S. Mahunka szerk.: Folia Entomologica Hungarica 48. (Budapest, 1987)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK XLVIII 1987 p. 153-160 On the identity of Sapromyza setiventris Zett. (Diptera: Lauxaniidae) with description of a new species By L. PAPP (Received January 12, 1987) Abstract: On the identity of Sapromyza setiventris Zett. (Diptera: Lauxaniidae) with description of a new species. - A lectotype is designated for a misinterpreted species, Sapromyza setiventris Zetterstedt, 1847. Sapromyza schnabli sp. n. is described from Hungary and some relationships of the S. apicalis species-group are discussed. With 10 figures. A modern revision of the Palaearctic species of the family Lauxaniidae was commenced in 1978. The majority of the species published in the new Catalogue of Palaearctic Diptera (PAPP 1984 b) has been revised by way of studies on their type-specimens. However, several species in the genera Minettia, Calliopum and Sapromyza were not revised by that time, among them S. (Sap romyza) setiventris Zetterstedt, 1847. This species was keyed in BECKER'

s (1895) revisionary work but by using it one can misidentify this biological species as a species belonging to at least three different modern genera. To illustrate his uncertainty about this species it is sufficient to say that he compared it descriptively to a species of Minettia (

M. tubifer Meig.) and to a species of Lyciella ("S. difformis", i.e. now L. platycephala Loew). BECKER reported S. setiventris from Scandinavia, Poland and Germany. Similarly, through the key given by CZERNY (1932) in his revision, one can identify several biological species as "S. setiventris". CZERNY did not know well this species (along with a high number of the other species dealt with) and did not see its types. In a key for the Hungarian species of Sapromyza Papp (1979) defined a species under the name S. setiventris (depicting also its antenna, Fig. 32/B), which now proved to be a misinterpretation. For the same form PAPP (1984 a) published data of several specimens of a Sapromyza species collected by I. CEIANU in Roumania as "Sapromyza setiventris Zetterstedt, 1847" with the note that those specimens can be identified as S. obsoletoides Schnabl with the key of CZERNY (1932). These latter specimens were probably from the same collectings from which Martinék (1980) published his specimens of S. obsoletoides Schnabl. MARTINÉK'

s paper and a subsequent letter communication between us induced me to study the identity of S. setiventris by studying its types. I am greatly indebted to Dr. V. MARTINÉK (State Forestry and Game Management Research Institute, Prague) for his kind cooperation. J. SCHNABL (1876) described a new species, Sapromyza obsoletoides, from Poland. This name was listed as junior synonym of S. apicalis Loew, 1847 by BECKER (1895, 1905). CZERNY (1932), in fact, treated it as a distinct species without any reasoning and simply cited its description in his revision without having seen its types. MARTINÉK (1980) published S. obsoletoides from Roumania and Czechoslovakia. The types of Sapromyza obsoletoides seem to be lost (a letter communication with Dr. W. MIKOLAJCZYK, Warsaw in 1983), consequently, its status cannot be elucidated objectively. The name S. obsoletoides Schnabl, 1876 was included in the new Catalogue of Palaearctic Diptera (PAPP 1984 b) as a junior synonym of S. apicalis Loew, 1847. Although I think a realistic possibility even now that SCHNABL described some smaller than average specimens of S. apicalis of dull frons, it seems more reasonable to put this name into the category of "Unrecognizable species"