. A manual of dangerous insects likely to be introduced in the United States through importations. e. Injury: Feeds on the seed, spinning a web among thefruiting heads. Description and biology: Moth, wing expanse 26 mm.,. forewings light yellow ochraceous, with two rusty-browntransverse lines, violet-gray fringe. Larva yellowishgreen, with lateral gray stripe and four dorsal rows ofdark-brown spots; head and thoracic shield black;18 , P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 308. B. OTHER IMPORTANT RAPE INSECTS. COLEOPTERA. ,.« Nitidulidae. Ss Meligethes xneva Fa
. A manual of dangerous insects likely to be introduced in the United States through importations. e. Injury: Feeds on the seed, spinning a web among thefruiting heads. Description and biology: Moth, wing expanse 26 mm.,. forewings light yellow ochraceous, with two rusty-browntransverse lines, violet-gray fringe. Larva yellowishgreen, with lateral gray stripe and four dorsal rows ofdark-brown spots; head and thoracic shield black;18 , P. Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, p. 308. B. OTHER IMPORTANT RAPE INSECTS. COLEOPTERA. ,.« Nitidulidae. Ss Meligethes xneva Fabricius: Europe: larvae feed on young sHbots. Curculionidae. Ceutorhynchus asuimilis Paykull: Europe: breeds in ^ Ceutorhynchus quadridtns Panzer: Europe: Long Island, N. Y. breeds in sulcicolUs: Europe; forms galls on roots. (See text fig. 89.) LEPIDOPTERA. Hepialidse. Hepialus humvli Linnaeus; Europe. (See Hops.) 89.—Galls of Ceutorhynchus on rape. (Ritzema Dasyneura brasncx Winner; Europe; attacks fruit. (See Bos.) Cabbage.). See Blackberry. (Cakmtts spp. Family Palmaceae.) Palms of tropical Asia, some of wliich are used to furnish rattan canes. They makeexcellent conservatory plants. IMPORTANT RATTAN INSECTS. Lyctus brunneus Stephens; Europe, Australia; bores in furniture and sapwood on unseasoned timber LITERATURE. Froggatt, W. W. Australian Insects, 1907. INSECTS OF RHUBARB AND RICE. 189 RHUBARB. {Rheum rhaponticum, etc. Family Polygonaceae.) Robust perennial herbs originating in Asia and Russia. The rhubarb plant hasbeen developed into several garden varieties. Propagated by root division or fromseed. IMPORTANT RHUBARB INSECTS, Chsetocnema concinna Marsh; flea-beetle; Europe. Phyllotreta nemorum Linnaeus; Europe. (SeeCrucifers.) Curcxillonldse. Hypera rumicis Linnseus; Europe; breeds on leaves. RICE. (Oryza sativa Linnseus. Graminese.) Rice is
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