Noctuidae - Psaphidinae - Nocloini




Triocnemidini New Genus 1 grandimacula (Barnes and McDunnough) 1910 

Oxycnemis grandimacula Barnes and McDunnough, 1910, Jour. New York Ent. Soc., 18: 156.

Oxycnemis erratica Barnes and McDunnough, 1913, Contrib. Nat. Hist. Lep. N. Am., 2(3): 113. NEW SYNONYMY

Diagnosis: The combination of the elongate and pointed forewing, black coloration of the forewing, the strong foretibial claw with secondary claw, and the lack of lashes from the antennal base over the eye should distinguish this species from all others in North America. The overall coloration of the forewing is gray black with strong black streaks in the basal area and the tornal region. The orbicular spot and reniform spot are both large and outlined by a distinct if thin black line. The hindwing is pure white except for fine black streaks on the veins along the outer margin.

Adults have been collected from March to October but tend to cluster in May and August, possibly indicative of two broods.

Distribution: This species occurs from Brownsville in southeast Texas, along southern Texas to the Big Bend Region, and west to southern Arizona. It has also been collected in Nuevo Leon in northern Mexico. The majority of specimens in collections come from the Big Bend region of western Texas. Males are much commoner than females in collections. The females are a bit chunkier and the markings of the forewing perhaps a bit less defined than in males. Otherwise individual and geographical variation are not apparent in the species.

Identification Quality: Excellent

Larva: Unknown

Foodplants: Unknown


Fortamedia grandimacula

Triocnemidini New Genus 1 new species 1is a sister species of grandimacula, but is larger and lacks the dark streak along the M3 vein in the outer third of the forewing. The forewing is a smooth gray black and the basal line is absent.

Similar Species

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of New Genus 1 new species 1