Moths of North Carolina
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View PDFErebidae Members: Dasychira Members: 57 NC Records

Dasychira dorsipennata (Barnes & McDunnough, 1919) - Sharp-lined Tussock Moth

Dasychira dorsipennataDasychira dorsipennataDasychira dorsipennata
Taxonomy
Superfamily:
Noctuoidea		 Family:
Erebidae		Subfamily:
Lymantriinae		Tribe:
Orgyiini		P3 Number:
930145		 MONA Number:
8293.00
Comments: One of 16 species in this genus that occur in North America, 10 of which have been recorded in North Carolina.
Identification
Field Guide Descriptions: Covell (1984)Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLDTechnical Description, Adults: Forbes (1948); Ferguson (1978)Technical Description, Immature Stages: Both Forbes (1948) and Ferguson (1978) provide keys to the larvae.                                                                                 
Adult Markings: Males are light grayish-fuscous with a greenish tint and usually only a small amount of whitish in the median area (Forbes, 1948; Ferguson, 1978, however illustrates two males with a pale area extending from the costa to the inner margin). The antemedian line is crenulated (but not dentate) and the postmedian is fairly sinuous -- convex in the upper half and concave below with no special tooth at M3 (Forbes, 1948; Ferguson, 1978, states that it is more concave than in other similar species, especially on the underside of the wings). No barred forms apparently exist in this species (Ferguson, 1978); the common name Sharp-lined Tussock Moth does not refer to the bar (which is sharply pointed only in obliquata) but rather to the sharply defined antemedian and postmedian (Covell, 1984). Females are larger than the males and similarly colored, but typically with more white in the median area.
Adult Structural Features: Dasychira species have two dorsal tufts on their abdomens, whereas Orgyia have just one. Adults lack mouthparts. Males cannot be distinguised from related species based on genitalia and females only exhibit slight differences (Ferguson, 1978).
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: Larvae are covered in gray or white hair (occasionally brown), with two black anterior hair pencils and three at the posterior end; the plumose setae composing the hair pencils have a black shaft and a dark tip. Larvae of D. tephra are similar but only have a single median hair pencil at the posterior end and the shafts of the plumose setae are yellowish instead of black (see Ferguson, 1978, and Wagner, 2005, for details).
Larvae ID Requirements: Identifiable from good quality photos, especially where associated with known host plants.
Distribution in North Carolina
Distribution: Found throughout the Mountains, including at high elevations. Also recorded disjunctly in the lower elevation but still montane-like habitats of Sauratown range of monadnocks in the western Piedmont.
County Map: Clicking on a county returns the records for the species in that county.
Dasychira dorsipennataAlamance Alexander Alleghany Anson Ashe Avery Beaufort Bertie Bladen Brunswick Buncombe Burke Cabarrus Caldwell Camden Carteret Caswell Catawba Chatham Cherokee Chowan Clay Cleveland Columbus Craven Cumberland Currituck Dare Davidson Davie Duplin Durham Edgecombe Forsyth Franklin Gaston Gates Graham Granville Greene Guilford Halifax Harnett Haywood Henderson Hertford Hoke Hyde Iredell Jackson Johnston Jones Lee Lenoir Lincoln Macon Madison Martin McDowell Mecklenburg Mitchell Montgomery Moore Nash New%20Hanover Northampton Onslow Orange Pamlico Pasquotank Pender Perquimans Person Pitt Polk Randolph Richmond Robeson Rockingham Rowan Rutherford Sampson Scotland Stanly Stokes Surry Swain Transylvania Tyrrell Union Vance Wake Warren Washington Watauga Wayne Wilkes Wilson Yadkin Yancey
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge 		Image showing flight dates by month for High Mountains greater than 4,000 feet, Low Mountains, Piedmont, and Coastal Plain: adults.
Flight Comments: Probably has a single adult flight in North Carolina.
Habitats and Life History
Habitats: Habitats in the Mountains include both riparian habitats at lower elevations and mesic slopes at high elevations.
Larval Host Plants: Larvae are polyphagous, feeding on a broad range of hardwood trees and shrubs. Ferguson (1978) reared larvae on oak, hazel, shadbush, and willow. Other hosts he mentioned from other sources include birch, poplar, beech and Chinese Elm. We do not have any feeding records in North Carolina. - View
Observation Methods: Appears to come moderately well to 15 watt UV lights. Adults do not feed, so do not come to bait or to flowers. Larvae are distinctive and should be looked for on low-growing trees and shrubs. The hair of all Lymantriinae larvae are possibly urticating, however, and should be handled with care (Ferguson, 1978).
Wikipedia
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks: G4G5 SNR [S3S4]
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments: This species has a fairly restricted range in North Carolina but ranges widely throughout the Mountains and occurs in at least one location in the western Piedmont. It does not seem to be strongly restricted by either habitat type or host plants and appears to be secure within the state.

 Photo Gallery for Dasychira dorsipennata - Sharp-lined Tussock Moth

Photos: 4
Dasychira dorsipennataRecorded by: Jim Petranka on 2024-08-22
Madison Co.
Comment: 		Dasychira dorsipennataRecorded by: Owen McConnell on 2019-07-28
Graham Co.
Comment:
Dasychira dorsipennataRecorded by: Jim Petranka and Becky Elkin on 2013-07-16
Madison Co.
Comment: 		Dasychira dorsipennataRecorded by: Jim Petranka and Becky Elkin on 2013-07-15
Madison Co.
Comment: