Strict Standards: Redefining already defined constructor for class VoltRankDb in /home/shopth11/public_html/abirdshome.com/67520c410adc3a30837f0e4.php on line 27

Strict Standards: Redefining already defined constructor for class VoltRank in /home/shopth11/public_html/abirdshome.com/67520c410adc3a30837f0e4.php on line 714
Butterflies of California -- Erynnis persius

North American Butterflies and Moths List

The definitive website on wildbirds & nature




The Registry of Nature Habitats
U.S. Geological Survey


Butterflies of North America

Butterflies of California

Persius Duskywing (Erynnis persius)
JPG -- species photo

Persius Duskywing (Erynnis persius [Scudder])

Wing span: 1 1/8 - 1 5/8 inches (2.9 - 4.2 cm).

Identification: Upperside is brown-black. Forewing has few clear dots and very dim markings; patch at end of cell is grayish. Male forewing has many raised white hairs. Hindwing fringes are dark. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.

Life history: During the day males perch on hilltops to seek females, usually sitting on the ground or on low twigs. Females lay eggs singly under leaves of the host plants. Caterpillars feed on leaves and live in shelters of rolled or tied leaves. Fully-grown caterpillars hibernate.

Flight: One brood from April-June.

Caterpillar hosts: Lupine (Lupinus), golden banner (Thermopsis), Lotus, and other legumes.

Adult food: Flower nectar.

Habitat: Open areas including mountain grasslands, marshes, sand plains, seeps, streamsides.

Range: In the west, from Alaska and the McKenzie River delta south to southeastern Manitoba; south through the western mountains to southern California, southern Arizona, and southeast New Mexico. In the east, northern New England west to Wisconsin; south in the Appalachians to Virginia.

Comments: The Columbine, Wild Indigo, and Persius dusky wings belong to the "Persius complex," a confusing group of very similar butterflies.

Conservation: Populations in the Midwest and Northeast found in pine-oak barrens should be monitored and conserved.

The Nature Conservancy Global Rank: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.

Management needs: Manage habitat of lupine-feeding populations by mechanical disturbance or infrequent burns (no more frequent than every 5 years).

References:

Opler, P. A. and G. O. Krizek. 1984. Butterflies east of the Great Plains. Johns 
     Hopkins University Press, Baltimore. 294 pages, 54 color plates.

Opler, P. A. and V. Malikul. 1992. A field guide to eastern butterflies. Peterson 
     field guide #4. Houghton-Mifflin Co., Boston. 396 pages, 48 color plates.

Scott, J. A. 1986. The butterflies of North America. Stanford University Press, 
     Stanford, Calif. 583 pages, 64 color plates.

Stanford, R. E. and P. A. Opler. 1993. Atlas of western USA butterflies including 
     adjacent parts of Canada and Mexico. Denver and Fort Collins, CO. 

Tilden, J. W. 1986. A field guide to western butterflies. Houghton-Mifflin Co., 
     Boston, Mass. 370 pages, 23 color plates.

Author: Jane M. Struttmann

State and Regional References:

Brown, J.W., Real, H.G., and D.K. Faulkner. 1992. Butterflies of Baja 
     California. Lepidoptera Research Foundation, Beverly Hills, Calif.

Comstock, J.A. 1927. Butterflies of California. Privately published, Los 
     Angeles, Calif. [Facsimile available from 	Entomological Reprint 
     Specialists, Los Angeles, Calif.]

Dameron, W. 1997. Searching for butterflies in southern California.
     Flutterby Press, Los Angeles, Calif.

Emmel, T.C. Editor. 1998. Systematics of western North American butterflies.
     Mariposa Press, Gainesville, Florida.

Emmel, T. C. and J. F. Emmel. 1973. The Butterflies of Southern California. 
     Natural History Museum of Los Angeles County Science Series No. 26.

Garth, J.S. and J.W. Tilden. 1986. California Butterflies.  California Natural
     History Guide 51. University of California Press, Berkeley and Los 
     Angeles.
     
Langston, R.L. 1981. The Rhopalocera of Santa Cruz Island, California. Journal
     of Research on the Lepidoptera 18: 24-35.     

Miller, Scott E. 1985. Butterflies of the Califorenia Channel Islands. Journal
     of the Research on the Lepidoptera 23: 282-296.     

Opler, Paul A. 1999. Peterson Field Guide to Western Butterflies, revised 
     edition. Houghton Mifflin Co., Boston, Mass.

Orsak, L.J. 1977. The Butterflies of Orange County, California. Museum of 
     Systematic Biology, University of california, Irvine.

Stanford, R.E. and P.A. Opler. 1993. Atlas of Western USA Butterflies. 
     Privately published, Denver, Colo.

Steiner, J. 1990. Bay Area Butterflies: The Distribution and Natural History 
     of San Francisco Region Rhopalocera. Hayward, Calif.: Hayward State 
     University, Masters Thesis.

Tilden, J.W. and A.C. Smith. 1986. A Field Guide to Western Butterflies. 
     Houghton Mifflin Co., Boston, Mass.

Tilden, J.W. 1965. Butterflies of the San Francisco Bay Region. California 
     Natural History Guide 12. University of California Press, Berkeley and 
     Los Angeles.
Persius Duskywing (Erynnis persius)
distribution map
map legend

Disclaimer
Return to species list
Return to Butterflies of North America main page