Profenusa

	Profenusa ''Profenusa'' is a genus of sawflies belonging to the family Tenthredinidae. Species: * '' Profenusa pygmaea'' * '' Profenusa thomsoni'' References {{Taxonbar, from=Q15715082 Tenthredinidae Sawfly genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Profenusa Thomsoni ''Profenusa thomsoni'', the amber-marked birch leaf miner, is a species of sawfly in the family Tenthredinidae. It is native to the Palearctic realm but has spread to North America. The larvae feed on the foliage of birch trees. Description The adult ''Profenusa thomsoni'' is black and about in length and fly-like in appearance. The whitish larva has short legs, dark markings on the first segment of the thorax, and two black spots on each of the second and third segments. It develops inside a leaf blade, the egg usually being laid close to the midrib and the larva hollowing out a "blotch"-shaped cavity. There are six instars, the last stage taking place on the ground as the larva searches out a place to pupate. A very similar sawfly, '' Fenusa pumila'', also mines birch leaves, but tends to infest young, expanding leaves, and causes crinkling of the leaf blade, whereas ''P. thomsoni'' infests mature leaves which remain undistorted. Distribution and habitat ''Profenusa thomson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Profenusa Pygmaea ''Profenusa pygmaea '' is a Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ... species of sawfly.Benson, R.B., 1952. '' Handbooks for the Identification of British Insects''. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London References External linksThe sawflies (Symphyta) of Britain and Ireland {{Taxonbar, from=Q14582644 Hymenoptera of Europe Tenthredinidae Insects described in 1816 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Tenthredinidae 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 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Sawflies Sawflies are the insects of the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay their eggs. The name is associated especially with the Tenthredinoidea, by far the largest superfamily in the suborder, with about 7,000 known species; in the entire suborder, there are 8,000 described species in more than 800 genera. Symphyta is paraphyletic, consisting of several basal groups within the order Hymenoptera, each one rooted inside the previous group, ending with the Apocrita which are not sawflies. The primary distinction between sawflies and the Apocrita – the ants, bees, and wasps – is that the adults lack a "wasp waist", and instead have a broad connection between the abdomen and the thorax. Some sawflies are Batesian mimics of wasps and bees, and the ovipositor can be mistaken for a stinger. Sawflies vary in leng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]