5-627: Allantinae Blennocampinae Heterarthrinae Nematinae Selandriinae - (includes Dolerinae) Susaninae Tenthredininae Tenthredinidae is the largest family of sawflies , with well over 7,500 species worldwide, divided into 430 genera. Larvae are herbivores and typically feed on the foliage of trees and shrubs, with occasional exceptions that are leaf miners , stem borers, or gall makers. The larvae of externally feeding species resemble small caterpillars. As with all hymenopterans , common sawflies undergo complete metamorphosis. The family has no easily seen diagnostic features, though
10-425: Is a subfamily of sawflies in the family Tenthredinidae , and the largest subfamily of that family, with about 110 genera. The subfamily is considered to consist of five to six tribes, and are medium to large sawflies. Host plants include strawberries, raspberries, roses, violets, dogwood, and loosestrife. Larvae often pupate in fruit or wood. Monostegia abdominalis has larvae that feed on Primulaceae , and
15-491: The fossil record such as Eriocampa tulameenensis and Pseudosiobla campbelli of British Columbia . The Tenthredinidae are divided into seven subfamilies. Of the 430 genera, nine contain more than 50 species. Subfamilies and genera within this family include: Of these subfamilies, Tenthredininae and Allantinae are sister groups , and together form a sister group to the Nematinae. Allantinae Allantinae
20-549: The combination of five to nine antennal flagellomeres plus a clear separation of the first abdominal tergum from the metapleuron can reliably separate them. These sawflies are often black or brown, and 3 to 20 mm long. Like other sawflies, they lack the slender "wasp-waist", or petiole , between the thorax and abdomen, characteristic of many hymenopterans . The mesosoma and the metasoma are instead broadly joined. The Tenthredinidae are also often somewhat dorsoventrally flattened, which will distinguish them at least from
25-543: The slender cephids (which, together with the common sawflies, comprise many of the Nearctic species of Symphyta). Females use their saw-like ovipositors to cut slits through barks of twigs, into which translucent eggs are wedged, which damages the trees. They are common in meadows, and in forest glades near rapid streams. Adults eat little, while larvae feed on foliage of streamside trees and shrubs, especially willow. A number of species and genera have been described from
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