Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
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Upcoming Events

Discussion of 2018 gathering

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Genus Balsa

Many-dotted Appleworm - Balsa malana Illinois  Data Point - Balsa labecula 9664 White-blotched Balsa  - Balsa labecula Three-lined Balsa - Balsa tristrigella Balsa labecula Balsa malana Balsa labecula White-blotched Balsa - Balsa labecula
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Balsinae
Genus Balsa
3 species in North America (
3 species in Canada
wingspan about 25-30 mm
forewing light to medium brown with dark longitudinal lines on the distal half (in two species) and 2 or 3 thicker oblique lines running from the costa part-way across the wing in all species
hindwing light yellowish or grayish with a thin dark terminal line
eastern North America
adults fly from May to August
larval host preferences vary by species but the list includes the leaves of apple, cherry, elm, hawthorn, pear, plum
Internet References
pinned adult images of all 3 species in North America (CBIF)