590 Tiere (Zoologie)
Refine
Document Type
Language
- English (2) (remove)
Has Fulltext
- yes (2)
Is part of the Bibliography
- no (2)
Keywords
- Holarctic (2) (remove)
The canaliculatus species group of Stenus (Nestus) is redefined. Four new Palaearctic species of the group are described and illustrated: S. (N.) alopex sp. nov. from the Putorana Highland and Taymyr Peninsula, Russia; S. (N.) canalis sp. nov. from SE Siberia and the Russian Far East; S. (N.) canosus sp. nov. from the Narat Mt Ridge, Chinese Tien Shan; S. (N.) delitor sp. nov. from C & SE Siberia. New distributional data as well as brief analyses of old records for fourteen species described earlier are provided from both Palaearctic and Nearctic material. S. (N.) milleporus Casey, 1884 (= sectilifer Casey, 1884) is revalidated as a species propria. S. (N.) sphaerops Casey, 1884 is redescribed; its aedeagus is figured for the fi rst time; the aedeagus of S. (N.) caseyi Puthz, 1972 as well as aedeagi of eight previously described Palaearctic species are illustrated anew. A key for the identification of all the known Palaearctic species of the group is given. A morphology and ecology based analysis of the main evolutionary trends within the group is provided. A lectotype is designated for S. (N.) melanopus Marsham, 1802; its Siberian and NE European records are supposed to be erroneous; the monotypic melanopus species group is erected.
The genus Rhinotorus Förster, 1869 is revised. Thirteen species are recognized including 3 species that are new to science (R. jussilai sp. nov., R. campester sp. nov., R. tarsilatus sp. nov.). Saotis brachycerus (Kasparyan & Kopelke, 2009) comb. nov. is considered to be a member of the genus Saotis. Rhinotorus similis (Brischke, 1892) is tentatively recorded from Austria and Sweden for the first time. A number of new host records are also provided: Cladius pectinicornis (Geoffroy, 1785) for R. leucostomus (Gravenhorst, 1829), Nematus lucidus (Panzer, 1801) for R. nasutus (Gravenhorst, 1829) and N. papillosus (Retzius, 1783) for R. jussilai sp. nov.