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Species Haematopis grataria - Chickweed Geometer - Hodges#7146

Chickweed Geometer - Haematopis grataria - male Illinois Data Point - Haematopis grataria - male Chickweed Geometer For Illinois In September - Haematopis grataria - female What Moth? - Haematopis grataria Chickweed Geometer - Haematopis grataria chickweed geometer - Haematopis grataria Haematopis grataria - male  Chickweed Geometer  - Haematopis grataria - male
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
No Taxon (Moths)
Superfamily Geometroidea
Family Geometridae (Geometrid Moths)
Subfamily Sterrhinae
Tribe Timandrini
Genus Haematopis
Species grataria (Chickweed Geometer - Hodges#7146)
Hodges Number
Synonyms and other taxonomic changes
Haematopis grataria – (Fabricius, 1798)
described in 1798 by Fabricius, who originally placed it in genus Phalaena
Explanation of Names
HAEMATOPIS: from the Greek "haima/haimatinos" (blood/of blood); presumably refers to the pink color on the wings, which in some specimens can be as red as blood
the only species in this genus in North America
wingspan 20-25 mm
Adult: forewing dull yellow with two pink bands crossing outer half of wing, and pink discal spot in median area

Males (below, left) have strikingly plumose (featherlike) antennae. Females (below, right) have filiform (threadlike) antennae

throughout United States; in Canada from Quebec to Alberta (absent from both coasts), north to Northwest Territories
fields, meadows, lawns, gardens; adults often fly during the day
peak flight time is August but adults may be seen from May through October
larvae feed on chickweed (Stellaria spp.), smartweed/knotweed (Polygonum spp.), clover, and other low plants
See Also
no other moth is usually confused with this species
Print References
Powell, J. A. & P. A. Opler, Moths of Western North America, p. 222, pl. 31.31f(1)
Covell, p. 377 & plate 46 #21 (2)
Internet References
Moth Photographers Group - photos of living and pinned adults.
live adult images (Larry Line, Maryland)
live adult image (Lynn Scott, Ontario)
pinned adult images of female [top] and male (CBIF)
distribution in Canada; list of provinces and territories of occurrence (CBIF)
Works Cited
1.Moths of Western North America
Powell and Opler. 2009. UC Press.
2.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.