110 



ILUNOIS BIOLOGICAL MONOGRAPHS 



[280 



EXPL.\XATION OF PLATE 

 Epipbaryxx and Hypophakynx and Assooated Pakts 



Fig. 551- 



Fig. 552. 

 Fig. 553- 

 Fig. 554- 

 Fig. 555. 

 Fig. 556. 

 Fig. 557. 

 Fig. 558. 

 Fig. 559. 

 Fig. 560. 

 Fig. 561. 

 Fig. 562. 

 Fig. 563. 

 Fig. 564. 

 Fig. 565. 

 Fig. 566. 

 Fig. 567. 

 Fig. 568. 

 Fig. 569- 

 Fig. 570. 

 Fig. 571. 

 Fig. 572. 

 Fig. 573. 

 Fig. 574- 

 Fig. 575- 

 Fig. 576. 

 Fig. 577- 

 Fig. 578. 

 Fig. 579. 



Calobata univitia, caudal aspect. 



Calobala univitta, lateral aspect. 



Sapromyza vulgaris, lateral aspect. 



Sapromysa z-ulgaris, caudal aspect 



Chloropisca glabra, caudal aspect 



Chloropisca glabra, lateral aspect 



Chrysomysa demandaia, caudal aspect 



Chrysomysa demandaia, lateral aspect 



Coelopa vanduzeii, caudal aspect 



Coelopa vanduzeii, lateral aspect 



Pipunculus cingulatus, caudal aspect. 



Pipunculus cingulatus, lateral aspect 



Drosophila anipelophila, caudal aspect 



Drosophila ampelophila, lateral aspect. 



Borborus equinus, lateral aspect. 



Borborus equinus, caudal aspect 



Borborus equinus, h>'popharynx united with labimn, caudal aspect. 



Chyromya concolor, caudal aspect 



Chyroniya concolor, lateral aspect. 



Loxocera pectoralis, caudal aspect 



Loxocera pectoralis, lateral aspect 



Euaresta aequalis, caudal aspect 



Euaresta aequalis, lateral aspect 



Ochthera mantis, lateral aspect 



Ochtkera mantis, caudal aspect of the labruin. 



Ochthera mantis, caudal aspect of the epipharynx. 



Ochthera mantis, caudal aspect 



Desmometopa latipes, lateral aspect. , 



Desmometopa latipes, caudal aspect 



