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Pachycerus
''Pachycerus'' is a genus of "true weevils", family Curculionidae, confined to the Palaearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ... and African regions. Description The genus includes moderately-sized weevils (6–12 mm). Partial species list * '' Pachycerus borrae'' F. Solari 1950 * '' Pachycerus cordiger'' (Germar 1818) * '' Pachycerus sellatus'' Faust 1904 * '' Pachycerus somaliensis'' Meregalli, 2002 References Lixinae Curculionidae genera Taxa named by Carl Johan Schönherr {{Curculionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachycerus Cordiger
''Pachycerus'' is a genus of "true weevils", family Curculionidae, confined to the Palaearctic and African regions. Description The genus includes moderately-sized weevils (6–12 mm). Partial species list * ''Pachycerus borrae ''Pachycerus'' is a genus of "true weevils", family Curculionidae, confined to the Palaearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, i ...'' F. Solari 1950 * '' Pachycerus cordiger'' (Germar 1818) * '' Pachycerus sellatus'' Faust 1904 * '' Pachycerus somaliensis'' Meregalli, 2002 References Lixinae Curculionidae genera Taxa named by Carl Johan Schönherr {{Curculionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lixinae
Lixinae is a subfamily of true weevils, included in the Molytinae in many older treatments. They are mainly root feeders, although some develop in flower buds or stems. Several species are used in biological control of invasive weeds, namely knapweeds (''Centaurea''). Characteristics include tarsal claws that are fused at the base, and labial palps are short and telescoping. The body is elongate shape, as for some other weevils. Each tibia bears an uncus (small hook) on its distal end. The rostrum is forwardly directed. Genesis Bearing in mind modern geographical distribution of Lixinae and its feeding links, it is considered to be that this subfamily appeared in Euroasian lands, when the area of Tethys Ocean demenished. Probably, lixine weevils formed as group in the arid conditions of the deserts of Ancient Mediterranean. From here pra-lixine spread out the over dryland. Taxonomy There are three tribes. The largest of these by far are the Cleonini, sometimes ranked a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Johan Schönherr
Carl Johan Schönherr (10 June 1772 – 28 March 1848) was a Swedish people, Swedish entomologist who revised the Taxonomy (biology), taxonomy of beetles, including weevils by examining all the descriptions of beetles since the time of Linnaeus. He began with an examination of the Charles De Geer, Charles de Geer collection which had been handed to the Swedish Academy of Sciences in 1778. He introduced the system of using a red label to mark historical specimens that had served as the basis of De Geer's descriptions. This continues to be a standard practice in entomological collections today for Holotype, holotypes. Life and work Born in Stockholm, Schönherr was son of a German immigrant who had established himself as a silk manufacturer. At the age of nineteen, he took over the business together with his mother and developed it into a considerable size, with about 200 workers. Schönherr had taken an interest in entomology, a contemporary trend inspired by Emanuel Swedenborg, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curculionidae
The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families with 6,800 genera and 83,000 species described worldwide. They are the sister group to the family Brentidae. They include the bark beetles as the subfamily Scolytinae, which are modified in shape in accordance with their wood-boring lifestyle. They do not much resemble other weevils, so they were traditionally considered a distinct family, Scolytidae. The family also includes the ambrosia beetles, of which the present-day subfamily Platypodinae was formerly considered the distinct family Platypodidae. Description Adult Curculionidae can be recognised by the well-developed, downwards-curved snout (Rostrum (anatomy), rostrum) possessed by many species, though the rostrum is sometimes short (e.g. Entiminae). They have elbowed Antenna (biology), antennae that end in clubs, and the first antennal segment often fits into a groove in the side of the rost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaearctic
The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Mediterranean Basin; North Africa; North Arabia; Western, Central and East Asia. The Palaearctic realm also has numerous rivers and lakes, forming several freshwater ecoregions. Both the eastern and westernmost extremes of the Paleartic span into the Western Hemisphere, including Cape Dezhnyov in Chukotka Autonomous Okrug to the east and Iceland to the west. The term was first used in the 19th century, and is still in use as the basis for zoogeographic classification. History In an 1858 paper for the ''Proceedings of the Linnean Society'', British zoologist Philip Sclater first identified six terrestrial zoogeographic realms of the world: Palaearctic, Aethiopian/ Afrotropic, Indian/ Ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curculionidae Genera
The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families with 6,800 genera and 83,000 species described worldwide. They are the sister group to the family Brentidae. They include the bark beetles as the subfamily Scolytinae, which are modified in shape in accordance with their wood-boring lifestyle. They do not much resemble other weevils, so they were traditionally considered a distinct family, Scolytidae. The family also includes the ambrosia beetles, of which the present-day subfamily Platypodinae was formerly considered the distinct family Platypodidae. Description Adult Curculionidae can be recognised by the well-developed, downwards-curved snout (rostrum) possessed by many species, though the rostrum is sometimes short (e.g. Entiminae). They have elbowed antennae that end in clubs, and the first antennal segment often fits into a groove in the side of the rostrum. The body tends to be robust, con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
