August, 1944 



Ross: Caddis Flies of Illinois 



163 



ing each other on meson to form an 



arcuate mark, fig. 565 



Ptilostomis, p. 1 7 1 



Pupae 



Mandibles short and fleshy, some- 

 times with a small mesal point but 

 without an apical blade, much 

 shorter than labrum, fig. 567 2 



Mandibles long, with a sclerotized 

 apical blade, figs. 568, 569 5 



2. Apical processes of abdomen long and 



not widely separated, fig. 570 



Banksiola, p. 1 69 



Apical processes of abdomen short and 

 their apical points very widely sep- 

 arated, fig. 571 3 



3. Posterior plate of fifth tergite with 6 



teeth forming one row, fig. 574; 

 apical projection of first tergite 

 elongate, membranous and trun- 

 cate Phryganeid Genus A, p. 167 



Posterior plate of fifth tergite with 



572 



573 



574 



575 



576 



Fig. 567. — Banksiola selina pupa, mandi- 

 bles and labrum. 



Fig. 568. — Agrypnia vestita pupa, mandibles 

 and labrum. 



Fig. 569. — Phryganea sayi pupa, mandibles 

 and labrum. 



Fig. 570. — Banksiola selina pupa, apex of 

 abdomen. 



Fig. 571. — Phryganeid Genus A pupa, apex 

 of abdomen. 



Fig. 572. — Ptilostomis ocellifera pupa, first 

 tergite. 



Fig. 573. — Eubasilissa pardalis pupa, first 

 tergite. (After Lloyd.) 



Fig. 574. — Phryganeid Genus A pupa, hook 

 bearing abdominal plates. 



Fig. 575. — Ptilostomis ocellifera pupa, hook 

 bearing abdominal plates. 



Fig. 576. — Phryganea sayi pupa, hook bear- 

 ing abdominal plates. 



Fig. 577. — Agrypnia vestita pupa, hook 

 bearing abdominal plates. 



