14 LIST OF DRAWINGS 



FIG. TO FACE PAGE 



34. A tsetse fly, Glossina palpalis. (Castellan! and Chalmers' 



Manual of Tropical Medicine) .... .134 



35. A tsetse fly in the act of giving birth to a larva. (Castellani 



and Chalmers' Manual of Tropical Medicine) . . .134 



36. The Phlebotomus fever fly, Phkbotomus papatasi . . . 136 



37. A buffalo gnat, Simulium mcridionale (male). (Dept. of 



Agriculture, U.S.A.) 138 



38. Larva of tiimulium meridionale. (Dept. of Agriculture, 



U.S.A.) 140 



39. Pupa and " pockets " of Simulium meridionale attached to a 



leaf. (Dept. of Agriculture, U.S.A.) . . . .140 



40. The fever tick, Ornithodorus moubata. (After Brumpt) . 142 



41. A tick laying eggs. (After Sambon in Castellaui and Chal- 



mers' Manual of Tropical Medicine) . . . . .152 



42. Lamus megistus. (After Chagas) . . . . . .152 



43. Head of Lamus megistus. (After Carazzi) . . . .152 



44. A male plague flea. (After Jordan) ..... 158 



45. Evolution of the fowl tick, Argas persicus. (After Brumpt) . 162 



46. Margaropus annulatus australis. (After Terzi in Castellani 



and Chalmers' Manual of Tropical Medicine) . . .170 



47. A canine disease-carrier, Dermacentor reticulatus (female). 



(After Carazzi) 170 



48. Eggs of horse bot fly, Gastrophilus equi. (After Collinge) . 176 



49. The ox warble fly, Hypoderma bovis. (After Terzi in Castel- 



lani and Chalmers' Manual of Tropical Medicine} . .180 



50. The sheep bot fly, CEstrus ovis. (After Terzi in Castellani 



and Chalmers' Manual of Tropical Medicine) . . .180 



51. AsheepkediMelophagusovinus. (Dept. of Agriculture, U.S. A.) 186 



52. Scab mite, Psoroptes communis var. eqtii. (From Murray 



after Furstenbergh) 186 



53. Female fowl tick, Argas persicus (dorsal aspect) (After Terzi 



in Castellani and Chalmers' Manual of Tropical Medicine) . 190 



54. The hen flea, Sarcopsylla gallinacea (male). (Dept. of Agri- 



culture, U.S.A.) ' 190 



55. Air sac mites, Cytodites nudus 1 94 



56. Griganthorhynchus hirundaceus. (After Neveu Lemaire) . 194 



57. Legs of honey bees. (After Chester) 200 



58. Lac insects, Tachardia lacca. (Adapted from Indian Forest 



Records) 200 



59. House fly (Musca domestica) in the act of vomiting . . 230 



60. Larva of house fly, Musca domestica. (After Packard) . . 230 



61. Wings of flies 236 



62. Larva of lesser house fly, Fannia canicularis. (After Chevrel) 236 



63. Parasitic ticks on body of house fly 240 



64. A chelifer 240 



65. A cheese mite, Tyroglyphus longior. (Dept. of Agriculture, 



U.S.A.) 244 



66. The cheese "skipper "fly, Piophila casei. (After Carazzi) . 244 



67. The cheese " skipper " larva, Piophila casei. (After Carazzi) . 244 



68. Argentine ants, Iridomyrmex humilis. (After Newell) . . 246 



