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Species Digrammia excurvata - Hodges#6363

Representative Images

Orillia Angle - Digrammia excurvata digrammia - Digrammia excurvata Moth - Digrammia excurvata Digrammia - Digrammia excurvata Digrammia cf. excurvata - Digrammia excurvata Geometer moth - Digrammia excurvata - Digrammia excurvata Geometer moth - Digrammia excurvata - Digrammia excurvata Geometrid Moth - Digrammia excurvata
Show images of: caterpillars · adults · both

Classification

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 Ennominae
Tribe Macariini
Genus Digrammia
Species excurvata (Digrammia excurvata - Hodges#6363)

Hodges Number

6363

Synonyms and other taxonomic changes

Digrammia excurvata (Packard, 1874)
Phasiane excurvata Packard, 1874
Semiothisa excurvata
Sciagraphia spodopterata Hulst, 1898
* phylogenetic sequence #188925

Size

Wingspan about 30-31 mm.

Identification

Adult - similar to Curve-lined Angle (Digrammia continuata) but occurs farther west and usually has a straighter PM line on forewing.

Range

California east to Texas and Oklahoma, north to Colorado and Washington.

Season

Adults fly from March to September in California.

Food

Larvae feed on California Juniper (Juniperus californica) and presumably other species of juniper in the northern and eastern parts of its range where J. californica is not present.

Remarks

This species forms a complex with D. continuata and D. setonana and adults are best identified by dissection.(1)

See Also

D. continuata is similar but apparently doesn't occur west of Texas. Also similar to other Digrammia species such as atrofasciata (which occurs in Texas and Oklahoma) and pallorata (described in 2008 by Ferguson, and has a wavier PM line); compare images of these and other related species by Jim Vargo at MPG.

Print References

Ferguson, D.C. 2008. Moths of America North of Mexico, Fascicle 17.2: p.268; pl.7.1-4

Internet References

Moth Photographers Group
Moths of Southeastern Arizona

Works Cited

1.Moths of Western North America
Powell and Opler. 2009. UC Press.
Contributed by Robin McLeod on 25 October, 2009 - 7:33pm
Additional contributions by Randy Hardy
Last updated 18 September, 2017 - 1:58pm

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