Journal of Entomological Science (2003) 38, 489-493

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Gregory S. Hodges and Michael L. Williams (2003)
Descriptions and illustrations of the first instars of Parthenolecanium corni (Bouché) and Parthenolecanium quercifex (Fitch) (Hemiptera: Coccidae)
Journal of Entomological Science 38 (4), 489-493
Abstract: Adult female specimens of Parthenolecanium corni (Bouche) and Parthenolecanium quercifex (Fitch) are often times confused for one another and misidentified. Members of the Parthenolecanium do show host-induced morphological dimorphisms, and the adult female is heavily sclerotized which can make key morphological characters obscure. Utilization of morphological characters of the first instar can help in the accuracy of the identification process. Key characters in distinguishing P. corni from P. quercifex are the absence of large (>5 µm) in the dorsal pore pattern.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Gregory S. Hodges

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Parthenolecanium corni
Parthenolecanium quercifex