Entomology Collection TitleImage Bugs Pinned
Species Page - Epirrhoe sperryi
species list search results ->Epirrhoe sperryi ->species page

E-mail this Page   
Print this Page   
Link to this Page   

scientific name    Epirrhoe sperryi    

common name     Small Argent & Sable

It frequents open wooded areas, edges, etc.

A small (1.8-2.0 cm wingspan) day-flying moth with black and white wings. The black forewings are crossed by a basal line of scattered white scales, a more prominent white antemedian band and a prominent white postmedian band divided by a series of small black dots and bent sharply outward near the midpoint. The subterminal area is black and is crossed by a subterminal line consisting of a series of small white crescents. Essentially the same pattern occurs on the hindwings. The fringe is black checkered with white at the veins. Very similar to forms of both Rheumaptera hastata and Rheumaptera subhastata, both of which are larger and usually have more extensive areas of black or white. E. alternata is also larger and is mostly grey, not black, and lacks the crisp, busy pattern of sperryi.

life history
E. sperryi is a diurnal moth. There is a single brood in Alberta, with adults from early May through early July, with the peak in June. The early stages and larval hosts are apparently unknown.

diet info
Unknown, but other closely related Palaearctic species all feed on species of bedstraw (Gallium), which is the likely host for sperryi as well.

NL to YT. In Alberta it has been collected in the Boreal, Parklands and Mountain regions, where it is locally common.

Until described as a separate species by Herbulot in 1951, sperryi was thought to be conspecific with Palaearctic E. tristata (L.) and was listed by both Bowman and Jones as E. tristata. There are several closely related and almost identical looking species in the Palaearctic. The specimen illustrated above is from Dry Island P. Pk., AB.

quick link

Comments (1)Add New Comment

Uwe-Jens Oppel (2015-10-31)
2015 for the first time and common in Fort McMurray

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

Add New Comment (all fields are required)

Related Species Info
Display Hierarchy
References (3)
Specimen Info
There are 39 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (39)
Related Links
Moth Photographers Group


Logo Department of Museums and Collections ServicesLogo University of Alberta