Nola nayongensis, Chen & Zhang & Hu, 2022

Chen, Zhe-Jing, Zhang, Bei-Bei & Hu, Yan-Qing, 2022, New records of the genus Nola Leach, 1815 (Lepidoptera, Nolidae, Nolinae) from China, with description of a new species, Zootaxa 5124 (2), pp. 245-250 : 246

Nola nayongensis sp. nov.

( Figs 1–3 )

Type material. Holotype: male, Nayong county, 2109 m, Bijie , Guizhou Prov., 1.viii.2021, leg. Yanqing Hu & Yong Yu.

Paratypes: 1 male, with the same data as the holotype; 1 male, Nayong county, 1731 m, Bijie, Guizhou Prov., 2.viii.2021, leg. Yanqing Hu & Yong Yu. The type specimens are deposited in Southwest University of Science and Technology ( SWUST) .

Diagnosis. Externally, the new species closely resembles Nola pinratanoides Hu, Wang & Han, 2015 ( Figs 4–6 ), but the main diagnostic differences are found as follows: ground color of the forewing of the new species is pale brown with the white patches along the costal margin and a punctiform postmedial line. The forewing of Nola pinratanoides has a brown ground color, the diffused grayish white pattern at costal margin and wing base with a filiform postmedial line. In male genitalia, the new species can be separated by the combination of the following characters: a distally divided valva, a basally wide ventral lobe of valva, a bigger and wider sacculus, an apically rounded saccus and a shorter spine on the aedeagus. The male genitalia of Nola pinratanoides has a medially divided valva, a basally narrower ventral lobe of valva, a smaller sacculus, an apically pointed saccus and a longer spine on the aedeagus.

Description. Adult ( Fig. 1 ). Wingspan 14–15 mm.

Head white; collar brown; antenna brown, white at the base, bipectinate in male; labial palpi white.

Thorax with blackish brown scales. Forewing ground color pale brown; costal margin with the white patches; vein Sc black at the base; basal line undistinguishable; antemedial line dark brown, arc-shaped; medial line undistinguishable; postmedial line consists of double lines, punctiform, wavy; subterminal line undistinguishable, but veins armed with dark and short lines; terminal line blackish brown; cilia pale blackish brown. Hind wing ground color pale grayish; discal spot pale black; cilia gray.

Abdomen brown.

Male genitalia. ( Figs 2 & 3 ). Uncus not developed; tegumen of moderate size; valva divided distally; dorsal lobe of valva rounded apically, longer than ventral lobe of valva, costal margin sclerotized slightly; ventral valva relatively short, a small spine located at apex of valva, ventral margin sclerotized; harpe slender, incurved, tapering and pointed apically; sacculus elliptic, almost as long as the ventral lobe of valva; saccus V-shaped, rounded apically. Aedeagus cylindrical, with a short and curved spine apically; vesica without cornuti.

Female. Unknown.

Distribution. China (Guizhou).

Etymology. The specific name is derived from the name of type-locality.

Figures

FIGURES. 1–12. Nola spp., male adult & male genitalia. 1–3. Nola nayongensis sp. nov. 1. male adult (holotype); 2 & 3. male genitalia (holotype). 4–6. N. pinratanoides (illustration by Hu et al., 2015, China, Yulong). 4. male adult; 5 & 6. male genitalia. 7–9. N. quadriguttula. 7. male adult; 8 & 9. male genitalia. 10–12. N. canioralis. 10. male adult; 11 & 12. male genitalia.