| Polacantha composita | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Asilidae |
| Genus: | Polacantha |
| Species: | P. composita |
| Binomial name | |
| Polacantha composita (Hine, 1918) | |
| Synonyms [1] | |
| |
Polacantha composita is a species of robber flies in the family Asilidae. [1] [2] [3] [4]
Diosgenin, a phytosteroid sapogenin, is the product of hydrolysis by acids, strong bases, or enzymes of saponins, extracted from the tubers of Dioscorea wild yam species, such as the Kokoro. It is also present in smaller amounts in a number of other species. The sugar-free (aglycone) product of such hydrolysis, diosgenin is used for the commercial synthesis of cortisone, pregnenolone, progesterone, and other steroid products.
Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus Dioscorea.
Odacantha is a genus of ground beetle native to the Palearctic and the Near East. It contains the following species:
Dioscorea composita, or barbasco, is a species of yam in the family Dioscoreaceae. It is native to Mexico. It is notable for its role in the production of diosgenin, which is a precursor for the synthesis of hormones such as progesterone. Russell Marker developed the extraction and manufacture of hormones from D. mexicana at Syntex, starting the trade of D. composita in Mexico. Marker also discovered that the composita variety had a much higher content of diosgenin than the mexicana variety, and therefore it came to replace the latter in the production of synthetic hormones.
The Ropalomeridae are a family of acalyptrate flies.
Composita is an extinct brachiopod genus that lived from the Late Devonian to the Late Permian. Composita had a cosmopolitan global distribution, having lived on every continent except Antarctica. Composita had a smooth shell with a more or less distinct fold and sulcus and a round opening for the pedicle on the pedicle valve. Composita is included in the family Athyrididae and placed in the subfamily Spirigerellinae.
Hoshihananomia is a genus of tumbling flower beetles in the family Mordellidae. There are at least 40 described species in Hoshihananomia.
Nebria composita is a species of ground beetle in the Nebriinae subfamily that can be found in Qinghai and Tibet provinces of China.
Geodia composita is a species of sponge in the family Geodiidae. The species was first described by Bösraug in 1913. It is found off the coasts of Mozambique.
Persectania aversa, commonly known as the southern armyworm, is a moth of the family Noctuidae. It was first described in 1856 by Francis Walker. It is endemic to New Zealand and can be found throughout the country including the North, South, Stewart and Chatham Islands. This species inhabits open grasslands. Larvae feed on grass species including commercial crops such as oats and barley and as a result this species is regarded as an agricultural pest. Adults are nocturnal and are attracted to light. They are on the wing throughout the year.
Sibovia is a genus of leafhoppers in the family Cicadellidae. There are at least 30 described species in Sibovia.
Libellula composita, the bleached skimmer, is a species of skimmer in the dragonfly family Libellulidae. It is found in North America.
Polacantha arcuata is a species of robber flies in the family Asilidae.
Polacantha is a genus of robber flies in the family Asilidae. There are about 10 described species in Polacantha.
Polacantha grossa is a species of robber flies in the family Asilidae.
Polacantha gracilis is a species of robber fly in the family Asilidae.
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