. Bulletin. Natural history; Natural history. 629 630 Limnephilidae Front Wings Fig. 626.—Platycentropus radiatus. Fig. 627.—Radema stigmatella. Fig. 628.—Glyphotaelius hostilis. Fig. 629.—Phanocelia canadensis. Fig. 630.—Chilostigma 184 Fig. 631.—Limnephilidae front wings. A, Glyphopsyche missouri; B, Glyphopsyche irro- rata; C, Grensia praeteritum\ D, Frenesia miss a. Apex of front wings either evenly rounded or incised without scalloped condition, figs. 629, 6315 5 5. Dorsum of head and pronotum greatly lengthened, with a deep, narrow groove running their entire length, fig. 644


. Bulletin. Natural history; Natural history. 629 630 Limnephilidae Front Wings Fig. 626.—Platycentropus radiatus. Fig. 627.—Radema stigmatella. Fig. 628.—Glyphotaelius hostilis. Fig. 629.—Phanocelia canadensis. Fig. 630.—Chilostigma 184 Fig. 631.—Limnephilidae front wings. A, Glyphopsyche missouri; B, Glyphopsyche irro- rata; C, Grensia praeteritum\ D, Frenesia miss a. Apex of front wings either evenly rounded or incised without scalloped condition, figs. 629, 6315 5 5. Dorsum of head and pronotum greatly lengthened, with a deep, narrow groove running their entire length, fig. 644 Leptophylax, p. Dorsum of either head or pronotum, or both, much shorter, and head without mesal groove 6. Front wings with fork of Mi-|-2 con- siderably beyond crossvein r-m, fig. 629 Phanocelia, p. Front wings with fork of M1-1-2 at or near crossvein r-m, fig. 630 7. Dorsum of head bright yellow, highly polished and with only a few short, black setae Astenophylax, p. 183 Dorsum of head either dark, dull or with long or abundant setae 8. Vertex and anal portion of front wings covered with close, appressed, silky hair Hesperophylax, p. Vertex without close, appressed hair 9. Front wings with a short, rounded stigma (bordered below by Ri) and with R2 also curved parallel with it or even more curved, figs. 630, 631; never with a longitudinal silvery line Front wings either with a longitudinal silvery line, fig. 633, or with stigma 201 7 8 183 9 10. 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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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory