Ontario Sessional Papers, 1908, . Fig. 10. San Jose Scale (Aspidiotus perniciosus). {a) Four young scales and two malescales, showing the nipple and ring even in the very young forms; (b) four immaturefemale scales, and two nearly grown male scales, showing the prominent nipple andcircular groove about the nipple, of the black scales; (c) two small female grayscales, showing the central nipple and circular groove. One scale has a nipple notcentral. The body of insect is beneath the scale. Parasites. (1) Two small Chalcid flies, Aphelinus mytilaspidis (Le Baron), andAphelinus fuscipenn
Ontario Sessional Papers, 1908, . Fig. 10. San Jose Scale (Aspidiotus perniciosus). {a) Four young scales and two malescales, showing the nipple and ring even in the very young forms; (b) four immaturefemale scales, and two nearly grown male scales, showing the prominent nipple andcircular groove about the nipple, of the black scales; (c) two small female grayscales, showing the central nipple and circular groove. One scale has a nipple notcentral. The body of insect is beneath the scale. Parasites. (1) Two small Chalcid flies, Aphelinus mytilaspidis (Le Baron), andAphelinus fuscipennis, (How.) (2) Two ladybird beetles, Pentilia misella, (Lee), fig. 15, and Chilo-corns bivulnerus, (Muls.) (3) In some districts a fungus ,Sphcerostilha coccophila,. It is difficultto say whether the latter is at work in Ontario. 54 THE REPORT OF THE No. 19 Note.—At the 1906 meeting of the Entomological Society of Ontario, 1gave observations on a scale insect, which I thought to be the San Jose scale,in gardens at Toronto. Since that ti
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