247 
Fig. 7. Skin of a larva of Drybota protea, with a hole ( a ) through 
which tke Phryxe -larva has penetrated, and spiracles ( b ) sur- 
rounded with dark marks indicating that the Drybota -larva is 
infested with Phryxe vulyaris. 
Tachina larvarum L. 
Egg. a appendix. 
1. Stage. Posterior end. a chitinous sticks. 
Skin from the 12. Segment with spines and two sticks. 
— Pharyngeal skeleton. 
Apex of the pharyngeal skeleton. 
2. — Pharyngeal skeleton. 
O 
o. — — —^ 
Anterior spiracle. 
The end of an anterior spiracle, sideview. 
Posterior spiracle. 
Puparium. Posterior spiracles and anal papilla. 
Tachina impotens Rond. 
Fig. 19. 
1. Stage. 
Posterior end. 
- 20. 
— 
Pharyngeal skeleton 
21. 
2. - 
— — 
- 22. 
3. — 
— — 
— 23. 
— 
Anterior spiracle. 
- 24. 
— 
Posterior spiracle. 
Tachina macrocera Rob. Dew. 
1. Stage. Pharyngeal skeleton. 
2 . — — — 
3. - — — 
Anterior spiracle. 
Posterior spiracle. 
Puparium. Posterior spiracles and anal papilla. 
Tachina vidua Meig. 
Pig. 31. 3. Stage. Posterior spiracle. 
Digonochæta setipennis Fil. 
iig. 32. Funnel, originating from the skin of an earwig, with the cast 
larval skin of a Digonochæta-l&r\ 2 i in 1. stage. a. a part of 
the skin of the earwig. b. pharyngeal skeleton of the Digono- 
chaeta- larva. 
Fig. 25. 
— 26. 
- 27. 
28. 
- 29. 
30. 
Fig. 8. 
9. 
10 . 
11 . 
- 12 . 
13 . 
- 14. 
15. 
16 . 
- 17. 
18. 
