264 Bulletin of Laboratories of Denison University 
[Vol. XI. 
EXPLANATION OF PLATES. 
PLATE LIX. 
Wing of Panorpa, t female latipennis; 2 male nuptialis; j male latipennis; 
^ male venosa ; 5 female amencana ; 6 male maculosa ; 7 male lugubris. Side 
view of the end of abdomen of male Panorpa, 8 signifer. Side view of end of 
abdomen of male Bittacus, g strigosus. Dorsal view of cheliferous segment of 
male Panorpa, 10 rufescens, (a) uncus, (b) harpe. 
PLATE LX. 
Wing of Panorpa, // female rufescens ; J2 male signifer; male confusa; 
male claripennis ; .?/ male nebulosa; 22 male rufescens ; 2j male venosa; 
2^ male canadensis. Side view of end of abdomen of male Bittacus, 75 apterus ; 
16 apicalis ; // pilicornis ; jg puntiger; 20 stigmaterus. Dorsal view of cheli- 
ferous segment of male Panorpa, 18 venosa. 
PLATE LXL 
Wing of Panorpa, 2^ male subfurcata ; 26 male nuptialis; 2y female con- 
fusa; 28 male banksii. Side view of end of abdomen of male Panorpa, jo sub- 
furcata ; j>/ rufescens; ^2 latipennis; jd claripennis; ^8 venosa; jp canadensis. 
Dorsal view of cheliferous segment of male Panorpa, jj nuptialis; 24 confusa. 
Dorsal view of abdominal appendages of male Bittacus, 25 occidentis. Side 
view of the abdominal appendages of male Bittacus, j/ chlorostigma. 
