Minclethrorasa Qin, Zhu & Han, 2025, gen. nov.

GenusMinclethrorasagen. nov. Type species. Minclethrorasa chinensis sp. nov. Diagnosis. The new genus is closely related to Clethrorasa in coloration and wing shape but can be unambiguously distinguished by both external morphology and genitalic structures, as comprehensively detailed in Table 1. Description. Adult. Wingspan 24.0–30.0 mm. The color of head, dorsal side of thorax, patagia, tegulae, and forewings generally white. Antennae black-brown and linear. Proboscis well developed, with the labial palpus extending upward. Forehead smooth and devoid of protrusions. Compound eyes large. Two pairs of prominent black spots located in disc area of thorax, patagia with pair of black spots; each side of metathorax displaying a cluster of radiating white hairs. Abdomen off-white; several segments of abdominal base adorned with brushes on dorsal side; anal tuft white, extending straight out from the posterior end of abdomen; tufts of hair arranged on lateral sides of abdomen white at distal half. Legs partially white, with white ring at each segment on the base of tarsus. Forewings slightly narrow, scattered with black, metallic blue glossy dots, blocks, or stripes. Hindwings broad, mostly off-white, with light brown outer 1 / 4. Male genitalia. Uncus flattened, hook-shaped; tegumen broad, dorsal lobe covered in granules; subscaphium droplet-shaped; valva fairly regular, with slight protrusions and absent harpe; vinculum slender; saccus U-shaped; aedeagus cylindrical, featuring a well-developed vesica with multiple medial diverticula and moderately abundant cornuti. Female genitalia. Papillae anales petal-shaped; anterior and posterior apophysis processes relatively slender; ductus bursae membranous, short and simple; corpus bursae long, pouch-shaped, with longitudinal folds and a strong sclerotized signa plate. Remarks. The forewings of Minclethrorasa are relatively narrow and elongate, with rounded apices and anal angles, and the coloration of the head, thorax, and forewings is similar to that of the genus Clethrorasa, but the body shape and genitalia differ markedly from those of all known species of Clethrorasa. Therefore, Minclethrorasa is treated here as a new genus. Distribution. China (Fig. 22). Etymology. The new genus is named Minclethrorasa, formed by combining the generic name Clethrorasa with the prefix min- (derived from Latin ‘ minus ’, meaning ‘ smaller’). This nomenclature reflects its morphological similarity to Clethrorasa while emphasizing its diminutive body size.