. Manual of fruit insects. in the mine. Themines are finished in September, the caterpillars transformto pupae therein, and the winter is passed in this stage on thefallen leaves. The minute Tineid moths which emerge in thespring have golden brown front wings marked with whitestreaks and spots and a black apical spot (Fig. 76). ThisEuropean miner is quite common on apple leaves in theeastern United States, but has not yet been recorded asdoing serious injury. References Brunn, Cornell Univ. Exp. Sta., Second Rept., pp. 148-150. 1883. The unspotted tentiform leaf-miner (Ornix geminatella Packar
. Manual of fruit insects. in the mine. Themines are finished in September, the caterpillars transformto pupae therein, and the winter is passed in this stage on thefallen leaves. The minute Tineid moths which emerge in thespring have golden brown front wings marked with whitestreaks and spots and a black apical spot (Fig. 76). ThisEuropean miner is quite common on apple leaves in theeastern United States, but has not yet been recorded asdoing serious injury. References Brunn, Cornell Univ. Exp. Sta., Second Rept., pp. 148-150. 1883. The unspotted tentiform leaf-miner (Ornix geminatella Packard). The tentiform mines of this insect are larger, and distortthe leaves more thanthose of the precedingspecies (Fig. 77). Thegrayish caterpillars,about \ of an inchlong, have a row of 6black spots across thehead and 4 larger onesacross the dorsum ofthe first thoracic seg-ment. They eat thewhole interior exceptthe veinlets, so thatthe mine appearsbrownish but notspotted on the uppersurface. When nearlyfull-grown the cater-. FiG. 77. Mines of the unspotted tentiformleaf-miner. 74 FRUIT INSECTS pillars leave their mines, and rolling over the edge of the leaffeed beneath for a short time, then line these retreats heavilywith a silken cocoon within which they pupate. There areseveral broods each season. The tiny, dark, steel-gray mothsemerge in the spring and measure onlj^ | of an inch acrossthe expanded wings. This miner is widely distributedacross the northern half of the United States, and is ap-parently more common than the spotted tentiform some cases two-thirds of the leaves in orchards have beendistorted by from 2 to 4 of the unspotted mines, yet no veryserious injury resulted. The insect also attacks pear and wild cherrj foliage. References Brunn, Cornell Univ. Exp. Sta., Second Rept., pp. 151-154. 1883. Forbes, 4th Rept. State Ent. 111., pp. 51-57. 1889. N. Y. (Geneva) Agr. Sta. Bull. 180, pp. 131-134. 1900. The serpentine leaf-miner {Nepticula poniivorella
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1915
