Ancyronyx Jaechi
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Ancyronyx Jaechi
''Ancyronyx jaechi'' is a species of riffle beetle found in Sri Lanka. Description The species is typically 2.1 to 2.6 mm long. It has an elongated body with yellow-brown patterning. References Elmidae Insects of Sri Lanka Insects described in 2012 {{Elmidae-stub ...
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Elmidae
Elmidae, commonly known as riffle beetles, is a family (biology), family of beetles in the superfamily Byrrhoidea described by John Curtis (entomologist), John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fast-flowing shallow areas of streams, such as Riffle, riffles, feeding on algae and biofilms. There are more than 150 genera and 1,500 described species in Elmidae. The oldest record of the group is ''Cretohypsilara'' from the Cenomanian aged Burmese amber. See also * List of Elmidae genera References Further reading * * * * * External links

* Elmidae, Polyphaga families {{Elmidae-stub ...
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Insects Of Sri Lanka
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ...
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