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Pangonius pyritosus (Loew, 1859) | ||
| Familia | Tabanidae | |
| Ordo | Diptera | |
| Classis | Insecta | |
| Typus | Arthropoda | |
| Summary | It is a steppic species of the Pontic type of distribution. From the steppes of Ukraine it reaches Poland along the Bug River where it has been found at two localities: in Uhrusk near Chełm and between Gródek and Czumów in the environs of Hrubieszów. These are marginal localities, situated at a distance of about 100 km from the nearest known locations in the vicinity of Lvov. In the environs of Hrubieszów it occurs on loess escarpments, situated on the edge of the Bug River valley, overgrown by xerothermic grasslands Festuca sulcata-Koeleria gracilis and Thalictro-Salvietum. The principal threat to this species is posed by anthropogenic changes in xerothermic habitats, leading to the degradation of grasslands, and natural successional changes which affect most xerothermic biotopes in our country. Pangonius pyritosus does not need legal protection as a species. | |
| Literature | Boszko G.W. 1973. Gedzi. Diptera, Tabanidae. W: Fauna Ukrajni. Kijv 13, 4: 1-208.  Kuntze R., Noskiewicz J. 1938. Zarys zoogeografii polskiego Podola. Pr. Nauk. Wyd. TN, Dz. II, Lwów 4, 538 ss. Trojan P. 1979. Tabanidae - ślepaki (Insecta: Diptera). W: Fauna Polski, t. 8. PWN, Warszawa, 309 ss. | |
| Author | Andrzej Palaczyk | |
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