Coptotriche brevissima, Zhang & Sun & Li, 2025

Coptotriche brevissima sp. nov.

urn:lsid:zoobank.org:act:

( Figs 3 View FIGURES 1‒4 , 7 View FIGURES 7‒8 , 9 View FIGURES 9‒10 )

Type material. Holotype ♂, CHINA, Sichuan: Baliping, Anzihe , 1706 m, 24.vi.2016, leg. K.J. Teng and X.F. Yang, gen. slide No. SH21319 . Paratype 1♀, same data as holotype, gen. slide No. SH21318 .

Diagnosis. The new species is similar to Coptotriche longispicula ( Puplesis, 1988) in the male genitalia. It can be distinguished by the forewing without a tornal spot; the vinculum extended anteriorly in short triangle and the tulip-shaped part of the phallus uniformly wide in the male genitalia. In C. longispicula , the forewing has a tornal spot formed by dark brown scales; the vinculum extends into an elongate club anteriorly and the tulip-shaped part of the phallus is abruptly constricted to a small triangularly-shaped apex in the male genitalia ( Diškus 1998: 30).

Description. Adult ( Fig. 3 View FIGURES 1‒4 ). Male wingspan 10.5 mm.

Head. Frons cream; pecten pale yellow; frontal tuft straw yellow. Proboscis yellowish brown except yellow in basal 1/5. Labial palpus pale ochreous yellow. Antenna 0.64 × length of forewing; scape and flagellum whitish yellow. Collar ochreous yellow.

Thorax. Mesonotum yellow; tegula yellowish brown. Forewing straw yellow, with black scales denser along costal margin; fringe grey-yellow, tinged with yellow. Hindwing greyish yellow; fringe yellow. Foreleg yellow ventrally, dark brown except coxa yellow dorsally; midleg yellow ventrally, bronzy dorsally except femur yellow; hindleg pale straw yellow. Epiphysis bronzy, at basal 2/5 of tibia, reaching apex of tibia.

Abdomen. Yellow, with brown scales.

Male genitalia ( Fig. 7 View FIGURES 7‒8 ). Uncus with lateral lobes obtusely rounded at apex; excavation between uncus lobes broadly arched anteriorly. Socii membranous, spinous. Tegumen almost uniformly wide medially; lateral arm narrowed anteriorly, sclerotized on inner margin. Valva parallel sided from base to 1/2, widened beyond middle, thereafter narrowed to obtusely rounded apex, setose densely; costal margin slightly concave at middle; ventral margin convex beyond middle. Transtilla ( Fig. 7a View FIGURES 7‒8 ) slender; sublateral processes long, 0.44 × length of transtilla, slightly swollen distally. Vinculum ( Fig. 7b View FIGURES 7‒8 ) with ventral plate subtriangular, short, narrowed to rounded anterior margin. Phallus 1.2 × length of capsule; tulip-shaped part uniformly wide, with two rows of spines from its basal 1/5 to 5/7 laterally.

Female genitalia ( Fig. 9 View FIGURES 9‒10 ). Main ovipositor lobes subtrapezoid; second pair of ovipositor lobes fusiform. Inner prela short and wide, closely approaching each other anteriorly; median prela narrowly rod-shaped; transverse prela stout, rapidly narrowed anteriorly. Caudal plate of prela wide, triangularly produced posteromedially. Lateral lobes absent. Ductus bursae extremely short, 0.16 × length of corpus bursae. Corpus bursae ovoid.

Host plant. Unknown.

Distribution. China ( Sichuan).

Etymology. The specific epithet is derived from the Latin brevissimus, referring to the extremely short ductus bursae.