. A manual of dangerous insects likely to be introduced in the United States through importations. s in December (Victoria). Pupates in length 25 mm.; whitish; tunnels roots of trees. Eggs deposited on uppersides of leaves, which have their edges glued together, hiding the eggs. Depositedin masses of 40 to 50. (See text fig. 7b.) Distribution: , C. Handbook of Destructive Insects of Victoria, 1891, pt. 1, p. 71. Magdalis barbicornls Latreille. (Apple-stem Piercer. Curculionidae; Coleoptera.) Hosts: Apple, quince, and medlar trees. Injury: To twigs. Description and b
. A manual of dangerous insects likely to be introduced in the United States through importations. s in December (Victoria). Pupates in length 25 mm.; whitish; tunnels roots of trees. Eggs deposited on uppersides of leaves, which have their edges glued together, hiding the eggs. Depositedin masses of 40 to 50. (See text fig. 7b.) Distribution: , C. Handbook of Destructive Insects of Victoria, 1891, pt. 1, p. 71. Magdalis barbicornls Latreille. (Apple-stem Piercer. Curculionidae; Coleoptera.) Hosts: Apple, quince, and medlar trees. Injury: To twigs. Description and biology: Adult length mm.; black; neck-shield withoutknobs on sides; very thickly punctate, elytra strigose-punctate, the space betweenpunctations ridged. Occurs in June. Pupates in gallery in twig under burrows in twig, by preference in bark, to the sapwood which is only slightlyattacked; the bark becomes reddish-brown and sinks —17 2 18 A MANUAL OF DANGEROUS INSECTS. Distribution: , G. a. O. Die Schadlichen Forst- und Obstbaum-Insekten, 1895, p. a b Fig. 7.—Work of apple weevils: a, Apple buds injured by Anthonomus pomorum (Henschel);^6, appl«root tunneled by Leptops hopei (French). Anthonomus pomorum Linnaeus.(Apple-blossom Weevil. Curculionidae; Coleoptera.) Host: Apple, pear. Injury: Often very destructive to injurious to buds and blossoms; adultfeeds on leaves. Description and biology: Adult length 3 to4 mm.; pitch black or fuscous black, withashy pubescence; most easily recognized bypale V-shaped mark on elytra. Appear inlate spring and live until next spring, whenthey copulate and oviposit. Hibernate inrubbish. Pupa yellowish brown. Pupatesin withered flower bud. Pupation lasts 7 to10 days. Larva length 4-5 mm.; white,footless, head brown; feeds in flower stage 8 days to 3 weeks. Eggs de-posited in blossom buds. A single femaledeposits 50 or 60 during a period of 2 weeks.(See text figs. 7a, 8.) Di
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