44 MAINE AGRICULTURAL EXPLRIMENT STATION. IQIO. 



Ancylis (Pho.ropterus) nnbecidana. Page 26. 



28 Mandible, x 80. 



29 Labrum ; Dorsal aspect, x 80. 



30 Antenna, x 80. 



31 Labium and first maxilla, x 80. 



32 Anal fork, x 175. 



Buccidatrix canadensisella. Page 24. 



33 Labium and first maxilla, x 175. 



34 Mandible, x 175. 



35 Labrum; Dorsal aspect, x 175. 



36 Abdominal leg. x 175. 



37 Claw of anal leg. x 350. 



Mycetobia diver gens. Page 31." 



38 Labrum ; Ventral aspect, x 350. 



39 Lateral comb of epipharynx. x 350. 



40 Maxilla; Ventral aspect, x 175. 



41 Mandible; Lateral aspect, x 175. 



42 Mandible; Mesal aspect, x 175. 



43 Thoracic spiracle, x 350. 



Rhyphus punctatus. Page 35. 



44 Mandible ; Lateral aspect, x 350. 



45 Labium, maxilla and hypopharynx; Ventral aspect, x 63. 



46 Lateral comb of epipharynx. x 350. 



47 Thoracic spiracle, x 350. 



48 Caudal end, dorsal, x 80. 



49 Anal plate, x 25. 



Drosophila btisckii. Page 37. 



50 Mandibular hook, x 175. 



Trichocera regelationis. Page 34. 



51 Anal plate, x 175. 



52 Mandible; Mesal aspect, x 175. 



53 Labrum; Ventral aspect, x 175. 



54 Mandible; Lateral aspect, x 175. 



55 Lower mouth parts; Ventral aspect, x 75. 



56 Caudal end ; Dorsal aspect, x 40. 



57 Caudal spiracle, x 80. 



