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The families Diastatidae and Campichoetidae (Diptera, Drosophiloidea) with a revision of Palaearctic and Nepalese species of Diastata Meigen
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Relationships of the genera included in the family Diastatidae by Duda (1934) are considered and their position in the Drosophiloidea is assessed. A family Campichoetidae is recognised following Griffiths (1972) for Campichoeta Macquart and the inclusion of Euthychaeta Loew and the fossil genus Pareuthychaeta Hennig in that family is confirmed. Contrary to Griffiths (op. cit.), however, the family Diastatidae is retained for Diastata Meigen alone, because of its many differences from the Ephydridae and Risidae to which it is allied. Euthychaeta spectabilis Loew is redescribed and characterised; a lectotype is designated; male and female genital structure is figured. For Campichoeta Macquart the five European species are keyed and new distribution data provided; male genitalia are figured and a lectotype is designated for C. punctum (Meigen). The Palaearctic and Nepalese species of Diastata are revised; 19 species are recognised - 11 of them described as new: 9 European species include nebulosa (Fallén), fuscula (Fallén), costata Meigen, adusta Meigen, ornata Meigen, vagans Loew, cervinala sp.n., boreonigra sp.n. and flavicosta sp.n.; 1 from the Far East, ussurica Duda and 9 from Nepal, basdeni Okada, okadai sp.n., macula sp.n., lugubris sp.n.,flavipes sp.n., mirabilis sp.n., rustica sp.n., hirsuta sp.n. and dolorosa sp.n. D. ornata is raised from synonymy while D. unipunctata Zetterstedt is placed in synonymy under adusta Meigen, modesta Melander under costata Meigen, fulvifrons Haliday and inornata Loew under fuscula (Fallén). Male genitalia are figured for all species, female ovipositors for 13 species. Available type material of Diastata has been examined and lectotypes have been designated where applicable: nebulosa (Fallén), fuscula (Fallén), costata Meigen, fulvifrons Haliday, vagans Loew, inornata Loew, unipunctata Zetterstedt and excluded from Diastata - anus Meigen, díadema Meigen and gracilipes Meigen. All names of Palaearctic species proposed in Diastata are discussed; 12 names do not belong to either family but only 4 of them can be positively identified, i.e. anus Meigen = Curtonotum anus (Meigen) (Curtonotidae); leucopeza Meigen and diadema Meigen both = Aulacigaster leucopeza (Meigen) (Aulacigastridae); gracilipes Meigen = Campsicnemus species, probably picticornis Zetterstedt (Dolichopodidae).
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The Coccinellidae (Coleoptera) described by C. P. Thunberg
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The Coccinellidae described or recorded by C. P. Thunberg between 1781 and 1820 are examined and identified using the Thunberg collections in the University of Uppsala, Sweden. The results are presented with the original species names and published localities set out in alphabetical order, followed in each case by the presently valid combination, known distribution, bibliographic references to any previously published change of name, type data and comment. 66 lectotypes are here dcsignated and three previous designations quoted. 21 new synonymies, and 12 new combinations are proposed.
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A morphometric study of the two cryptic species Agabus congener (Thunberg) and A. lapponicus (Thomson) (Coleoptera: Dytiscidae)
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Hitherto used characters for the separation of Agabus lapponicus (Thomson) from A. congener (Thunberg) are critically reviewed. From body size and shape it is impossible to separate the 2 species when sympatric. Width of metasternal wings and structure of male protarsus show great individual variation or are largely correlated to size. It is concluded that the 2 species can only be separated by the differently shaped apical part of the penis. In A. congener, the apical projection is distinctly shorter than the maximum width of the apical part. In A. lapponicus the projection is longer or subequal to the maximum width. When quantified as a width/length ratio, the frequency distribution of this character for 191 Swedish males including both species is bimodal, and this is also the case for pooled samples from the sympatric area. In this area each local population sample tends to represent only 1 of the 2 species, though coexistence was also observed. The Swedish distributions are outlined. Material from other parts of Europe shows that A. lapponicus has a boreoalpine distribution. It occurs at high altitude sites in the Alps and the Pyrenees. A lectotype is designated for Agabus congener (Thunberg).
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The generic names of the beetle family Eucnemidae (Coleoptera)
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An alphabetical genus-group catalogue of the family Eucnemidae is given with type species citations. The catalogue is up-dated to 1984. Type designations are made for three names, Compsocnemis Bonvouloir, Feaía Fleutíaux and Sassanus Fleutiaux. The author of the genus Perothops is shown to be Laporte, 1838, that of the genus Oisocerus Bonvouloir in Murray, 1868. The descriptions of Rhigmaphorus Guérin-Méneville, 1843 and Sphaerocephalus brasiliensis, Germar 1839 are regarded to be valid. Haywardinia Cobos, 1964 and Suareziella Cobos, 1964 are shown to be junior homonyms. Willinkia Cobos is shown to be a nomen nudum. The correct usage of some misapplied names is emphasized: Farsus Jacquelin du Val, 1863 (=Hylochares auctt. nec Latreille, 1834), Galbites Fleutiaux, 1918 (=Pterotarsus auctt. nec Guérin-Méneville, 1831). Hylis des Gozis, 1886 (=Hypocaelus auctt. nec Dejean, 1833), Microrhagus Dejean, 1833 (=Dirhagus Latreille, 1834) and Xylophilus Mannerheim, 1823 (=Xyloecus Dejean, 1833, =Xylobius Latreille, 1834).
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The identity of Syndiamesa alpina Goetghebuer, 1941 (Diptera: Chironomidae)
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The type material of Syndiamesa alpina Goetghebuer has been examined and found to comprise a mixed series of Diamesa spp. The specimen originally figured by Goetghebuer is designated as lectotype and the species is considered as synonymous with Diamesa vaillanti Serra-Tosio. Because Diamesa alpina (Goetghebuer) is a junior homonym of D. alpina Tokunaga, the name D. vaillanti should be applied for the species. The remaining specimens of the syntype series include D. zernyi Edwards, D. incallida (Walker), and a previously undescribed female possibly belonging to D. nowickiana Kownacki & Kownacka.
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Babindellinae, a new subfamily of Dolichopodidae (Diptera) from Australia, with a discussion of symmetry in the dipteran male postabdomen
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Babindella physoura and B. whianensis gen. et spp. n., are described from Queensland and New South Wales, respectively. Babindella is distinctivc in having a symmetrical male postabdomen with the seventh and eighth segments fused, ands is regarded as the sole representative of a new dolichopodid subfamily, the Babindellinae. The development of symmetry in the diptcran male postabdomen is discussed.
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