LIST OF FIGURES 



I ' 



FIG. PAGE 



1. An Anthomyid fly immediately after emerging from the 



puparium . * ; : . w' :,U . . '-.. . 14 



2. Ventral view of head of the same fly . -,;. >,:-* , . 14 



3. Side view of head of the same fly * ., v < v , . . 14 



4. Side view of a female Anopheles maculipennis Meigen 



(x about 20) ..... v . . 16 



5. Wing of Tabanus sp. shewing the venation . .*,-. . 17 



6. Acephalous larva of Stomoxys calcitrans ( x 7) . t . . 20 



7. Eucephalous larva of Phlebo torn us papatasii .. ..." , f 20 



8. Obtectate pupa of Anopheles maculipennis lf . . ,. f , 22 



9. Coarctate pupa of Stomoxys calcitrans . -... ;.. . 22 



10. Wing of Kellogg ina, a blepharocerid i .<> ; . ,. ; ; 34 



11. Thorax of Tipula . . . v^ -U . . . 34 



12. Wing of Ryphus '.' . % ; <i J". %: ; -.;. . ; 34 



13. Wing of Cecidomyia . . . . . i '^ : . 34 



14. Antenna of Orphnephila . . .'' V 1 '' .' ' , : 34 



15. Right hind-leg of Mycetophilus .' ., '';' '. " . 34 



16. Head of Bibio . . .. . . . ... V 34 



17. Wing of Chironomus sp. . t .' v . . , . V", . 34 



1 8. Head of Phlebotomus papatasii . r . ; . .. . .- . 36 



19. Wing venation of Phlebotomus papatasii . . w . 36 



20. Phlebotomus papatasii. Male . . . v - *. . v< 37 



21. Phlebotomus papatasii. Female .w t, ... - ' . . . . 38 



22. Freshly extruded egg of Phlebotomus papatasii . . 40 



23. Adult larva of P. papatasii \ :* ., . \* .^ . i 40 



24. Pupa of P. papatasii *: ' .! , w- > *;...; i.. , / 41 



25 . A nopheles maculipennis. A , enlarged view of male ; B, head . s j: 



of female . . ... . n ; n . ito'ij 5 1 



26. Transverse section through proboscis of a female Anopheles 



maculipennis, shewing the relative position of the parts 



when at rest . . ., . . , . . ..,. 52 



27. Side view of the head of a female Anopheles maculipennis, 



with the various mouth parts separated, but in the 

 relative position in which they lie when enclosed in 



the groove of the labium ..... 53 



28. View of under-surface of the base of the wing of Anopheles 



maculipennis, shewing stridulating organ .... 55 



29. Schematic longitudinal section of a female Anopheles macu- 



lipennis ......... 57 



