. Contributions to the natural history of the Lepidoptera of North America ... Lepidoptera. _19 ruddy shading on both sides of the median wliitish area is very bright pinkish whereas in those specimens of pluviata which show a ruddy tinge the color is dull and more generally suffused over the entire wing surface. The time of flight would appear to be somewhat earlier; the Catskill Mt. specimens were captured in late May whereas pluvxata, which is common in the same locality, judging by a long series before us from the Pearsall Collection, is at the height of its flight in mid-June, continuing
. Contributions to the natural history of the Lepidoptera of North America ... Lepidoptera. _19 ruddy shading on both sides of the median wliitish area is very bright pinkish whereas in those specimens of pluviata which show a ruddy tinge the color is dull and more generally suffused over the entire wing surface. The time of flight would appear to be somewhat earlier; the Catskill Mt. specimens were captured in late May whereas pluvxata, which is common in the same locality, judging by a long series before us from the Pearsall Collection, is at the height of its flight in mid-June, continuing into July. Finally the Uncus of per- fracta examined under the binocular shows a narrow neck of the frigidata type with the forks distinctly divergent, whilst in plmiata the neck is more of the cacnilata type showing scarcely any contraction, with the lateral edges forming almost a straight line from apex of forks to base of neck. These differences may or may not prove specific when more material can be examined and life histories studied but for the present no great harm is done by treating the two forms as distinct species. We have two specimens from Vancouver Island, B. C. which seem best treated as a race of this species and for which we propose the name exasperata ; they are slightly smaller than typical pcrfracta (28 mm.) and are more sharply marked, the cross-lines being heavy and distinct; the whole of the primaries is evenly suffused with a ruddy color giving the form a great similarity to californiata Pack, from which it may at once be separated by the shape of the Uncus (PI. VIII, Fig. 6) which is very similar to that of perfracta. the forks being rather chunkier and somewhat shorter and the neck slightly thicker. Our types are 2 i's, the one from Departure Bay, Vane. Is. B. C. (July 13), the other from Wellington, B. C. (June 23) both originally collected by Rev. G. W. Taylor. Hydriomena marinata sp. nov. (PI. VI, Fig. 6). Palpi moderate; primaries olive-green whh a
Size: 1311px × 1906px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectlepidoptera
