Contribution towards the history of a new form of larv:c of Psychodidae (Diptera), from Brazil. I '^2Q 



Explanation of Plates LXXVIII and LXXIX. 



Plate LXXVIII. 



Fig. I. — Maruina tirsula, full-grown larva, from above (45: i); /, air-bulb. 



Fig. 2. — M. pilosella, full-grown larva, from below (15 : i). 



Fig. 3. — Anterior end of the same, from above (45 : i). 



Fig. 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 : i). 



Fig. 6. — Sixth and (7) Seventh suctorial discs of Maruina spinosa (180: i). 



Plate LXXIX. 



Fig. 8. — Maruina pilosella, pupa (25 : i). 



Fig. 9. — Its breathing-tubes, from different sides (180: i). 



Fig. 10. — Breathing-tube of the pupa of M. spinosa (90: i). 



Fig. II. — M. pilosella J, in repose, dorsal and ventral view (15 : i). 



Fig. 12.— Wing and {12a) tip of wing of the same (90: i). 



Fig. 13. — Wing of the same, in repose, dorsal view (25 : i). 



Fig. 14. — Tip of the wing of M. spinosa $ (90: i). 



Fig. 15. — Poiser of the same (90: i). 



Fig. 16. — Head of the same from above (90: \); f, antennse; /, palpus. 



Fig. 17. — Tip of the abdomen of the 5 of the same species (90: i). 



Fig. 18. — Last tarsal Joint of the intermediate foot of M. pilosella (360 : i). 



Fig. 19. — Tip of the abdomen of the $ of the same species (180: i). 



Fig. 20. — Tip of the abdomen of the J of the same species (180: i). 



Bemerkung des Herausgebers: An die vorstehende Arbeit schliessen sich unmittelbar zwei 

 Aufsätze an, welche sie eingehend würdigen und erörtern und zwar: ,,Remarks on the homologies and 

 differences between the first stages of Pericoma. Hai., and those of the new Brazilian species. By Baron 

 C. R. Osten Sacken, Ph. D., Hon. F. E. S." pag. (483) — (487) und „Supplementary notes on Dr. Fritz 

 Müllers paper on a new form of larvae of Psychodidae (Diptera) from Brazil. By the Rev. Alfred E. Eaton, 

 M. A., F. E. S." pag. (489)-(493)- 



Fritz Müllers gesammelte Schriften. "4 



