Palaeugoa peregrina (Hacker, 2014) Volynkin & László, 2020

Volynkin, Anton V. & László, Gyula M., 2020, Revision of the genus Palaeugoa Durante, 2012, with descriptions of seven new species (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Ecologica Montenegrina 36, pp. 53-77 : 70-71

The P. peregrina species-group

Diagnosis. Members of the species-group differ from those of other Palaeugoa lineages by their more densely ciliate male antennae and the pale creamy yellow wing colouration with greyish brown forewing pattern consisting of indistinct shades and intense suffusion between veins. The male genitalia are characterized by the combination of the following characters: (1) the anellus is broad, thick-walled, densely covered in robust spines; (2) the transtillar processes are modified into a densely spinulose medio-ventral thickening fused with the anellus distally; (3) the cucullus is elongate, apically rounded, with a relatively long membranous ventral part; (4) the costal process is represented by a very short crest; (5) the aedeagus bears one or two characteristic longitudinal distal crests.

Description. External morphology of adults. Small moths with forewing length 8–11.5 mm in males. Male antennae densely ciliate. Body pale creamy yellow with admixture of brown scales. Forewing ground colour pale creamy yellow, pattern greyish brown, indistinct, represented by an extensive spot at wing base, an indistinct shade in the antemedial area, a longitudinal shade in the cell, a large elongate medial patch at anal margin, a dense suffusion along the costal margin near apex and a sparse suffusion between veins. Forewing cilia pale greyish brown. Hindwing pale creamy yellow with pale brownish suffusion. Male genitalia. Uncus short, dorso-ventrally flattened, weakly sclerotized and setose, fully fused with the tuba analis. Tuba analis broad, membranous, subscaphium weakly setose. Tegumen short and narrow. Anellus broad, thick-walled, densely covered in robust spines. Juxta weakly sclerotized, broad, trapezoidal or triangular, basally concave. Vinculum short but wide, with well-developed, broad saccus. Transtilla thickened and densely spinulose, fused with dorsal part of anellus distally. Valva relatively short and moderately broad, costal margin convex medially, cucullus narrow, apically rounded, weakly setose, ventral membranous section relatively long. Costal process very short, crest-like, erected in right angle to costal margin. Sacculus moderately wide, with a medium long, robust distal process and a short but broad medial process directed ventrally. Aedeagus relatively large when compared to the size of the genital capsule, bearing one or two conspicuous, longitudinal distal crests. Vesica short but relatively broad, with three or four diverticula with scobination, granulation or clusters of spines. Distal plate of vesica narrow and very weakly sclerotized or absent (in P. peregrina ).

Female unknown.