About Ogdoconta tacna Barnes, 1904
Ogdoconta tacna is a moth species belonging to the Noctuidae family, first formally described by William Barnes in 1904. It is found in the United States in central and southeastern Texas, and it is likely also present in Mexico. Forewings of this species measure 11–13.5 millimeters in length. The forewings are gray-brown with a faint greenish tint, marked with fine white lines and a light spread of white scales. The orbicular and reniform spots on the forewings are clearly outlined by fine, dirty-white lines. The postmedial line is mostly straight and oblique, running from the forewing costa to the posterior margin, with a slight outward angulation near the bottom of the reniform spot. Vague dark gray-green rectangles mark the inner side of the postmedial line. The subterminal area of the forewing is slightly lighter than the terminal area, and the subterminal line is an irregular, dull white structure. The terminal line is made up of a series of dark rectangles, each accented on its inner side by a white line. Male hindwings are dirty white with dark scales along the fringe and a dusting of dark scales along the costal margin. Female hindwings are more broadly suffused with dark scales across the entire wing. Adult Ogdoconta tacna have been recorded on the wing during two periods: April and May, and again in September and October.
