. Annual report on the New York State Museum of Natural History. Science. ENT03rOLOGICAL CONTRIBUTIONS. 157 VI. iNOTKS ON SOME NEW YORK NOCTUIDiE, Diphtera deridens Gueme, Larva resembling an Arctia in form, somewhat narrowed ante- riorly and broadest toward the posterior segments, as represented in Fig. 12. Head white, with black markings as seen at a. Body white, segments rounded, smooth, fig. 12. but from the points where in an r-^ffi&^M^I^Vr^^M Arctia the tubercles are located, soft white hairs, one-fourth of an inch long, radiate, as fine as the finest silk spun by caterpillars,
. Annual report on the New York State Museum of Natural History. Science. ENT03rOLOGICAL CONTRIBUTIONS. 157 VI. iNOTKS ON SOME NEW YORK NOCTUIDiE, Diphtera deridens Gueme, Larva resembling an Arctia in form, somewhat narrowed ante- riorly and broadest toward the posterior segments, as represented in Fig. 12. Head white, with black markings as seen at a. Body white, segments rounded, smooth, fig. 12. but from the points where in an r-^ffi&^M^I^Vr^^M Arctia the tubercles are located, soft white hairs, one-fourth of an inch long, radiate, as fine as the finest silk spun by caterpillars, which curve at their tips and inter- lace, entirely enveloping the body. Length at maturity, in.; diameter at broadest portion, .25 in. On September 4th, it made an oval cocoon, of uniform texture throughout, of fine silk. On the 10th, it had undergone its pupal change; the dark-brown pupa could be distinctl}^ seen through the delicate cocoon. The imago was disclosed May 25th (1862). Acronycta Americana Harris MS. Since the printing of the notes on this species, on page 135 of this Report, I have been permitted to see colored figures of the larva and imago of Acronycta alni Linn. The larva, in its ground color, dorsal series of yellow spots, shape and comparative length of bristles etc., represents our larva so well, that, at the first glance, it might be taken for an accurate representation of it. It has the four long and two short bristles on the first segment, with none on the following two segments, as in ours. The single bristle shown in the figure on segments ten and eleven and the three on segment twelve, are pro- bably inaccuracies of delineation through carelessness of the artist, as evidently are the placing of a bristle on each of the incisures of the sixth segment, and the location of several of the bristles else- where than in the lateral portions of the spots. The spots are show^n as being marked with a number of irregular black lines, like Chaldaic letters,
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1870, booksubjectscience
