LAKVAL FORMS OF COLEOPTERA 



Plate 50 



Mijcetophagidae 



A. 

 B. 



Mycetophagus punctatus Say 



C. Mycetophagus obsoletus Melsli. 



Larva. Lateral view. 



Head and prothorax. Ven- 

 tral view. 



Ninth abdominal segment. 

 Ventral view. 



Third abdominal spiracle. 



Left mandible. Ventral view. 



Left mandible. Dorsal view. 



Right mandible. Dorsal view. 



Mesothoracic spiracle. 



Hypopharyngeal region. 



Head. Dorsal view. 



Larva. Dorsal view. 



Antenna. 



Posterior end of abdomen. 

 Dorsal view. 



Third abdominal spiracle. 



Larva. Ventral view. 



Left mandible. Ventral view. 



Right mandible. Ventral view. 



Spiracle. 



Larva. Dorsal view. 



Larva. Lateral view. 



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