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A taxonomic revision of Caryocolum (Lepidoptera: Gelechiidae) Peter Huemer Tiroler Landesmuseum Ferdinandeum, Museumstrasse 15, A-6020 Innsbruck, Austria Contents Synopsis 439 Introduction 439 Material and techniques 440 Abbreviations of institutions 441 Acknowledgements 441 Check-list of Caryocolum 441 Taxa excluded from Caryocolum 443 Host-plant selection of Caryocolum species 443 The systematic position of Caryocolum 445 Classification of Caryocolum species 445 Caryocolum Gregor & Povolny, 1954 45 1 Key to the species of Caryocolum 452 Males 452 Females 455 References 518 Index to host-plants 569 Index 570 Synopsis The Holarctic genus Caryocolum Gregor & Povolny, 1954, is revised, described and redefined; a total of 63 species is currently recognized; 15 new species are described; 18 new synonymies are established; 8 species are transferred to Caryocolum and one to Ephysteris; four species are reduced to subspecific rank. Keys to the species are provided and the adults and genitalia are figured. The systematic position of Caryocolum is discussed and a provisional cladistic analysis is given, based on such structures as the apomorphic transtilla region and sclerotizations of the ductus bursae. Data on the biology, as far as known, are included and host-plant relationships within the genus are discussed. Introduction The genus Caryocolum comprises 63 species, mainly distributed in mountainous areas of the Palaearctic and to a lesser extent in the Nearctic Region. About two-thirds of the species occur in Europe; however, it is expected that some undescribed taxa from Central Asia remain to be discovered. In Austria 47-9% of the Macrolepidoptera are included in the 'Red list 7 (Gepp, 1983). Although little is known, it is suspected that the situation is even worse in Microlepidoptera, particularly because of their host specificity and strongly restricted habitats. Caryocolum species are specialized on plants of the family Caryophyllaceae. It is to be expected that much of the genus is endangered in the Alps as well as in other regions. The type-locality of C. leucothoracel- lum (Klimesch) , for example , is extremely endangered (Schramayr , 1986) and so are many other localities. Therefore this study aims to summarize todays knowledge about Caryocolum to aid effective conservation. Species of Caryocolum cannot be recognized exclusively on external characters although the white and black fore wing pattern is usually rather distinctive. Determination problems are compounded by the extraordinary individual variation and numerous geographic forms. Species have therefore often been misidentified in the past and many literature references are dubious. Bull. Br. Mus. not. Hist. (Ent.) 57 (3): 439-571 Issued 24 November 1988

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A taxonomic revision of Caryocolum (Lepidoptera: Gelechiidae)

P Huemer
Bulletin of The British Museum (Natural History) Entomology 57: 439-571 (1988)

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