. Annual report, including a report of the insects of New Jersey, 1909. THE INSECTS OF NEW JERSEY. 119 N. rubi Kalt. A blackberry-plant louse which I have seen abundantly at Hammonton, and occasionally in smaller numbers elsewhere in the State. N. liriodendri Monell. Sometimes common on leaves of tulip trees. In harmful numbers at Vineland in 1899. N. rudbeckiae Fitch. Occurs commonly on ragweed, golden-rod and other plants. N. viticola Thos, Montclair, Perth Amboy (U S Ag), and generally throughout the State on grape. Family This little family^ popularly known as "white flie
. Annual report, including a report of the insects of New Jersey, 1909. THE INSECTS OF NEW JERSEY. 119 N. rubi Kalt. A blackberry-plant louse which I have seen abundantly at Hammonton, and occasionally in smaller numbers elsewhere in the State. N. liriodendri Monell. Sometimes common on leaves of tulip trees. In harmful numbers at Vineland in 1899. N. rudbeckiae Fitch. Occurs commonly on ragweed, golden-rod and other plants. N. viticola Thos, Montclair, Perth Amboy (U S Ag), and generally throughout the State on grape. Family This little family^ popularly known as "white flies," contains only a few small species in New Jersey, and most of these are of practically no im- portance except on plants under glass. "White flies" are dangerous pests in Florida and California on citrus plants, and occur in numbers in warmer countries generally. They somewhat resemble plant lice in appearance, but are covered with a fine whitish powder or flour. In the larval stage they somewhat resemble scales, but as adults both sexes have four well- developed wings. In the last edition only three species were listed, and very little collect- ing has been done to increase this number in New Jersey; but Dr. W. E. Britton, of Connecticut, has recently devoted considerable time to the study of these little creatures, and he has been good enough to prepare the following list of species, which he thinks will certainly be found in our territory when properly sought ALEYRODES Latr. A. abutilonea Hald. Infests "Abutilon avicenn^" in Pennsylvania and should be found in New Jersey. A. acteae Britton. Described from Connecticut on baneberry, "Actea alba" (W. B. B.), and will prob- ably occur in New Jer- sey. A. copy I i Britton. Described from Connecticut, where it occurs through- out the State; locally common on hazel nut and occasional on black- berry (W. E. B.). Should occur in New Jersey. A. corni Hald. On "Cornus sericea" in Pen
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