Biterolfa Schaus, 1928

Laurent, Ryan A. St & Kawahara, Akito Y., 2019, Reclassification of the Sack-bearer Moths (Lepidoptera, Mimallonoidea, Mimallonidae), ZooKeys 815, pp. 1-114 : 28

Biterolfa Schaus, 1928 Figs 29, 65, 138, 139

Type species.

Cicinnus althea Schaus, 1905.

Diagnosis.

All three species of Biterolfa are similar, primarily differentiated by genitalia characters. Externally Biterolfa are brown to red-brown with a dark gray-brown postmedial line outwardly margined with a thin gray submarginal region which narrows from the tornus to the falcate apex. Distinctive, parallel, white outlined dark streaks span across the middle of the forewing towards the costa.

Apomorphies.

Combination of following characters: (1) Broad, stout, simple valvae without any spines, protrusions, or arms (Fig. 29a); (2) Juxta with paired knob-like lobes situated laterally on either side of phallus (Fig. 29b); (3) Prominent gnathos, mesally unsclerotized, with pair of robust, thickly sclerotized arms (Fig. 29c); ventrum of arms may be toothed, terminus of gnathos arms distinctly narrowed with finger-like process at tip of each arm, often with secondary dorsal apical protrusion from tip of arm.

Remarks.

See remarks of Psychocampa below.