. The Canadian entomologist. Insects; Entomology. Fig. 7.—Protodiaspis agrifoliae Essig. A, pygidium; B, type of duct. Adult Female.—Length .5 mm., form oval. Derm everywhere mem- branous except for the anal ring, and a faintly chitinized area immediately about and caudal of the anal orifice. Dorsum of the pygidum (Fig. lA) with numerous small tubular ducts, and the margin of the body with a continuous narrow zone of such ducts. Circumgenital pores present, arranged in an almost continuous arch of 20—30 pores. There appear to be no gland spines at any point on the body. Second Stage.—Figured b
. The Canadian entomologist. Insects; Entomology. Fig. 7.—Protodiaspis agrifoliae Essig. A, pygidium; B, type of duct. Adult Female.—Length .5 mm., form oval. Derm everywhere mem- branous except for the anal ring, and a faintly chitinized area immediately about and caudal of the anal orifice. Dorsum of the pygidum (Fig. lA) with numerous small tubular ducts, and the margin of the body with a continuous narrow zone of such ducts. Circumgenital pores present, arranged in an almost continuous arch of 20—30 pores. There appear to be no gland spines at any point on the body. Second Stage.—Figured by Essig as possessing small lobes, but in a mount of the exuvia at hand it appears not to diff'er from the adult. Notes.—Structurally this appears to be so close to P. parvula that there can be but little doubt that the two are strictly congeneric, in spite of the state- ment that the former species possesses no definite 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 Entomological Society of Canada (1863-1871); Entomological Society of Canada (1951- ); Entomological Society of Ontario. Ottawa [etc. ] Entomological Society of Canada [etc. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubje, booksubjectentomology
