. Bulletin. Natural history; Natural history. 66 Illinois Natlrai. History Survey Vol. 26, Art. 1 "^^^^i. ^•x;«te>» Fig. 172. — Epiiemerclla frisoui, mature nytnph, dorsal aspect. fore femur light brown, fore tibia and tarsus and all of middle and hind legs white; wings hyaline, with brown stain at base of each wing, each fore wing milky in stigmatic area. Abdominal tergites 1-7 and anterior half of tergite 8 white, usually with a fine, median, dorsal, brown line and a pair of small, brown, lateral marks on each tergite; pos- terior half of tergite 8. and tergites 9 and 10,
. Bulletin. Natural history; Natural history. 66 Illinois Natlrai. History Survey Vol. 26, Art. 1 "^^^^i. ^•x;«te>» Fig. 172. — Epiiemerclla frisoui, mature nytnph, dorsal aspect. fore femur light brown, fore tibia and tarsus and all of middle and hind legs white; wings hyaline, with brown stain at base of each wing, each fore wing milky in stigmatic area. Abdominal tergites 1-7 and anterior half of tergite 8 white, usually with a fine, median, dorsal, brown line and a pair of small, brown, lateral marks on each tergite; pos- terior half of tergite 8. and tergites 9 and 10, light brown; abdominal sternum white, usually with a pair of lateral, brown dots on each stcrnite; caudal filaments entirely white, articulations not darkened. Genitalia, fig. 123, white, with forceps faintly shaded with tan. NvMPH.—Fig. 172. Length of body mm., of caudal filaments mm. General color light yellowish tan, sometimes almost white, with small and variable brown markings. Vertex of head, dorsal area of pronotum, and (usually) basal area of front wingpads with irregular, light brown markings; apexes of femora and bases of tibiae usually shaded with light brown; a minute, dark brown dot present at apicoventral angle of each trochanter. Dorsal part of abdominal ter- gites fairly uniformly shaded with light brown in area not covered by gills, elongate, dark brown markings along line of inner dorsal margins of gills and on median dorsal line; abdominal venter rather uniformly shaded with light tan, this shading freckled with light yellow or white dots; a minute, dark brown dot present near lateral margin of each abdominal sternite, these dots form- ing a sublateral row on either side of ab- dominal venter; basal half of each postero- lateral projection of sternites shaded with tan; each caudal filament with a single tan crossband usually present near base. Head and thorax without tubercles; max- illary palps present, but somewhat degen- erated, fi
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
