Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Macaria bitactata - Split-Lined Speranza - Hodges#6304

Speranza bitactata - Macaria bitactata Split-lined Angle Moth - 6304 - Macaria bitactata Spit-lined Speranza - Macaria bitactata Split-lined Angle Moth - Macaria bitactata - male Macaria ____ ? - Macaria bitactata - male Moth Species please - Macaria bitactata Digrammia ? - Macaria bitactata Gemetridae: Macaria bitactata  - Macaria bitactata - female
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 bitactata (Split-Lined Speranza - Hodges#6304)
Hodges Number
Other Common Names
Short-lined Granite (1)
Synonyms and other taxonomic changes
Macaria bitactata (Walker, 1862) (2) (3) (4)
Original Combination:
Thera bitactata Walker 1862 (4)
Macaria packardaria (Moschler 1883) (4)
Itame bitactata (Walker, 1862) (5)
Adult: Gray with bold, black transverse lines on FW. The four dark costal wedges typical of the genus, continue as AM, PM and median lines. The median line broadest and incorporating the discal spot. AM and PM line sometimes broken. HW slightly paler, speckled grey with a faint (sometimes absent), PM line and discal spot, slightly darker marginal area. (1)
Specimen identified by DNA analysis:
Newfoundland west to the Yukon and B.C., south to California (1)
Moist open woods and shrubby areas.(1)
Flies in July and August, peaking in mid-July. (1)
Larvae feed on alder (Alnus sp.) and gooseberry (Ribes sp.) (1)
See Also
Similar to M. decorata, which has a speckled, not uniform grey, FW ground color, and lacks the thickened median line.
Members of the genus Digrammia have a dark patch midway down the FW submarginal area, absent in M. bitactata.
Speranza subcessaria - Barred Speranza

Speranza wauaria - The median band has a very sharp angle.
Internet References
Moth Photographers Group – species page (3)
BOLD Systems - images of DNA supported specimens (2)
E. H. Strickland Museum – brief description & image of pinned adult [cite:1187786] (1)
Discover Life – species page