Harmaclona hexacantha Davis 1998

Harmaclona hexacantha

MALE (Figure 152).—Forewing length 13.6 mm.

Head: Similar to H. cossidella in color except occipital brownish band not evident; scales mostly 2 or 3 dentate. Antenna 55-segmented, similar to H. cossidella in color and structure; basal 7 flagellomeres with spherical sensory cavities.

Thorax: Similar to H. cossidella in color. Forewing pale whitish gray, irrorated with brown to fuscous with numerous, small, fuscous spots arranged longitudinally along costa and major veins as in H. cossidella; dorsal of wing with suffusion of pale golden brown; fringe predominantly brownish fuscous, with a fuscous, subterminal line along upper of termen and an outer fuscous line bordering entire terminal margin. Hindwing pale gray, with a slight purplish luster, semitransparent, becoming darker brown over apical and along fringe; scales relatively broad, partly transparent. Legs as described for subfamily.

Abdomen: Similar to H. cossidella.

FEMALE.—Unknown.

MALE GENITALIA (Figures 283–288).—Anterior margin of vinculum deeply concave on other side of elongate saccus, the latter nearly 0.9 the length of valva (Figure 283). Apotheca reduced, ~0.24 the length of valva. Valva (Figure 285) with dorsal lobe slender, tapering; ventral lobe ~2.1× the width, 0.93× the length of dorsal lobe, and terminating abruptly in a triangular, subacute apex. Anellus with 2 relatively stout, elongate, caudal arms ~0.35 the length of entire anellus. Aedoeagus with elongate basal keel ~0.4 the length of entire aedoeagus (Figure 286); distal with 3 pairs of relatively prominent spinose processes (Figures 287, 288): an apical, laterally divergent pair, a shorter, ventrolateral pair, and a more basal, mid-dorsal pair.

HOLOTYPE.—; ARGENTINA: Misiones, Arroyo Saura, 9 km N of L. N. Alem, Misiones Prov., 20 Nov 1973, O. Flint, USNM 29865, (USNM).

FLIGHT PERIOD.—November (single record).

DISTRIBUTION (Map 8).—Known only from the province of Misiones, located in northeastern Argentina.

ETYMOLOGY.—The specific name is derived from the Greek hex (six) and akantha (thorn, prickle), in reference to the three pairs of spines on the apical region of the aedoeagus.