Skeletal Musculature in Larval Phases of the Beetle Epicauta Segmenta (Coleoptera, Meloidae) PDF Download
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Author: A. Berrios-Ortiz
Publisher: Springer Science & Business Media
ISBN: 9400996004
Category : Science
Languages : en
Pages : 114
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Book Description
This study, the first in an intended series of anatomical investigations of the blister beetles, was undertaken primarily for the purpose of determining the changes that occur in the skeletal musculature during postembryonic larval development. The species studied, Epicauta segmenta (Say), like others belong ing to the coleopterous family Meloidae, is characterized by hypermetamor phosis (SELANDER and WEDDLE, 1969). The egg develops into an active, well sclerotized larva that searches for grasshopper eggs, which, as in the case of all species of Epicauta, serve as the sole larval food. This triungulin phase of the larval stage, as it is called, is followed by the first grub phase (Fig. 1), during which the larva continues to feed and undergoes several molts. After feeding is completed the larva commonly enters a sessile, diapausing coarctate phase in which the integument is heavily sclerotized and the appendages, including the legs, are vestigial (Fig. 2). Following this the larva attains an active second grub phase (Fig. 3) closely resembling the first grub phase in external anatomy. Normally, the second grub phase leads directly to pupation and the formation of the adult. An alternate, abbreviated developmental pattern, involving pupation immediately after the first grub phase, is also recorded in this and many other species of Epicauta.
Author: A. Berrios-Ortiz
Publisher: Springer Science & Business Media
ISBN: 9400996004
Category : Science
Languages : en
Pages : 114
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Book Description
This study, the first in an intended series of anatomical investigations of the blister beetles, was undertaken primarily for the purpose of determining the changes that occur in the skeletal musculature during postembryonic larval development. The species studied, Epicauta segmenta (Say), like others belong ing to the coleopterous family Meloidae, is characterized by hypermetamor phosis (SELANDER and WEDDLE, 1969). The egg develops into an active, well sclerotized larva that searches for grasshopper eggs, which, as in the case of all species of Epicauta, serve as the sole larval food. This triungulin phase of the larval stage, as it is called, is followed by the first grub phase (Fig. 1), during which the larva continues to feed and undergoes several molts. After feeding is completed the larva commonly enters a sessile, diapausing coarctate phase in which the integument is heavily sclerotized and the appendages, including the legs, are vestigial (Fig. 2). Following this the larva attains an active second grub phase (Fig. 3) closely resembling the first grub phase in external anatomy. Normally, the second grub phase leads directly to pupation and the formation of the adult. An alternate, abbreviated developmental pattern, involving pupation immediately after the first grub phase, is also recorded in this and many other species of Epicauta.
Author: Erich Städler
Publisher: Springer Science & Business Media
ISBN: 9400917201
Category : Science
Languages : en
Pages : 339
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Book Description
The 9th International Symposium on Insect-Plant Relationships (SIP-9) was once more, following the tradition established in 1958, a forum for investigators in both basic and applied entomology interested in the important and fascinating field of interactions between plants and insects. We were pleased and honoured to organise this symposium, which took place June 24--30, 1995 in Gwatt on the shores of the Lake of Thun in Switzerland. 168 participants from 26 countries from all over the world actively took part in the symposium by contributing 12 key-note lectures and a total of 141 oral presentations and posters. The favourable response and the lively interaction of the participants in all symposium activities is the clearest indication of the success of SIP-9. The organisers appreciated the enthusiasm and the willingness to collaborate shown by all participants. The following volume contains written contributions (72) of only half of all presentations. This is due to the fact that we decided to produce not only an account of the proceedings but also to publish all contributions as a special volume of the journal Entomologia Experimentalis et Applicata. This procedure was last adopted in 1978 for SIP-4, organised by Reginald F. Chapman and Elizabeth A. Bernays, and ensures a wide distribution of the papers within the scientific community and easy access through libraries. Inevitably we had to employ the same review procedure as applicable for the manuscripts regularly submitted to Entomologia.
Author: H.V. Danks
Publisher: Springer Science & Business Media
ISBN: 9401718881
Category : Science
Languages : en
Pages : 383
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Book Description
Recent studies have shown that genetic polymorphisms play an important role in structuring the seasonal life cycles of insects, complementing an earlier emphasis on the effects of environmental factors. This book presents current ideas and recent research on insect life--cycle polymorphism in a series of carefully prepared chapters by international experts, covering the full breadth of the subject in order to give an up-to-date view of how life cycles are controlled and how they evolve. By consolidating our view of insect life--cycle polymorphism in this way, the book provides a staging point for further enquiries. The volume will be of interest to a wide variety of entomologists and other biologists interested in the control and evolution of life cycles and in understanding the extraordinarily complex ecological strategies of insects and other organisms.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 854
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Book Description
Author: Entomological Society of America
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 340
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Book Description
Author: Richard A.B. Leschen
Publisher: Walter de Gruyter
ISBN: 3110911213
Category : Nature
Languages : en
Pages : 800
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Book Description
Dieses Buch ist der zweite von vier Bänden der Reihe "Handbuch der Zoologie", die die Systematik, Morphologie und Biologie der Coleoptera behandeln. Die Bände beantworten alle Fragen zu Phylogenese, Evolution und Ökologie der Coleoptera. Der zweite Band umfasst die Unterordnungen Elateroidea, Bostrichiformia und Cucujiformia zum Teil. Er informiert über weltweite Verbreitung, Biologie, Morphologie aller Lebensabschnitte (einschließlich Anatomie) und Phylogenese und liefert Erläuterungen zur Taxonomie. Die morphologischen Abhandlungen sind besonders detailliert illustriert und enthalten SEM-Bilder, Zeichnungen und Habitus-Darstellungen.
Author: Stephen J. Simpson
Publisher: Springer Science & Business Media
ISBN: 9401718903
Category : Science
Languages : en
Pages : 285
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Book Description
Over the past 40 years, the SIP meetings have played a central role in the development of the field of insect-plant relationships, providing both a show-case for current research as well as a forum for the airing and development of influential new ideas. The 10th symposium, held 4-10 July 1998, in Oxford, followed that tradition. The present volume includes a representative selection of fully refereed papers from the meeting, plus a listing of the titles of all presentations. The volume includes reviews of major areas within the subject, along with detailed experimental studies. Topics covered include central neural and chemosensory bases of host plant recognition, integrative studies of insect behaviour, tritrophic interactions, plant defences, insect life histories, plant growth responses, microbial partners in insect-plant associations, and genetic bases of host plant associations. The book provides a key source for students and research workers in the field of insect-plant relationships.
Author: Jens Kvist Nielsen
Publisher: Springer Science & Business Media
ISBN: 9401727767
Category : Science
Languages : en
Pages : 257
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Book Description
The 11th International Symposium on Insect-Plant Relationships (SIP11), held on August 4-10, 2001, in Helsingør, Denmark, followed the tradition of previous SIP meetings and covered topics of different levels from chemistry, physiology, and ethology to ecology, genetics, and evolution of insect-plant relationships. The present volume includes a representative selection of fully refereed papers as well as a complete list of all the contributions which were presented at the meeting. Reviews of selected topics as well as original experimental data are included. The book provides valuable information for students and research workers interested in chemical and biological aspects of interactions between individuals and populations of different organisms.
Author: Entomological Society of Canada (1951- )
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 604
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Author: University of California
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 882
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Book Description
