Synonyms and other taxonomic changes
Rheumaptera Hübner, 1822
Coryphista Hulst, 1896
Eutriphosa Gumppenberg, 1887
Hydria Hübner, 1822
prunivorata and undulata were formerly placed in genus Hydria
meadii was formerly placed in the genus Coryphista
Numbers
4 species in North America listed at
All-Leps:
hastata, prunivorata, subhastata, undulata
5 species in North America (2023):
meadii (1)Size
wingspan 26-32, based on several Internet photos
Identification
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).
Range
all of Canada and most of United States
Remarks
Images of
Rheumaptera hastata or
Rheumaptera subhastata without evidence of dissection, DNA testing or expert identification should be placed in
Rheumaptera hastata or subhastata.
Images of
Rheumaptera prunivorata or
Rheumaptera undulata without evidence of dissection, DNA testing or expert identification should be placed in
Rheumaptera prunivorata or undulata.
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)