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Ametropus fragilis Albarda, 1878

Familia  Ametropodidae
Ordo  Ephemeroptera
Classis  Insecta
Typus  Arthropoda
   
Summary  It is a psammophilous species, living in rivers with loose sandy bottom. Larvae of a burrower and swimmer type; they may very quickly dig themselves in sand. In Poland it is known from a few localities; recently only reported from the Bug and Narew rivers. A direct threat to the species is loss and degradation of suitable habitat, mostly as the result of hydro-engineering work (channelization) on rivers and their increasing pollution. Not protected by law. It is suggested to designate river nature reserves in places where larvae of this species still exist.
  
   
Literature  Brodskij K.A. 1930. K poznaniu Ephemeroptera juľnoj Sibiri. Rus. Ent. Obozr. 24: 31-40.

Głazaczow A. 1998. Mayflies inhabiting the sandy bottom in the rivers Bug and Narew (North East Poland). In: Advances in river bottom ecology. G. Bretschko & J. Heleąic (eds.). Backhuys Publishers, Leiden: 171-174.

Głazaczow A. 1999. Psammofilne jętki (Ephemeroptera), gin±cy element fauny polskich rzek. Roczn. nauk. Tow. Ochr. Przyr. "Salamandra" 3: 75-86.

Jażdżewska T. 1973. Notes on the biology and ecology of the mayfly Ametropus eatoni Brodskij (Ephemeroptera). Pol. Pismo entomol. 43: 469-477.

Kazlauskas R. 1962. Neue Angaben über die Eintagsfliegenfauna des Baltikums. Gidrobiol. Issledovanija 3: 147-150.

Kazlauskas R. 1968. Podenki (Ephemeroptera) reki Njamunas. Naucz. Trudy Zaved. Lit. SSR, Biologija: 197-206.

Keffermüller M. 1957a. Kilka rzadkich w Polsce gatunków jętek (Ephemeroptera). Fragm. faun. 7 (9): 253-262.

Keffermüller M. 1959. Nowe dane dotycz±ce jętek (Ephemeroptera) z rodzaju Ametropus Alb. i Behningia Lest. Pozn. Tow. Przyj. Nauk, Prace komisji biologicznej, 19(5): 1-32.

Landa V. 1969. Jepice - Ephemeroptera. Fauna ČSSR. Academia, Praha, 350 pp.

Landa V., Soldán T. 1985. Distributional patterns, chorology and origin of the Czechoslovak fauna of mayflies (Ephemeroptera). Acta ent. bohemoslov. 82: 241-268.

Landa V., Soldán T. 1989. Roząířeni řádu Ephemeroptera v ČSSR s ohledem na kvalitu vody. Academia, Praha, 172 pp.

Mikulski J.S. 1936. Fauna słodkowodna Polski. Jętki (Ephemeroptera). Wyd. Kasy Mianowskiego, Warszawa, 168 ss.

Russev B. 1968. Ökologische Untersuchungen über die Ephemeropterenlarven der Donau vor dem Bulgarischen Ufer. Limnologische Berichte der X Jubiläumstagung Donauforschung, Sofia: 295-303.

Soldán T. 1992. Jepice - Ephemeroptera. In: Red book of endangered and rare species and plants of Czechoslovakia. L. ©kapec (ed.). Príroda, Bratislava: 60-62.

Sowa R. 1975. Ecology and biogeography of mayflies (Ephemeroptera) of running waters in the Polish part of the Carpathians. 1. Distribution and quantitative analysis. Acta hydrobiol. 17(3): 223-297.

Tshernova O.A. 1937. Die Eintagsfliegen des Dnjepr-Flusses. Trudy Gidrobiol. Stants. AN USSR, 3-23.

Tshernova O.A. 1941. Fauna podenok evropejskogo severa SSSR. Zool. Żurn. 20: 213-236.

Tshernova O.A. 1952. Podenki (Ephemeroptera) bassejna reki Amur i prilezaszczich vod i ich rol v pitanii amurskich ryb. Trudy Amursk. Ichtiolog. Eksped. 1945-1949, 3: 229-360.

Tshernova O.A. 1958. Geograficzeskoje rasprostranenie podenok (Ephemeroptera) i osobennosti fauny bassejna Amura. Ent. Obozr. 37: 64-84.

Wójcik S. 1963. Fauna jętek (Ephemeroptera) Wisły pod Tczewem. Zesz. Nauk. Uniw. Pozn., Biologia, 4: 102-120.

   
Author  Małgorzata Kłonowska-Olejnik
   
 

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