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Species Details

Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

SeasonalityAdults in Alberta from late May through late August. IdentificationA small (approximately 2.5 cm wingspan) flimsy moth with a small body and broad wings. Wings light grey., slightly mottled. Basal are red brown, antemedian line prominent, black. Area between antemedian and postmedian lines rust-red, and a small red-brown patch on the costa before the apex. Hindwings light grey. The black antemedian line followed by the wide red median band should separate labradorensis from all but X. packardata McD. These two species are frequently misidentified in collections and elsewhere, and should be dissected for positive identification. In packardata the aedeagus is very slender (about 1/5 as wide as the space within the genital ring (tegument and vinculum) with a peculiar cluster of about 10 setae at the top of the aedeagus that are like cylinders with a thin seta at the tip, like dynamite with a short fuse, and the apex of the valve is flat with a small dorsal process. In labradorensis, the aedeagus is about ½ as wide as the capsule space, there is a large cluster of long tapered cornuti at the top, and the subapical process is larger and projects on the inner surface of the valve as a triangular subapical tooth (D. Lafontaine, pers. comm.).

Scientific Name Xanthorhoe labradorensis Habitat Found in open wooded areas, edges etc. Seasonality Adults in Alberta from late May through late August. Identification
A small (approximately 2.5 cm wingspan) flimsy moth with a small body and broad wings. Wings light grey., slightly mottled. Basal are red brown, antemedian line prominent, black. Area between antemedian and postmedian…
A small (approximately 2.5 cm wingspan) flimsy moth with a small body and broad wings. Wings light grey., slightly mottled. Basal are red brown, antemedian line prominent, black. Area between antemedian and postmedian lines rust-red, and a small red-brown patch on the costa before the apex. Hindwings light grey. The black antemedian line followed by the wide red median band should separate labradorensis from all but X. packardata McD. These two species are frequently misidentified in collections and elsewhere, and should be dissected for positive identification. In packardata the aedeagus is very slender (about 1/5 as wide as the space within the genital ring (tegument and vinculum) with a peculiar cluster of about 10 setae at the top of the aedeagus that are like cylinders with a thin seta at the tip, like dynamite with a short fuse, and the apex of the valve is flat with a small dorsal process. In labradorensis, the aedeagus is about ½ as wide as the capsule space, there is a large cluster of long tapered cornuti at the top, and the subapical process is larger and projects on the inner surface of the valve as a triangular subapical tooth (D. Lafontaine, pers. comm.).
Life History
There is a single annual brood, with adults in Alberta from late May through late August. Adults are nocturnal and come to light. The larvae are polyphagus with a range of mostly herbs but also some woody plants…
There is a single annual brood, with adults in Alberta from late May through late August. Adults are nocturnal and come to light. The larvae are polyphagus with a range of mostly herbs but also some woody plants listed as hosts (Covell, 1984).
Diet Info larvae are polyphagus with a range of mostly herbs but also some woody plants listed as hosts Range Widespread. Occurs across Canada from NL to BC and AK, north to YT and NWT, south in the east at least LA and MS. Found in open wooded areas, edges etc. Notes
Xanthorhoe are one of the most difficult groups of geometrid moths to identify, and little has been published on North American members of this genus to date. The illustrated specimen is from Edmonton, and was…
Xanthorhoe are one of the most difficult groups of geometrid moths to identify, and little has been published on North American members of this genus to date. The illustrated specimen is from Edmonton, and was identified by dissection. Mapped localities are shown as open dots (unverified records) unless the specimen was dissected. Listed by Bowman as X. designata emendata Pears.
Xanthorhoe labradorensis
Xanthorhoe labradorensis

Citation

Page Citation for Xanthorhoe labradorensis

Page Citation

"Species Details - Xanthorhoe labradorensis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4805/9-19302. Accessed 24 Jul. 2024.

References

Specimen Information

There are 29 specimens of this Species.

29 results plotted on map in 14 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM7018 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Tofield Collected BySchmidt, B. C. Date Collected2000-06-20

UASM11262 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Cooking Lake Date Collected1918-07-14

UASM11276 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1915-06-23

UASM11278 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1917-06-26

UASM11279 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1915-07-13

UASM11281 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Jasper National Park, Pocahontas Collected ByBowman, K. Date Collected1918-06-16

UASM11282 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1919-07-11

UASM11283 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByCarr, Frederick S. Date Collected1910-07-12

UASM11284 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1915-05-31

UASM11285 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1919-07-14

UASM11286 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-07-24

UASM11287 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Jasper National Park, Pocahontas Collected ByBowman, K. Date Collected1918-06-17

UASM11288 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Blairmore Collected ByBowman, K. Date Collected1918-06-22

UASM11291 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1915-07-07

UASM11293 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1921-06-10

UASM11296 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1919-06-16

UASM11297 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1919-06-30

UASM41705 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByAnweiler, G. G. Date Collected1998-05-25

BIRD4545 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Winfield Collected ByBird, C. D. Date Collected2000-06-29

BIRD4546 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Winfield Collected ByBird, C. D. Date Collected2000-07-06

BIRD4547 - Xanthorhoe labradorensis

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Big Knife Provincial Park Collected ByBird, C. D. Date Collected2002-06-12

Adult Seasonal Distribution