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Alysson ratzeburgi Dahlbom, 1843 | ||
| Familia | Sphecidae | |
| Ordo | Hymenoptera | |
| Classis | Insecta | |
| Typus | Arthropoda | |
| Summary | It is a psammophilous species, with insular occurrence in Europe and Asia, preferring dry, warm and sunlit biotopes. In most part of its range rare and declining; only in northern and central Sweden it is a common species. In Poland Alysson ratzerburgi is now extremely scarce; for several decades not confirmed, so it is not unlikely that it has already become extinct in the country. Its regress is attributed to anthropogenic changes in the environment, principally to pollution and destruction of preferred biotopes, afforestation of sandy areas etc. Conservation efforts should focus on the maintenance of open, sandy, and poorly vegetated areas. The species is not protected by law. | |
| Literature | Brischke C.G.A. 1888. Hymenoptera aculeata der Provinz West- und Ostpreussen. Schrft. d. Naturf. Ges. Danzig - N.F. 7: 85-107.  Dollfuss H. 1991. Bestimmungsschlüssel der Grabwespen Nord- und Zentraleuropas (Hymenoptera, Sphecidae) mit speziellen Angaben zur Grabwespenfauna Österreichs. Stapfia, Linz, 24, 247 ss. Lomholdt O. 1975-1976. The Sphecidae (Hymenoptera) of Fennoscandia and Denmark. Fauna Entomologica Scandinavica (Klampenbork) 4, 1-2, 1-452. Negrisolo E. 1995. Hymenoptera Shecidae. In: Checklist delle specie della fauna italiana. A. Minelli, S. Ruffo & S. La Posta (eds.). Calderini, Bologna 105: 1-12. Oehlke J. 1970. Beiträge zur Insekten-Fauna der DDR: Hymenoptera - Sphecidae. Beitr. Ent. (Berlin) 20 (7/8): 615-812. Puławski W. 1978. Sphecoidea, Sphecidae - rojuszczije osy. In: Opredelitel nasekomych ewropejskoj czasti SSSR. G.S. Medvedev (ed.). Leningrad, III (1): 173-279. Shlyakhtenok A.S., Skibińska E. 2002. Contribution to the knowledge of Aculeate Hymenoptera of Byelorus. Family Digger Wasps (Sphecidae). Vestnik Zoologii, 36(2): 31-40. Szulczewski J.W. 1950. Błonkówki (Hymenoptera) Wielkopolskiego Parku Narodowego. Część IV. Żądłówki (Aculeata, Chrysididae, S apygidae, Mutilidae, Scoliidae, Vespidae, Psammocharidae, Sphegidae). Prace Monograficzne nad Przyrodą Wielkopolskiego Parku Narodowego pod Poznaniem. P Zavadil V., Šnoflak J. 1948. Kutilky (Sphecidae) Československé republiky. Entom. listy (Brno) suppl. 13: 178 pp. | |
| Author | Ewa Skibińska | |
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