Paduniella sanyaensis Peng & Sun sp. nov.

Fig. 6A-C

Type materials.

Holotype: China • 1♂; Hainan Province, Sanya City, Tianya district, Hongxin village, Hongxinxi River; 18°27.78'N, 109°27.88'E; alt. 150 m; 22-vii-2022; light trap; L. Peng & H. Zang leg.; NJAU Tricho-20220722-0001. Paratypes: China • 2♂; same data as holotype; NJAU Tricho-20220722-0002 to Tricho-20220722-0003 • 2♂; Hainan Province, Sanya City, Tianya district, Fuwan reservoir; 18°16.80'N, 109°28.94'E; alt. 60 m; 25-vii-2022; light trap; L. Peng & H. Zang leg.; NJAU Tricho-20220725-0001 to Tricho-20220725-0002.

Diagnosis.

This species is similar to Paduniella nama Johanson & Oláh, 2010 from Vietnam. However, P. sanyaensis sp. nov. can be easily distinguished by the following characteristics: (1) the tergum IX is similar in width to the sclerotized strips in lateral view, whereas in P. nama tergum IX significantly wider than sclerotized strips; (2) the superior appendages are elongate-triangular in lateral view, but subrectangular in P. nama; and (3) the phallobase is enlarged, nearly triangular in lateral view, a feature missing in P. nama .

Description.

Male. Length of each forewing 2.1-2.3 mm (n = 5), holotype 2.3 mm. Specimens in alcohol uniformly pale yellow-brown, antennae annulate with brown. Genitalia. Sternum IX in lateral view with lower portion subrectangular and upper portion produced anterodorsad on each side into slender lobe (Fig. 6C); in ventral view transversely subrectangular (Fig. 6A). Sclerotized portion of tergum IX L-shaped, upturned distally, distal end membranous in lateral view (Fig. 6C); somewhat crescentic in dorsal view (Fig. 6B). Superior appendages elongate-triangular in lateral view (Fig. 6C); lightly twisted and triangular in dorsal view (Fig. 6B). Sclerotized strips slightly clavate in lateral view (Fig. 6C). Median process slender, tubular, arising from anterior bases of sclerotized strips above phallobase (Fig. 6B, C). Inferior appendages each with basal 1/4 broad, then narrower, with upper and lower margins parallel to each other and slightly sinuous, apex truncate in lateral view (Fig. 6C); curved mesad with apex slightly enlarged in ventral view (Fig. 6A); mesal branch of each inferior appendage arising from middle part of inner surface, elongate-triangular in ventral view (Fig. 6A). Phallobase well developed, subtriangular, about half as long as phallicata in lateral view (Fig. 6C); subcircular in ventral view (Fig. 6A); phallicata curved posteroventrad, compressed, with apex enlarged in lateral view (Fig. 6C); slender in ventral view (Fig. 6A); paramere slender, shorter than phallicata in lateral view (Fig. 6C).

Etymology.

Latin feminine adjective Paduniella sanyaensis, the name referring to the location of the type locality in Sanya City.

Distribution.

China (Hainan).