Cranopygia longibifurcata, Chen & Jiang, 2025

Cranopygia longibifurcata sp. nov.

Figs 8 View Figure 8 , 9 View Figure 9

Specimen examined.

Holotype: China • ♂; Yunnan Province, Dehong Dai and Jingpo Autonomous Prefecture, Mang City, Kongque Valley Forest Park ; 24.5313°N, 98.6468°E; 1350 m; 6.vii.2025 GoogleMaps . No additional non-type material examined.

Differential diagnosis.

The new species belongs to a previously undefined appendiculata - group, which includes Cranopygia appendiculata Hincks, 1955 , Cranopygia bifurcata Srivastava, 1979 , and C. yunnanea , characterized by symmetrical forceps, external paramere with inner and outer processes of similar size, and virga long, basally sclerotized, without lateral flanges, and apically forked. It closely resembles C. bifurcata in male habitus and genitalia, but differs in the penultimate sternite with convex lateral margins (vs. emarginate) and apical branches of the virga about 1.1 times as long as the external paramere (vs. about two-thirds its length) ( Srivastava 1979). In addition, the new species differs from C. appendiculata in having apical branches of the virga of similar length (vs. one branch more than twice as long as the other), and from C. yunnanea in possessing apical branches of the virga slightly longer than the external paramere (vs. approximately one-third its length) and external paramere three times as long as wide (vs. twice) ( Hincks 1955; Bey-Bienko 1959; Chen and Ma 2004).

Description.

Male. General appearance. Large-sized, whole body mostly setose (Fig. 8 A – C View Figure 8 ). Body length 40.5 mm. Forceps symmetrical, length 9.4 mm.

Head. Head longer than broad; mostly dark, medially with one bilobed pale area. Frontal and coronal sutures distinct. Eyes not prominent, about as long as genae. Antennae mostly brown, with at least 39 segments; first antennal joint shorter than distance between antennal bases. Mouthparts pale brown to dark brown.

Pronotum. Pronotum about as long as wide; anterior and lateral margins rounded; posteromedial margin emarginate. Median longitudinal furrow distinct. Surface mostly dark, with pale lateral areas.

Thorax. Tegmina well developed, near twice as long as pronotum; mostly dark brown, with a continuous pale stripe on lateral surface and an interrupted pale stripe on anterior half of dorsal surface. Scales of hindwings pale; longer than wide; posterior margins weakly rounded. Legs slender, mostly pale, with brown stripes on femora; second tarsomere near as wide as third (Fig. 8 D View Figure 8 ).

Abdomen. Abdomen dark brown, gradually expanded to last tergite. Ultimate tergite broad, subquadrate; posteromedial extension rounded, with truncate posterior margin; weakly punctured; mostly hairy; median longitudinal sulcus present. Forceps dark brown, subcontiguous, symmetrical; bases strongly expanded, with two stout inner teeth; inner margin with giant tooth near apex and sparse denticles throughout; apex pointed, incurved. Penultimate sternite rounded, posterior margin weakly emarginate.

Genitalia. Genitalia broad, brown (Fig. 9 A, B View Figure 9 ). Paramere subtriangular basally. Genital lobes well developed; virga within genital lobe slender, apex bifurcated into a thick inner branch and a thin outer branch, each branch longer than external paramere, abruptly constricted apically. External paramere slender, with mostly consistent width; incision of anterior margin deep, wide; inner process subconical, pointed apically; outer process shorter than inner process, obtuse.

Etymology.

The specific epithet refers to the long bifurcate apex of the virga

Distribution.

The species is currently known only from Yunnan Province, China.