. Ontario Sessional Papers, 1905, . Fig 60. Fig. 61, The Psylla winters in the full-grown or perfect state, a minutebrick-red fly, about one-eighth of an inch in length. From the broad headthe body tapers to a point at the caudal extremity. There are two pairs oflarge transparent wings, which when closed cover the body. The thighs areabnormally developed, which enables it to jump a long way; hence the namePear-tree Flea-louse. In form this insect is the counterpart of the Dog- 1904 ENTOMOLOGICAL SOCIETY. 109 day Harvest fly (Cicada) in ininialuro (Fij^.GO). During the winter it se-cur
. Ontario Sessional Papers, 1905, . Fig 60. Fig. 61, The Psylla winters in the full-grown or perfect state, a minutebrick-red fly, about one-eighth of an inch in length. From the broad headthe body tapers to a point at the caudal extremity. There are two pairs oflarge transparent wings, which when closed cover the body. The thighs areabnormally developed, which enables it to jump a long way; hence the namePear-tree Flea-louse. In form this insect is the counterpart of the Dog- 1904 ENTOMOLOGICAL SOCIETY. 109 day Harvest fly (Cicada) in ininialuro (Fij^.GO). During the winter it se-cures shelter in the crevices of the bark on the trunks and large limbs of thetrees, in nearby rubbish, or wherever it can find protection; hence the advan-tage of clean culture, in which case it will be confined to the trees. Thesmall lemon-coloured eggs are laid about the middle of April, and hatch aboutthe middle of May, according to weather conditions (Figure til). There areprobably four broods in a season. When the nymphs appear, if there
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