws," 31, 33, 41, 42 



Forbes, Dr. S. A., 245, 334 



Forel's experiments with food of insects, 

 111, 112. 



Forficula, 61. See Earwig 



Formica, 169, 203, 297 



Formicidcc — Ants, q.v. 



" Foul brood " among hive-bees, 251 



Fowler, Kev. Canon, quoted, 196 



Foxglove tribe, fertilisation by insects, 

 228 



Frenulum of moths, 85 



Frit-fly, 320 



Frog-hoppers, 72, 168 



Fruit-eating insects, 197 



Fruit-growing aided by insect cross- 

 pollination, 330 



Futyorida-, 71, 138 



Fungi, as enemies of insects, 250 



— as food of ants, 300, 301 

 Fungus midges, 93 



Gad-flies, 93, 102, 187,323 

 Galea, 41 



Gall-flowers of fig, 239 

 Gall insects, 51, 199 et. seq. 



— midges, 93 



— wasps, 98, 201, 238 



Galls produced by longhorn beetle, 81 



Gamble, Professor, 316 



Ganglia. See Nervous system 



Garbage as food of insects, 195, 196 



Oastropacha, 88, 139 



Gastrophilus, i'>16 



Genera of insects, 40, 57 



Geometrida, 56, 89, 132, 134 



Gill-structures in aquatic insects, 314 



Glossina, 95, 328 



Glow-worms, 80, 253 



Gnathopoda, 31 



Gnats, 93. See also Mosquitoes 



— diving powers of pupa of, 25 



— larva? as prey of fishes, 246 



— mouth-parts of, 43 



— parental behaviour of, 263 



— respiratory apparatus of larvae, 313 



— sanguinivorous nature of, 187 

 "Golden-eye" flies, 76, 178 

 GoiujyJus, 175 



Gonopteryx, 91 



Gossyparia, 333 



«' Gout-fly," 320 



Graphdilha, 198 



Grasshoppers, 54, 62, 64, 65, 109, 141, 250 



Grassi, 324 



"Green-fly," 73 



Gregory, Profi^sor, 138 



" Ground pearls," 334 



Gryllidce — Crickets, q.v. 



Gryttotalpa, 65, 255 



Gryllus, 65, 255 



Gyrinida, 78, 104, 184, 310, 312, 314 



Hcematopota, 187 



Haemoglobin in "blood-worm." 128, 315 



Hair of insects, 2, 168, 313 



Halictus, 279 



Halteres of true flies, 46, 116 



Samanumida, 137 



Head of insect, 33 



Heart of insect, 4 



Hedgehog, as enemy of insects, 244 



IMiconiincr, 92, 146, 147 



Hemerobiidtf, 76 



Ilcmerocampa, 331 



Hemimeridce, 62 



Hemiptera, 59, 70, 176, 317 



Henderson, R. B., 196 



Henslow, Rev. G.. quoted, 217, 242 



Hepialidce, 86, 250, 251 



Hespcriidw, 90 



Hessian fly, damage to crops by, 321 



Heteromera, 82 



Heteroptera, 70, 310 



Hexapoda, 33, 59 



Hippobosddce, 95, 187 



Hive-bees, bacterial disease of, 251 



— foraging by, 126 



— life-history and habits, 284 



— mimicry by drone fly of, 150 



— mouth-parts of, 42 



— queen's attributes, 280, 284 



— sting of, 169 



— swarming of. 288 

 Hornoptera, 71, 1B8 

 Honev, value of, 333 



" Honey -ants," 16, 294 

 Honeycomb, 285 



" Honey-dew " of Aphidce, 73, 212, 333 

 Honey-guides, 224, 248 

 Honeysuckle, fertilisation of, 221 

 Hop aphid, 209 

 Hornet, 105, 106, 148, 288 

 " Horse-ant," 292 

 "Horse-bean galls," 199 

 Horse-flies, 187 



House-flies, 44, 94, 103, 188, 250, 329 

 Hover-flies, 94, 178, 263 

 Howard, Dr., quoted, 179, 263, 331 

 Hubbard, H. G., 263 

 Humble-bees, "carder," 281 

 -— communal life of, 280-283 



— cuckoo, 270, 2*2 



— fertilisation of flowers by, 226, 227, 

 228 



— hair of, 2 





