482 Dr. Fritz Miiller on larvse of Fsychodidse, 
Explanation of Plates X. and XI. 
Plate X. 
Fig. 1. — Maruina Ursula, full-grown larva, from above (45 : 1); 
Z, air- bulb. 
Fig. 2. — M. pilosella, full-grown larva, from below (15 : 1). 
Fig. 3. — Anterior end of the same, from above (45 : 1). 
Fjg. 4. — Left side of the fifth abdominal segment of the same, 
from above (180 : 1). 
Fig. 5. — Posterior end of the same, with extended tracheal 
branchiae (90 : 1). 
Fig, 6. — Sixth and (7) Seventh suctorial discs of Maruina spinosa 
(180 : 1). 
Plate XI. 
Fjg. 8. — Maruina pilosella, pupa (25 : 1). 
Fig. 9. — Its breathing-tubes, from different sides (180 : 1). 
Fig. 10. — Breathing-tube of the pupa of M. spiuosa (90 : 1). 
Fig, 11. — M. pilosella $ ,in repose, dorsal and ventral view (15 : 1). 
Fig. 12.— Wing and (12a) tip of wing of the same (90 : 1). 
Fig. 13. — Wing of the same, in repose, dorsal view (25 : 1). 
Fig. 14. — Tip of the wing of M. spinosa $ (90 : 1). 
Fig, 15. — Poiser of the same (90 : 1). 
Fig. 16. — Head of the same from above (90 : 1) ; /, antennae; 
t, palpus. 
Fig. 17.— Tip of the abdomen of the $ of the same species (90 : 1). 
Fig. 18.— Last tarsal joint of the intermediate foot of M. pilo- 
sella (360 : 1). 
Fig. 19. — Tip of the abdomen of the $ of the same species (180 : 1). 
Fig. 20.- „ „ „ of the „ „ „ (180:1). 
