110 ILLINOIS BIOLOGICAL MONOGRAPHS [280 



EXPLANATION OF PLATE 

 Epipharynx and Hypopharynx and Associated Parts 



Fig. 551. Calohata univitta, caudal aspect. 



Fig. 552. Calobata univitta, lateral aspect. 



Fig. 553- Saproniyca vulgaris, lateral aspect. 



Fig- 554- Sapro})iyza vulgaris, caudal aspect. 



Fig- 555- Chloropisca glabra, caudal aspect. 



Fig. 556. Chloropisca glabra, lateral aspect. 



Fig. 557. ChrysoDiyza deinandata, caudal aspect. 



Fig. 558. Chrysomyca deinandata, lateral aspect. 



Fig. 559. Coelopa vanduzeii, caudal aspect. 



Fig. 560. Coelopa vanduzeii, lateral aspect. 



Fig. 561. Pipunculus cingulatus, caudal aspect. 



Fig. 562. Pipunculus cingulatus, lateral aspect. 



Fig. 563. Drosophila anipelophila, caudal aspect. 



Fig. 564. Drosophila anipelophila, lateral aspect. 



Fig. 565. Borborus equinus, lateral aspect. 



Fig. 566. Borborus equinus, caudal aspect. 



Fig. 567. Borborus equinus, hypopharynx united with labium, caudal aspect. 



Fig. 568. Chyroinya concolor, caudal aspect. 



Fig. 569. Chyroinya concolor, lateral aspect. 



Fig. 570. Loxocera pectoralis, caudal aspect. 



Fig. 571. Loxocera pectoralis, lateral aspect. 



Fig. 572. Euarcsta aequalis, caudal aspect. 



Fig. 573. Euaresta aequalis, lateral aspect. 



Fig. 574. Ochthera mantis, lateral aspect. 



Fig. 575. Ochthera mantis, caudal aspect of the labrum. 



Fig. 576. Ochthera mantis, caudal aspect of the epipharynx. 



Fig. 57/. Ochthera mantis, caudal aspect. 



Fig. 578. Desmomctopa latipes, lateral aspect. 



Fig. 579. Desmomctopa latipes, caudal aspect. 



