This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt: ...on which they may be found. Many of these scale insects are not injurious, but there are also a number of pests of considerable importance. This list is largely based on previous records, and many additions would undoubtedly result from special collecting. An effort has been made to exclude unreliable records. Some of the earlier determinations on which records depend may be erroneous, but it is almost impossible to eliminate this source of error. It is a pleasure to acknowledge the assistance of several coworkers in the preparation of this list. Messrs Comstock, Howard, King, Lowe, Parrott, Pettit and Slingerland have very kindly called my attention to overlooked records, given suggestions as to the synonymy, and also placed at my disposal their own unpublished notes. Coccinae Eriococcus azaleae Comst., on azalea in a greenhouse, Geneva. Comstock, 2d Cornell rep't. p. 132; on wild azalea (Azalea nudiflora), Coy glen, Ithaca. Insect life. 3: 52. Gossyparia ulmi Geoff., elm bark louse, on English, Scotch, Camperdown, American and slippery elm. It is known to occur at the following places: Albany, Catskill, Delmar, Flushing, Ghent, Marlboro, Ogdensburg and Rochester. See rep'ts N.Y. state ent. Also Chatham and Loudonville. Howard in letter. Ripersia maritima Ckll., on roots of Spartina, Hempstead Harbor. Cockerell, Insect life. 7: 42. Dactylopius citri Risso, in greenhouses, New York. Howard in letter. Dactylopius longispinus Targ. (D. adonidum in error) common "mealy bug." This insect is probably present in most greenhouses in the state. Dactylopius trifolii Forbes, on red clover, Ithaca. R. H. Pettit in letter. Dactylopius sp. on quince. Lowe, Geneva Bui. 180. p. 128. Dactylopius sp. (D. Pcockerelli) on grass roots beneath a flat stone and attende...