Insects and Parasitic Diseases. 67 



Plate V. — Ff. microstoma. 



Fig. 27. — Larva from a Stomoxys calcitrans pupa. 



Fig. 28. — The above (posterior end). 



Figs. 29 and 30. — Larvae from a Stomoxys calcitrans pupa. 



Fig. 3L — Larva from a Stomoxys calcitrans fly. 



Fig. 32. — Larva from Stomoxys calcitrans fly. 



Fig. 33. — The above (posterior end). 



Plate VI. 



Figs. 34 and 35. — Proboscis of Stomoxys calcitrans fly showing 

 larval Habronema microstoma. 



All figures, excepting 34 and 35, outlined with camera lucida. 



Figs. 34 and 35, Photomicrographs of specimens fixed in alcohol 

 and mounted in glycerine jelly. 



Fig. 18, from specimens fixed in lacto-phenol. 



Figs. 19-30, inclusive, from life. 



Figs. 31-33, inclusive, from specimens fixed in alcohol and 

 mounted in glycerine jelly. 



Plate VTT. — H, megastOxMa. 



Fig. 36. — Egg and embryos from female. 

 Fig. 37. — Embryos from stomach tumour. 

 Fig. 38. Embryos from a tumour after fifteen days' incubation in 



faeces. 

 Fig. 39. — Larva from a Musca domestica larva. 

 Figs. 40 to 45. — Larvae from Musca domestica flies. 



Platk VIII. 



Fi<.rs- 46, 47. Larvae from Musca domestica flies. 

 Fig. 48. — Larva from a Musca domestica fly. 

 Fig. 48a. — The above (posterior end). 

 Fig. 49. — Larva from a stomach tumour. 

 Fig. 49a. — The above (posterior end). 



All figures outlined with camera lucida. 



Figs. 36-39 and 41-43 inclusive from life. 



Figs. 40 and 44-49a inclusive from specimens fixed in alcohol 

 ;,and mounted in glycerine jelly. 



6a 



