|scientific name Haematopis grataria |
common name Chickweed Geometer
Prairie grasslands and shrublands.
Alberta flight dates range from mid July to late August.
The tan forewings and ochre hindwings, with two broad pink transverse bands and border, are unmistakable. The male antennae with its very long pectinations add to the uniqueness of this elegant moth.
The egg hatches in about seven days, and larvae go through five instars and mature in 28 to 30 days. The pupa is light yellow-green and light brown with a purplish dorsal line (McGuffin 1967). Adults come to light. There may be two flights annually in the southern prairies.
Not of concern.
Larvae feed on muse-ear chickweed (Cerastium), chickweed (Stellaria) and several species of knotweed (Polygonum) (Handfield 1999).
Quebec west to southeastern Alberta, with a single record from Ft. Smith, NWT (McGuffin 1967).
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