. A manual of dangerous insects likely to be introduced in the United States through importations. nthe bark or in crevices of wounds near lower part of the trunk. Larvx on hatchingbore into the inner part of bark, where the entire grub stage is passed; pupate in acavity made of grass. (See plate xxx.) Distribution: Philippine Islands. Jones, C. R. The Philippine Agric. Review, 1913, vol. 6, No. 3, pp. 118-124, pis. gravis Fabricius. (Cryptorhynchus). (Northern Mango Weevil. Curculionidae; Coleoptera.) Host: Mango. Injury: This is the common mango weevil of Northern India, and
. A manual of dangerous insects likely to be introduced in the United States through importations. nthe bark or in crevices of wounds near lower part of the trunk. Larvx on hatchingbore into the inner part of bark, where the entire grub stage is passed; pupate in acavity made of grass. (See plate xxx.) Distribution: Philippine Islands. Jones, C. R. The Philippine Agric. Review, 1913, vol. 6, No. 3, pp. 118-124, pis. gravis Fabricius. (Cryptorhynchus). (Northern Mango Weevil. Curculionidae; Coleoptera.) Host: Mango. Injury: This is the common mango weevil of Northern India, and is liable to beintroduced in seed. 144 A MANUAL OF DANGEROUS INSECTS. Description and biology: Adult weevil rusty brown to blackish brown, mottled withgrayish patches; length 9 mm. Beak long. The entire development takes place in the fruit, the larvae first feeding iii the pulp,then entering the seed. (See text fig. 71.) Distribution: India (Bengal, Assam. UnitedProvinces). Stebbing, E. p. Indian Forest Insects, Cole-optera. p. 436, fig. 289. Sternoehetus manglferae Fabricius.(Cryptorhynchus.). (Mango Weevil. (\irculionidi¥; Coleoptera.) Host: Mango. Injury: Serious enemy of mango, especiallyin Hawaii, where it is reported to have infestedfrom 60 to 90 per cent of the crop. Liable tobe introduced in seed. Description and biology: Adult weevil, variesfrom 6 to 8 mm. in length; when nearly de-veloped whitish pink in color, later changingto a dark brown with yellow markings; beakshort, thick, and when at rest turned backbeneath the thorax in a groove terminating between the first pair of legs. The egg isdeposited in the fleshy part of the fruit, and on hatching the larva enters the seed,where it undergoes its entire development, vacating as an adult. Fig. 71.—Northern mango weevil (Sternochetus gravis): Adult. (Maxwell-Lefroy.)
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