Preimaginal Stages of the Emerald Ash Borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae): An Invasive Pest on Ash Trees (Fraxinus)

This study provides the most detailed description of the immature stages of Agrilus planipennis Fairmaire to date and illustrates suites of larval characters useful in distinguishing among Agrilus Curtis species and instars. Immature stages of eight species of Agrilus were examined and imaged using...

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Bibliographic Details
Published in:PloS one 2012-03, Vol.7 (3), p.e33185-e33185
Main Authors: Chamorro, M. Lourdes, Volkovitsh, Mark G, Poland, Therese M, Haack, Robert A, Lingafelter, Steven W, Palli, Subba Reddy
Format: Article
Language:English
Subjects:
abdomen
Agriculture
Agrilinae
Agrilus
Agrilus planipennis
Animals
Beryl
Biology
Buprestidae
Buprestis
Coleoptera
Coleoptera - anatomy & histology
Coleoptera - classification
Coleoptera - growth & development
Coleoptera - pathogenicity
eggs
Electron microscopy
Fagales
Female
Fraxinus
Fraxinus - parasitology
immatures
Insects
Instars
Invasive plants
Laboratories
Larva - anatomy & histology
Larva - growth & development
Larvae
Male
Microscopy, Electron, Scanning
Morphology
Mouthparts
Ovum - cytology
Ovum - growth & development
pests
Plant Diseases - parasitology
Prothorax
Pupa
Pupa - anatomy & histology
Pupa - growth & development
Pupae
Scanning electron microscopy
Species Specificity
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Description
Summary:This study provides the most detailed description of the immature stages of Agrilus planipennis Fairmaire to date and illustrates suites of larval characters useful in distinguishing among Agrilus Curtis species and instars. Immature stages of eight species of Agrilus were examined and imaged using light and scanning electron microscopy. For A. planipennis all preimaginal stages (egg, instars I-IV, prepupa and pupa) were described. A combination of 14 character states were identified that serve to identify larvae of A. planipennis . Our results support the segregation of Agrilus larvae into two informal assemblages based on characters of the mouthparts, prothorax, and abdomen: the A. viridis and A. ater assemblages, with A. planipennis being more similar to the former. Additional evidence is provided in favor of excluding A. planipennis from the subgenus Uragrilus .
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0033185