no 



ILLINOIS BIOLOGICAL MONOGRAPHS 



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EXPLANATION OF PLATE 



EpiPHARYNX AND HyPOPHARYNX AND ASSOCIATED ParTS 



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 Fig. SS8. 

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 Fig. 56s 

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 Fig. S70. 

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Calobata univitta, caudal aspect. 



Calobata univitta, lateral aspect. 



Sapromyca vulgaris, lateral aspect. 



Saf>roiiiyca vulgaris, caudal aspect. 



Chloropisca glabra, caudal aspect. 



Chloropisca glabra, lateral aspect. 



Chrysomysa deiiiandata, caudal aspect. 



Chrysoinyca deinandata. lateral aspect. 



Coelopa vanduzeii, caudal aspect. 



Coelopa vanduzeii, lateral aspect. 



Pipunculus cingulatus, caudal aspect. 



Pipunculus cingulatus, lateral aspect. 



Drosophila ampclophila, caudal aspect. 



Drosophila aiupelophila, lateral aspect. 



Borborus equinus, lateral aspect. 



Borborus equinus, caudal aspect. 



Borborus equinus, liypopharynx united with labium, caudal aspect. 



Chyroiiiya concolor, caudal aspect. 



Chyroiiiya concolor, lateral aspect. 



Lo.voccra pectoraiis, caudal aspect. 



Lo.roccra pectoraiis. lateral aspect. 



Euarcsta acqualis, caudal aspect. 



Euaresta acqualis, lateral aspect. 



Ochthera mantis, lateral aspect. 



Ochthera mantis, caudal aspect of the labrum. 



Ochthera mantis, caudal aspect of the epipharynx. 



Ochthera mantis, caudal aspect. 



Dcsmonictopa latipes, lateral aspect. 



Desnio-.uetopa latipes, caudal aspect. 



