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Genus Ozarba

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Eustrotiinae
Genus Ozarba
Synonyms and other taxonomic changes
Ozarba Walker, 1865
Oedicodia Hampson, 1910
Poole (1989) included 208 species in the genus Ozarba. There are about 5 species in North America. (1)
The first two look-alike species are bi-colored and similar, but easy to split up when compared side-by-side:
  Ozarba catilina                  Ozarba propera
-- vs. -- Check the angle of the reniform spot and the shape of the dark patch beyond it, along the costal edge, near the apex of the fore-wings.

The other three species are much more difficult to separate. Here are some notes:
  Ozarba aeria
(widespread south-eastern) This species generally lacks the dark coloring near the inner margin, but may have some coloring, just above the PM line.

  Ozarba nebula
(southern USA) The wings are colored various shades of greyish-blue to brown. The AM line may be prominent-to-weak and the dark, costal patch above it is also prominent-to-weak.

  Ozarba n. sp.
(AZ, TX) The wings are mostly tan-brown colored. The AM line is weak-to-missing and the dark, costal patch above it is also weak-to-missing.
Provisionally placed in Eustrotiinae in the Pohl et al. checklist
See Also
Some in the genus Neoligia may look very similar.
Neoligia crytora
Neoligia invenusta