Head: Shiny, gray-brown with bronze reflections.
Antenna: Dark brown, base (scape) long, slightly wider than segments.
Thorax: Shiny, gray-brown with bronze reflections.
Wings: Shiny, gray-brown with bronze reflections. A black spot close to inner margin near base of wings (in the fold). Two more black spots, one at center of mid-wing and another below it on last (apical) 1/3 of wing. Spots have some lighter marks above or below the dark spots. Cream-coloured mark on outer wing margin, about 1/3 before tip, with a corresponding cream mark opposite on the inner margin. A black spot at wing tip, or sometimes a series of black dots with lighter marks between. Fringe dark, lighter on anal angle. Note: All Perimede have the same arrangement of spots on their wings. Hindwings dark grayish-brown, tip darker. Fringe lighter brown.
Legs: White with gray-brown scales. Hind foot black.
Abdomen: Dark grayish-brown.
Similar Species: Perimede circitor has white hind foot, otherwise almost identical. Bryotropha species usually have 4 dark spots, 2 in the fold and 2 in the discal cell, except Bryotropha gemella, which has one in the fold missing, thus identical to Perimede species, but wings are not shiny and fringe is light; on Perimede ricina the fringe is dark.
Size: 5 to 6 mm. Wingspan 10 to 14 mm.
Habitat: Deciduous forests.
Flight Time: July
Life Cycle: Unknown.
Comments: Pohl (2018) records this species as new for Canada, found at Port Franks by Stead, no date. Wheatley, July 05, 2012.
Synonyms: Hodges 1962
Entomological News, 1919, Vol. 30 by Braun, pp. 263 to 264. Note: reference Perimede falcata almost identical to P. ricina.
Proceedings of the Entomological Society of Washington, 1962, Vol. 64 by Hodges.
Smithsonian Contributions to Zoology 1969 #18: Nearctic Walshiidae Notes and New Taxa (Lepidoptera: Gelechioidea), pg. 12 by Hodges. List.
Holotype as Perimede ricina female by Hodges, 1962. Type Locality: Ithaca, New York. In Cornell University Entomological collection, Type No. 3825.