. Bulletin. Natural history; Natural history. 330 ILLINOIS NATURAL HISTORY SURVEY BULLETIN XX:IV i 232 233 234 235 subqenifal plate 23t, 237 238 2J9. Female Abdominal Sternites, Showing Subgenital Plate Fig. 232.—Chloroperla cydippe. Fig. 233.—Isoperla decepta. Fig. 234.—Isoperla yninuta. Fig. 235.—Isoperla richardson'u Fig. 236.—Isoperla bilineala. Fig. 237.—Isoperla hilineata. Fig. 238.—Isoperla mohri. Fig. 239.—Isoperla conspicua. Fig. 240.—Atoperla ephyre. Fig. 241.—Perk St a placida. Fig. 242.—Acroneuria arida. Fig. 243.—Acroneuria arida. Fig. 244.—Acroneuria riiralis. Fig. 245.—Neoperla
. Bulletin. Natural history; Natural history. 330 ILLINOIS NATURAL HISTORY SURVEY BULLETIN XX:IV i 232 233 234 235 subqenifal plate 23t, 237 238 2J9. Female Abdominal Sternites, Showing Subgenital Plate Fig. 232.—Chloroperla cydippe. Fig. 233.—Isoperla decepta. Fig. 234.—Isoperla yninuta. Fig. 235.—Isoperla richardson'u Fig. 236.—Isoperla bilineala. Fig. 237.—Isoperla hilineata. Fig. 238.—Isoperla mohri. Fig. 239.—Isoperla conspicua. Fig. 240.—Atoperla ephyre. Fig. 241.—Perk St a placida. Fig. 242.—Acroneuria arida. Fig. 243.—Acroneuria arida. Fig. 244.—Acroneuria riiralis. Fig. 245.—Neoperla clymene. Fig. 246.—Acroneuria arida. Fig. 247.—Acroneuria internata. Fig. 248.—Acroneuria abnormis. Fig. 249.—Isoperla duplicata. Fig. 250.—Acroneuria arida. Fig. 251.—Isoperla conjusa. Fig. 252.—Neophasganophora capitata. Fig. 253.—Perlinella drymo. Fig. 254.—Togoperla 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
