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For the United States & Canada
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Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

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


Genus Rheumaptera

Rheumaptera? - Rheumaptera undulata / prunivorata species group - Rheumaptera geometrid - Rheumaptera meadii Barberry Geometer - Rheumaptera meadii Butterfly sp - Rheumaptera genitalia - Rheumaptera prunivorata - male Geometridae, Cherry Scallop Shell, larvae - Rheumaptera prunivorata Barberry Geometer - Hodges#7290 - Rheumaptera meadii
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Larentiinae
Tribe Hydriomenini
Genus Rheumaptera
Synonyms and other taxonomic changes
prunivorata and undulata were formerly placed in genus Hydria
4 species in North America listed at All-Leps: hastata, prunivorata, subhastata, undulata
wingspan 26-32, based on several Internet photos
Of the 4 species in this genus, 2 are mostly black with white bands, and 2 are medium brown with many zigzag lines running across the wings. The two groups don't look at all similar, and one would never guess that both groups belonged to the same genus (see sample images of both in Internet References section below).
all of Canada and most of United States
See Also
The variation in pattern among individuals of R. hastata and R. subhastata is much greater than the variation between the two species. In these 7 photos; the first 2 are hastata, and the last 5 are subhastata. Could you tell which was which if the specimens weren't labelled? Since these two species have virtually identical geographic ranges, examination of genitalia is the only reliable way to separate the two.
Internet References
pinned adult images of 4 species (CBIF)
pinned adult images of 4 species, with collection site maps for each (All-Leps)
distribution in Canada list of provinces and territories (CBIF)