xxii LIST OF TEXT FIGURES 



FIOUBB PAGE 



24. Larva of Stomoxys calcitrans: Enlarged Sketch of Right Stigmal Plate. These 



plates are one and one-half times their breadth apart. (Greene) 146 



25. Larva of Muscina stabulans: a. Side view of head and prothorax; 6, anterior or 



thoracic spiracles; c, side view of terminal segments of abdomen. (Greene) . . 147 



26. Larva op Muscina stabulans: Enlarged Sketch of Right Stigmal Plate. These 



plates are less than their breadth apart. (Greene) 147 



27. Larva of Calliphora erythrocephala: Side View of Head and Prothorax. (Greene) 148 



28. Larva of Calliphora erythrocephala: Enlarged Sketch of Left Stigmal Plate. These 



plates are one and one-quarter times their breadth apart. (Greene) 148 



29. Larva of Chrysomya macellaria: Enlarged Sketch of Side of Head and Prothorax. 



(Greene) 149 



30. Larva of Chrysomya macellaria: Enlarged Sketch of Left Stigmal Plate. These 



plates are less than their breadth apart. (Greene) 149 



31. Larva of Lucilia sericata: a, dorsal view of head and prothorax; b, lateral view of 



head and thorax; c, lateral view of last abdominal segments. (Greene) .... 149 



32. A Maggot Trap for Housefly Control. View of the maggot trap, showing the 



concrete basin containing water in which larvae are drowned, and the wooden plat- 

 form on which manure is heaped. (Hutchison) "155 



33. Use op Flytrap in Connection with Manure Bin: a. Block of wood set in 



ground to which lever raising door is hinged 157 



34. Top op Garbage Can with Small Balloon Flytrap Attached 160 



35. Conical Hoop Flytrap; Side View: a. Hoops forming frame at bottom; 6, hoops 



forming frame at top; c, top of trap made of barrel head; d, strips around door; 

 e, door frame;/, screen on door; g, buttons holding door; h, screen on outside of 

 trap; i, strips on side of trap between hoops; j, tips of these strips projecting to 

 form legs; k, cone; I, united edges of screen forming cone; m, aperture at apex of 

 cone. (BiSHOPp) 163 



36. Plans of Open Hog-Feeding Trough. (Bishopp) 171 



37. Full Grown Larva of the Human Bot, Dermatobia hominis. (Drawing by Brad- 



ford.) Actual length 14.5 mm. . . 187 



38. Full Grown Larva of the Tumbu-Fly, Cordylobia anthropophaga. (Grunbehg.) 



Ventral view, x 6. (From Austen) 189 



39. The Tumbu-Fly, Cordylobia anthropophaga. (Gbtjnberg) Female, x 6. (From 



Austen) 189 



40. Nose Protection for Horse Against Attacks of the Nose Fly, Oastrophilus 



hcBmorrhoidalis. (Dove) ; . . . 205 



41. Chart Illustrating the Life Cjcle of Hwmoproteus columbm, the Cause of 



Pigeon Malaria. (Pierce) 213 



42. Chart Illustrating the Life Cycle of Trypanosoma gambiense, the Cause of 



Gambian Sleeping Sickness. (Pierce) 215 



43. Larva op a Buffalo Gnat, Simulium. (Jobbins-Pomeeoy) 225 



44. Eggs op the Stable Fly, Stomoxys calcitrans Attached to a Straw. Greatly 



enlarged. .(After Bishopp) 230 



45. The Stable Fly: Larva or Maggot. Greatly enlarged. (After Bishopp) . . 230 



46. The Stable Fly: Adult Female, Side View, Engorged with Blood. Greatly 



enlarged. (After Bishopp) 230 



47. Life Cycle of Plasmodium, Cause of Pernicious Malaria. (Pierce) . . . 252 



48. Eggs and Larv.^ op Culex. Enlarged. (Howard) 268 



49. Eggs of Malaria Mosquitoes: a. Anopheles punctipennis ; b, A. quadrimaculatits; 



c, A. crucians. (After Howard, Dyar and Knab) 268 



50. Lakva op the Yellow-Fever Mosquito. Much enlarged. (Howard) .... 269 



51. Larva of the Malaria Mosquito, Anopheles punctipennis. (After Howard 



Dyar, and Knab) 271 



52. Pupa op Culex. Greatly enlarged. (Howard) 272 



53. Pupa of Anopheles quadrimaculatus. Greatly enlarged. (Howard) 272 



