Numbers
One of 3 species in this genus in North America listed at
All-Leps.
Size
Wingspan about 17 mm, based on photo by Jim Vargo at MPG. Forewing 7 - 8.5 mm (n = 4 measured images; CS).
Identification
Adult: forewing light reddish with pale AM and PM lines that diverge slightly as they run from costa to inner margin; hindwing light gray; tibiae and tarsi lack conspicuous scale tufts.
Range
California to Texas and Oklahoma.
Season
Adults fly in June and July in California.
See Also
Posturing Arta (
Arta statalis), forewing is darker brownish-red, AM & PM lines are parallel, and the species doesn't occur west of Texas.
Arta olivalis, forewing is pale green with contrasting red fringe.
Basacallis tarachodes has a more contrasting median area, with PM line further from the outer margin, and has a prominent series of black dashes for the terminal line.
Parachma Moth (
Parachma ochracealis), tibiae and tarsi have conspicuous scale tufts.
Caphys arizonensis, forewing AM & PM lines are gracefully curved and parallel, terminal line is red, and the species is apparently restricted to Arizona and Mexico.
