Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12


Previous events
TaxonomyBrowse
Info
ImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » Plant-parasitic Hemipterans (Sternorrhyncha) » Scales and Mealybugs (Coccoidea) » Armored Scale Insects (Diaspididae) » Fiorinia » Elongate Hemlock Scale (Fiorinia externa)

Species Fiorinia externa - Elongate Hemlock Scale

Classification · Explanation of Names · Range · Food · Remarks · Internet References · Works Cited
Elongate Hemlock Scale - Fiorinia externa elongate hemlock scale - Fiorinia externa - male - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Sternorrhyncha (Plant-parasitic Hemipterans)
Superfamily Coccoidea (Scales and Mealybugs)
Family Diaspididae (Armored Scale Insects)
Genus Fiorinia
Species externa (Elongate Hemlock Scale)
Explanation of Names
Author: Ferris 1942
Range
Believed to have been introduced into the US from Japan, this species was first found in NY in 1908 and is now found from Virginia to Massachusetts, west to Ohio.
Food
Hemlocks (Tsuga) and other conifers.
Remarks
Fiorinia externa will displace the rival scale Nuculaspis tsugue from the nitrogen-rich terminal needles of hemlock trees, relegating it to feeding on mature needles where it incurs reduced fecundity and heavy mortality.(1)
Internet References
Penn State
Works Cited
1.Insect Ecology: Behavior, Populations and Communities
P. W. Price, R. F. Denno, M. D. Eubanks. 2011. Cambridge University Press.
Contributed by Charley Eiseman on 25 February, 2011 - 5:19pm
Additional contributions by Marci Hess
Last updated 17 September, 2023 - 9:53am

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2023 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact