. Report on the injurious and other insects of the State of New York . 328 FoRTT-t-siXTH Report on the State Museum The mature insects made their appearance about June 15th, and com-menced to feed soon after emerging. They appear to secrete nohoney-dew. Within a week copulation ensued, and oviposition soonbegan. There were at least four broods during the year, at intervalsof about a month. The adults of the summer broods Avere the mostnumerous July 2()th, August 20th, and September 25th — the lastconstituting the hibernating form. This last-named form varied so much from the preceding summerbr
. Report on the injurious and other insects of the State of New York . 328 FoRTT-t-siXTH Report on the State Museum The mature insects made their appearance about June 15th, and com-menced to feed soon after emerging. They appear to secrete nohoney-dew. Within a week copulation ensued, and oviposition soonbegan. There were at least four broods during the year, at intervalsof about a month. The adults of the summer broods Avere the mostnumerous July 2()th, August 20th, and September 25th — the lastconstituting the hibernating form. This last-named form varied so much from the preceding summerbroods, being one-third larger and of much darker colors, that theywere believed, at first, to be a different species. On careful comparisonwith descriptions of Psylla simulans Foerster, of Europe, it was foundto present so close a resemblance as to leave scarcely a doubt that had been described from the winter form of P. pyricola, andthat the species is dimorphic, appearing in two distinct forms duringthe year, as some others of the Psyllida> are know
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbenefic, bookyear1882
