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Systematic Studies in Coleoptera-Clavicornia with Special Reference to Cryptophagidae, Languriidae and Erotylidae
Başlık:
Systematic Studies in Coleoptera-Clavicornia with Special Reference to Cryptophagidae, Languriidae and Erotylidae
Yazar:
Gupta, Tapan Sen, author.
ISBN:
9780438057807
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Fiziksel Tanımlama:
1 electronic resource (380 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 76-08C.
Advisors: R. A. Crowson.
Özet:
The Clavicornia pose some of the most difficult problems in family classification in the order Coleoptera. The characterisation and constitution of the families Cryptophagidae and Languriidae have hitherto been very unsatisfactory and controversial. There has been a tendency to place all the small brown and pubescent beetles under the Cryptophagidae. Most of the nineteenth century and later taxonomists have based their classifications on very few characters. To obtain a phylogenetic classification, as many morphological and biological characters as possible should be studied, and also characters of their larvae should be accorded equal importance with those of the adults. Crowson (1955) on 'The Natural Classification of the Families of Coleoptera' provided a classification of Clavicornia which is in some respects better than those in previous works, though, as admitted by the author himself, essentially tentative and requiring much further research. Crowson's system has provided a convenient starting point for the present study. The families Cryptophagidae, Languriidae and Erotylidae have been studied in detail and compared with representative types of most of the other clavicorn families. The three families are redefined here and a revised system of subfamilies and tribes is proposed. Several new genera and the species of adults and many hitherto unknown larval types are described; keys are provided to distinguish the adults and larvae of all available genera of Cryptophagidae and Languriidae. Most of the figures were drawn from microscope slides by use of a squared eye-piece, some were drawn from whole specimens.
Notlar:
School code: 0547
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(684639.1) | 684639-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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