. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 163 ing each other on meson to form an arcuate mark, fig. 565 Ptilostomis, p. 171 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. 169 Apical processes of abdomen short and their apical points very widely sep- arated, fig. 571 3 3. Posterior plate of fifth tergite with 6
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 163 ing each other on meson to form an arcuate mark, fig. 565 Ptilostomis, p. 171 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. 169 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 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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