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

Upcoming Events

Information, insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Species Neogalerucella calmariensis - Black-margined Loosestrife Beetle

Purple Loosestrife Beetle - Neogalerucella calmariensis Beetle - Neogalerucella calmariensis Coleoptera - Neogalerucella calmariensis Chrysomelidae - Neogalerucella calmariensis Neogalerucella  - Neogalerucella calmariensis Purple Loosestrife Beetles - Neogalerucella calmariensis - male - female Neogalerucella? - Neogalerucella calmariensis Unknown leaf beetle - Neogalerucella calmariensis
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Galerucinae (Skeletonizing Leaf Beetles and Flea Beetles)
Tribe Galerucini
No Taxon (Section Atysites)
Genus Neogalerucella (Purple Loosestrife Beetles)
Species calmariensis (Black-margined Loosestrife Beetle)
Synonyms and other taxonomic changes
=Galerucella calmariensis
Explanation of Names
Author: Linnaeus, 1767
"Light brown, usually with a black triangle or a broad, dark stripe on the thorax. The body has parallel sides, is 3-5 mm long and half as wide, and is punctuated with coarse dots and fine, dense hairs." - Cornell
Native to the entire Palaearctic Region(1); introduced since 1992 in a number of ne. and nw. US states and several areas in Canada
Very specific host, the invasive purple loosestrife, Lythrum salicaria. It is not known to feed on any native plants.
Life Cycle
Female lays 300-400 eggs per year. Pupation occurs in the soil. From egg to adult takes about 6 weeks, and the adult lives 8-10 weeks. One generation per year.
Imported from Europe as a biocontrol to combat purple loosestrife (Lythrum salicaria)
Internet References