XX…………………………………… ARTÍCULO: Opiliones (Arachnida) from the Southern Dobrudzha (NE Bulgaria) and its adjacent regions Plamen G. Mitov ARTÍCULO: Opiliones (Arachnida) from the Southern Dobrudzha (NE Bulgaria) and its adjacent regions Plamen G. Mitov Abstract The opilionid fauna of Dobrudzha is not well studied, and Northern and Southern Department of Zoology and Dobrudzha have not been studied equally. For example, only 15 species have Anthropology, Faculty of Biology, been reported from Northern Dobrudzha, while from Southern Dobrudzha they University of Sofia, 8 Dragan are three times less. As a result of this study and the summarized data from Zankov Blvd., 1164 Sofia, Bulgaria. literature, 17 harvestmen species (about 28% of the Bulgarian harvestmen e-mail:
[email protected] fauna) were found in the area of Southern Dobrudzha. Twelve of them (Nemas- toma bidentatum sparsum, Carinostoma elegans, Mitostoma gracile, Trogulus tricarinatus, T. closanicus, Dicranolasma giljarovi, Phalangium opilio, Zachaeus cf. anatolicus, Egaenus convexus, Lacinius horridus, Odiellus lendli, Astrobunus laevipes) are new for the Southern Dobrudzha. From the territory of its adjacent regions 18 opilionid species were recorded, four of them (Trogulus closanicus, Dicranolasma thracium, Rilaena buresi, Eudasylobus beschkovi) being new to these regions. Notes on expected species, endemism and conservation status of Revista Ibérica de Aracnología the recorded harvestmen species are given. The similarity of the harvestmen ISSN: 1576 - 9518. faunas of Northern and Southern Dobrudzha, its adjacent regions, and the Sofia Dep. Legal: Z-2656-2000. Kettle is illustrated by a dendrogram of faunistic data from the investigated re- Vol. 15, 30-VI-2007 gions. Sección: Artículos y Notas. Key words: Opiliones, harvestmen, new faunistic records, Bulgaria, Dobrudzha.