. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 95 38. Clasper receptacle large, nearly as high as long, fig. 386//. .valanis, p. 105 Clasper receptacle much shallower, but usually wide, fig. 386A:-A^ 39 39. Lateral lobes of eighth sternite close together at base, mesal margins forming a wide V, figs. 389^, 390. . 40 Lateral lobes of eighth sternite farther apart, their mesal margins diverg- ing less, fig. 3895 41 40. Clasper receptacle appearing, from dorsal view, with a swollen portion basad of dorsal point, fig. 387/. . scalaris, p. 106 Clasper rece
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 95 38. Clasper receptacle large, nearly as high as long, fig. 386//. .valanis, p. 105 Clasper receptacle much shallower, but usually wide, fig. 386A:-A^ 39 39. Lateral lobes of eighth sternite close together at base, mesal margins forming a wide V, figs. 389^, 390. . 40 Lateral lobes of eighth sternite farther apart, their mesal margins diverg- ing less, fig. 3895 41 40. Clasper receptacle appearing, from dorsal view, with a swollen portion basad of dorsal point, fig. 387/. . scalaris, p. 106 Clasper receptacle appearing, from dorsal view, with basal portion con- fluent in outline with dorsal point, fig. 387/ frisoni, p. 105 41. Clasper receptacle appearing, from lateral view, with dorsal point acute and near middle, its posterior "tail" slender, long and slightly concave dorsad, fig. 386/C, L 42 Clasper receptacle appearing, from lateral view, with dorsal point rounded or near posterior margin and with posterior "tail" conse- quently short, fig. 386M, A'' 43 42. Antero-Iateral lobe of ninth tergite long and narrow, its apex rounded, its contour following its demarcation line, fig. 3S6K orris, p. 106 Antero-Iateral lobe of ninth tergite narrower at base, wider at apex, which is produced as a somewhat angulate lobe, fig. 386Z, bidens, p. 107 43. Clasper receptacle with dorso-mesal portion narrow, fig. 386A'^. ....... incotnmoda, p. 106 Clasper receptacle with dorso-mesal portion wide and arcuate, with a pronounced posterior loop, fig. 386A/ simulans, p. 104 44. Clasper receptacle nearly globular and small, fig. 3875 bronta, p. 98. BIFIDA Fig. 387.—Hydropsyche, female ninth 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 o
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
