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Species Pelochrista dorsisignatana - Triangle-backed Pelochrista - Hodges#3116

3116 Triangle-backed Eucosma  - Pelochrista dorsisignatana Moth with snout - Pelochrista dorsisignatana Eucosma similiana - Pelochrista dorsisignatana Triangle-backed Pelochrista - Hodges#3116 - Pelochrista dorsisignatana Moth - Pelochrista dorsisignatana Triangle-backed Eucosma - Pelochrista dorsisignatana Tortricidae: Pelochrista dorsisignatana - Pelochrista dorsisignatana triangle-backed pelochrista - Pelochrista dorsisignatana
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Tortricoidea (Tortricid Moths)
Family Tortricidae (Tortricid Moths)
Subfamily Olethreutinae
Tribe Eucosmini
Genus Pelochrista
Species dorsisignatana (Triangle-backed Pelochrista - Hodges#3116)
Hodges Number
Other Common Names
Triangle-backed Eucosma
Synonyms and other taxonomic changes
Pelochrista dorsisignatana (Clemens, 1860) Gilligan & Wright, 2013 (1)
Poecilochroma dorsisignatana Clemens, 1860
Eucosma dorsisignatana
Phylogenetic sequence # 095550
Explanation of Names
DORSISIGNATANA: from the Latin "dorsum" (the back) + "signum" (a mark); refers to the large dark mark on the moth's back - the "back" in this case meaning the midline where the forewings meet over the abdomen when the moth is at rest
There are more than 168 named species of Eucosma in America north of Mexico. (2)
wingspan 12-22 mm
Adult: forewing ash-gray to brown with faint whitish lines; dark brown patch on inner margin near base; larger paler brown median patch bordered by costa and PM line; markings reduced or absent in some specimens
[description by Charles Covell]
Nova Scotia to Florida, west to Texas, north to Manitoba. (3), (4) , (5)
Moth Photographers Group - large map with some distribution data.
Most records of adults are from July to November. (2)
larvae feed on roots of goldenrod (Solidago spp.)
See Also
Pelochrista similiana - dark mark in median area of forewing is connected to dark subbasal facia
Pelochrista oraria - dark mark in median area of forewing is separated from dark subbasal facia but reaches apex
(Paraphrased from Wright, 2011 (6))
Print References
Clemens, 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12:353