Annual report ..[bulletins and circulars] . * Figures 91, 92 and 93 are adapted from Dr. R. Leuckarts Zoologicalcharts. 133 stinging and biting are entirely without foundation. They areshort-lived in the adult stage. The name of the family to whichthey belong, Ephemeridce, suggests their ephemeral is of these that poets have 92.^ The I\lay-fly sheds its nymph skin. ( Tyvice natural size. Stone-fly nymphs also cling closely to the flat stones. Thecast skins of these are frequently found on the banks of resemble the May-fl} nymphs but can be identified by com-par
Annual report ..[bulletins and circulars] . * Figures 91, 92 and 93 are adapted from Dr. R. Leuckarts Zoologicalcharts. 133 stinging and biting are entirely without foundation. They areshort-lived in the adult stage. The name of the family to whichthey belong, Ephemeridce, suggests their ephemeral is of these that poets have 92.^ The I\lay-fly sheds its nymph skin. ( Tyvice natural size. Stone-fly nymphs also cling closely to the flat stones. Thecast skins of these are frequently found on the banks of resemble the May-fl} nymphs but can be identified by com-paring with these illustrations. (See Fig. 93.) Sometimes on the very brink of a cataract one will see whatappears like patches of loose black moss. Strangely enough,these are the larvae of black flies, related to the terrible Punkies of the north woods. The black fly larvae can live 134 only in the swiftest water. There they pass through their trans-formations and succeed in emerging into their aerial stage, inspite of the rushing current.
Size: 1637px × 1526px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherithac, bookyear1899
