. Manual of fruit insects. rge as a lead pencil, for these are theexit or emerging holes of the adult insect or beetle. The grubor borer has finished its nefarious work and transformed intothe handsome beetle, which made the hole, and flew away toseek its mate and provide for more destructive work by theirprogeny. Reference U. S. Bur. Ent. Circ. 32 (third revise). 1907. The Spotted Apple-tree Borer Saperda cretata Newman This Cerambycid beetle is very similar to its near relative,the round-headed apple-borer,both in appearance and beetle of the spotted boreris about the same size an
. Manual of fruit insects. rge as a lead pencil, for these are theexit or emerging holes of the adult insect or beetle. The grubor borer has finished its nefarious work and transformed intothe handsome beetle, which made the hole, and flew away toseek its mate and provide for more destructive work by theirprogeny. Reference U. S. Bur. Ent. Circ. 32 (third revise). 1907. The Spotted Apple-tree Borer Saperda cretata Newman This Cerambycid beetle is very similar to its near relative,the round-headed apple-borer,both in appearance and beetle of the spotted boreris about the same size and form,but differs in being of a darkerbrown color with its legs, antennae,head and the middle portion of theventral surface of the same browncolor. Two broad, silvery whitestripes extend along the sides ofthe thorax and abdomen and thereare two similar narrow stripes onthe dorsum of the thorax. Thecontinuous white stripes on thewing-covers of the beetle of theround-headed borer are replacedby two large white spots on theo. Fig. 185. — The spotted apple-treeborer (x 2^). 194 FRUIT INSECTS wing-covers of this borer (Fig. 185). Although this insectis widely distributed throughout practically the same ter-ritory as its near relative, it has been recorded as injuriousonly in Iowa and Michigan. Besides injuring apple and wildcrab trees, it also attacks Juneberry and thorn. The beetles aresaid to lay their eggs in the bark in pairs, half an inch or moreapart. The grubs of each pair upon hatching then work inopposite directions around the trunk or branch, at first justbeneath the bark, and afterwards entering the hard wood. The remedial measures suggested for the round-headed borer,Saperda Candida, will also apply to this spotted borer, exceptthat the latter often works in the larger branches as well as thetrunk, thus rendering it necessary to extend the protective orpreventive treatments to the branches. ReferenceU. S. Bur. Ent. Cire. 32 (third revise). 1907. The larva of another l
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