Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Macaria bisignata - Red-headed Inchworm - Hodges#6342

unknown - Macaria bisignata Two-spotted Macaria - Dorsal - Macaria bisignata Macaria bicolorata - Macaria bisignata What moth please? - Macaria bisignata Pennsylvania Moth - Macaria bisignata Geometrid moth - Macaria bisignata Macaria bisignata Hodges #6342 - Red-headed Inchworm - Macaria bisignata
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Geometroidea (Geometrid and Swallowtail Moths)
Family Geometridae (Geometrid Moths)
Subfamily Ennominae
Tribe Macariini
Genus Macaria
Species bisignata (Red-headed Inchworm - Hodges#6342)
Hodges Number
Synonyms and other taxonomic changes
Macaria bisignata Walker, 1866
Semiothisa bisignata
wingspan about 25 mm
Adult: forewing ground color pale brown or gray with light speckling and crossed by three faint wavy lines (sometimes absent); four dark brown marks along costa, and often another dark blotch along postmedial (PM) line near middle of wing; hindwing has similar ground color but no dark markings; head reddish brown; remainder of body similar to wing color
Newfoundland to Georgia, west to Arizona, north to Ontario
adults fly from May to August
larvae feed almost exclusively on pine
Print References
Walker, F., 1866. Catalogue of Lepidoptera Heterocera. Seventh series. List of the specimens of lepidopterous insects in the collection of the British Museum. 35(5): 1655.
Internet References
live adult images and dates (Lynn Scott, Ontario)
common name reference plus foodplant and flight season (Ohio State U.)
distribution in Canada list of provinces (CBIF)