Species Schinia rivulosa - Ragweed Flower Moth - Hodges#11135

11135

Schinia rivulosa (Guenée, 1852)

Phylogenetic sequence # 932091 (1)

Wingspan 25-31 mm

Adult: forewing blackish-gray in basal area and beyond PM line, and lighter gray in median area; AM and PM lines white, conspicuous; AM line arc-shaped, and PM line deeply curved; ST line straight, white, faint or sometimes absent; hindwing unmarked, brownish-yellow at base, shading to brownish-gray at outer margin

Quebec to Florida(2), west to Arizona, north to Oregon and North Dakota

fields, waste places where foodplants grow; adults are nocturnal and come to light

adults fly from July to October

larvae feed on ragweed (Ambrosia spp.)

one generation per year

Meal Moth (Pyralis farinalis) has a similar forewing pattern but its colors are brown and yellowish, and the hindwing is crossed by two wavy white lines

Arcigera Flower Moth (Schinia arcigera) forewing has less conspicuous white lines, its PM line is almost straight, and its hindwing is bright yellow and black; also note that the forewing of S. arcigera is often tinted with red or purplish, lacking in S. rivulosa

also other Schinia species such as ultima and thoreaui

Covell, p. 143, plate 29 #16 (3)

Pacific Northwest Moths (4)

Moth Photographers Group(5)

adult images plus dates and foodplant (Larry Line, Maryland)

distribution in Canada Quebec and Ontario only (U. of Alberta, using CBIF data)

Barcode of Life Data Systems (BOLD) (6)