Lyces angulosa, Walker, 1854

Miller, James S, 2009, Generic Revision Of The Dioptinae (Lepidoptera: Noctuoidea: Notodontidae) Part 2: Josiini, Bulletin of the American Museum of Natural History 2009 (321), pp. 675-1022 : 764-765

KEY TO ANGULOSA GROUP SPECIES

1.

–

2.

Plate 29

Hind wing with a yellow central area of varying shape.................... 4 HW completely blackish brown, sometimes with a faint blue iridescence.......... 2 Forewing with a transverse lemon-yellow band crossing distal margin of DC, band extending from subcosta to immediately short of tornus;....................... 3

– FW with an oblique, orange-yellow band extending from wing base to immediately short of tornus; FW length 5 14.0–15.5 mm ( Brazil).............. banana (Warren)

3. Forewing somewhat elongate; transverse yellow band variable in width, never extremely wide, its inner margin crossing cubitus at base of R 1, its outer margin not extending beyond fork of Rs 1 and Rs 2 –Rs 4; lateral margins of female signum with numerous internal spines; FW length 5 9.5–14.5 mm........................... ena (Boisduval) / enoides (Boisduval)

– FW broad; transverse yellow band extremely wide, its inner margin crossing cubitus basal to R 1, its outer margin extending well beyond fork of Rs 1 and Rs 2 –Rs 4; lateral margins of signum with few internal spines; FW length 5 15.5 mm............. ignorata (Hering)

4. Yellow central area of HW broad, its outer margin rounded, reaching fork of M 3 +CuA 1; body entirely gray-brown with a steely iridescence; apex of valva acute, bladelike (fig. 322A); FW length 5 16.5–21.5 mm (eastern Brazil)........ angulosa Walker

– Yellow central area of HW elongate, narrow, not touching fork of M 3 +CuA 1; body iridescent blue gray, abdominal venter whitish; apex of valva forming a triangular process, not bladelike (fig. 321A); FW length 5 11.5– 18.0 mm........................ 5

5. Transverse band of FW wide, straight; dorsal process on uncus small, spatulate; central portion of valva with a triangular process, base with a large flange, apex triangular; base of female CB with a set of internal spines; FW length 5 11.5–14.5 mm ( Mexico S to Honduras)................ ariaca (Druce)

– Transverse band of FW narrow, curving gently outward; dorsal process on uncus large, bladelike; central portion of valval costa rugulose, base simple, apex spatulate; base of CB smoothly sclerotized, lacking internal spines; FW length 5 14.5–18.0 mm (eastern Brazil)...... constricta (Warren)