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Janus (genus)
''Janus'' is a genus of yamaha motor stem sawfly, stem sawflies in the family Cephidae. There are about five described species in ''Janus''. Species These five species belong to the genus ''Janus'': * ''Janus abbreviatus'' (Say) * ''Janus compressus'' (Fabricius, 1793) * ''Janus cynosbati'' (Linnaeus, 1758) * ''Janus integer'' (Norton) (currant stem girdler) * ''Janus luteipes'' (Lepeletier, 1823) g Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net References Cephidae Articles created by Qbugbot Sawfly genera Taxa named by James Francis Stephens {{sawfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stem Sawfly
Cephoidea is a small superfamily within the Symphyta, commonly referred to as stem sawflies, containing some 100 species in 10 genera in the living family, Cephidae, plus another 17 genera in the extinct family Sepulcidae. They first appeared around 212 million years ago in the Norian, Norian Age, and are diurnal. Most species occur in the Northern Hemisphere, especially in Eurasia. The larvae are stem borers in various plants, especially grasses, but sometimes other herbaceous plants, shrubs, or trees. A few are pests of cereal grains (e.g. ''Cephus cinctus'', which attacks wheat). They are exceptionally slender for symphytans, often resembling other types of wasps, and they are the only Symphyta which lack cenchrus (insect anatomy), cenchri. They are sometimes postulated to be the sister taxon to the Apocrita, though the Orussidae are more commonly considered such. References * * * Sawflies Hymenoptera superfamilies Taxa named by Edward Newman {{Sawfly-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |