Flowers, the, chiefly agreeable to bees, 15. earliest, sought by the bees, 14. fertilized by bees, 11, 51. Fœnus infests Chelostoma, 287. Forcipate, when crossing each other. Foreign bees, conspicuous genera of, 101. Form of parasitical bees often adapted to that of their sitos, 48. determined by function, 48. Fossorial Hymenoptera, 45. Fruit preserved in honey, 83. Fusiform, = spindle-shaped. Genæ, 26, 28. Genera of bees determined artificially, 176. that emit scents, 296. with and without parasites, 264. Geniculated, bent like a knee or angle. Genus, 132. type of, 133. Geography of the British genera of bees, 61. Gibbous, = irregularly swollen. Glabrous, without hair or pubescence. Gregarious, its application to bees, 57. Habit, 127. Habitat, 127. Habits, 127. and structure correlative, 24. Halictophagus, 115. Halictus, general observations on, 216. geography of, 68. its enemies, 220. list of native species, 215. natural history of, 217. parasites that infest it, 219. peculiar autumnal appearance, 218. scientific description of, 214. structure of labrum, 30. Hastate, halberd shaped. Head of bees, 26. Hedychrum infests Halictus, 219. Heriades, general observations on, 288. geography of, 76. native species of, 288. scientific description of, 288. Hindoo Koosh, supposed cradle of the human race, 3. Hirsute, covered with long stiffish hairs, thickly set. Hives, darkness of, 355. moved on rafts, 85. Homer mentions bees, 6. Honey, different kinds of, 87. green, 87. its use in the East, 83. mode of lapping, described by Réaumur, 35. mode of storing, 350. prescribed by Mahomet, 91. quantity in a well-filled hive, 360. sometimes poisonous, 86. used in medicine by the Egyptians, 90. Honey-bee, see “Apis,” “Bee,” “Bees.” mode of secreting wax, 330. Hypopharynx, 29. Imago of bees, 23. Inosculation, point of close contact or attachment. Insect-feeding reptiles before glacial period, 5. Inserted, where joined. Instinct, its applications, 56. occasional divergence of, 55. of bees, 55. Job mentions bees, 6. Kirby’s merits, 144. system of bees, 147. Labial palpi, 30, 32. number of joints invariable, 32. structure in Andrenidæ, 32. structure in Apidæ, 32. Labium = lower lip, 30, 31. Labrum = upper lip, 28, 30. Lacerate, with a roughened irregular edge. Lanceolate, oblong but gradually tapering. Latreille’s classification not adopted, 168. Leg, diagram of, 42. Legs, general description of, 41. Length of an insect is taken from the front of the head to the apex of the abdomen; the breadth, or the expansion of the wings, it is not usual to give, excepting under such circumstances as would be particularly mentioned, viz. in cases of an excessive enlargement or diminishment of the typical size. Life, duration of, of bees, 54.