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Hyperoscelis eximia (Boheman, 1858) | ||
| Familia | Canthyloscelidae | |
| Ordo | Diptera | |
| Classis | Insecta | |
| Typus | Arthropoda | |
| Summary | Hyperoscelis eximia is a rare representative of the relict family, considered as an indicatory species of old natural forests. In Poland it has so far been known from the Ojców National Park, Roztocze National Park and its surroundings (Turzyniec) and from the Świętokrzyski National Park. Larvae are saproxylobiontes; they develop in wet dead wood attacked by brown rot. Preferred habitat for laying eggs is wood at the advanced stage of decay. Therefore the species finds good conditions for development in only strictly protected forest areas. The greatest threat to H. eximia and to other saproxylobiontes is the removal of dead wood from forests where its larvae develop. This activity reduces possibilities of the species development to national parks and nature reserves. To maintain H. eximia in not-protected forests, felling of dying trees should be limited and at least some dead wood should be left in forests. | |
| Literature | Haenni J.-P., Dufour C. 1983. Premiere capture en Suisse d'un représentant de la famille relique des Canthyloscelidae (Diptera, Nematocera). Bull. Soc. ent. Suisse 56: 187-189.  Klasa A. 1991. Hyperoscelis eximia (Boheman) (Diptera, Canthyloscelidae) a representantive of the new to the Polish fauna family of Nematocerous flies. Ann. Upper Silesian Mus. Entomol. 2: 217-220. Mamajev B.M., Krivosheina N.P. 1969. New data on the morphology and ecology of fem. Hyperoscelidae (Diptera, Nematocera). (In Russian). Ent. Obozr. 48, 4: 933-942. Martynovský J. 1988. Československie druhy čeledi Canthyloscelidae (Diptera - Nematocera). Zpravy čes. Spol. Ent. 24: 29-32. Mikołajczyk W. 1993. Hyperoscelis eximia (Bohem.), its new localities of Poland. Pol. Pismo entomol. 62: 289-290. Mikołajczyk W. 1995. Nowe stanowisko Hyperoscelis eximia (Bohem.) (Diptera, Canthyloscelidae) w Polsce. Wiad. entomol. 14 (4): 255. Schacht W. 1993. Fundort Schöngeising Erstnachweis einer Fliegenfamilie für Deutschland (Diptera, Canthyloscelidae). Entomofauna 14 (6): 81-84. | |
| Author | Anna Klasa | |
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