Pseudoeupolyphaga vestis Ren & Han, 2025

Ren, Yi-Ming, Han, Wei, Che, Yan-Li & Wang, Ji-Rui, 2025, Four new species of the genus Pseudoeupolyphaga Qiu & Che, 2024 (Blattodea, Corydioidea, Corydiinae) from Yunnan, China, ZooKeys 1261, pp. 337-358 : 337-358

Pseudoeupolyphaga vestis Ren & Han sp. nov.

Figs 5 A – L , 8 A, D, I, J

Type material.

Holotype: China • male ( ZAFU); Yunnan Province, Pu’er City, Liushun Town ; 25 Dec. 2024; Quan-fu Duan leg; ZAFU -IC-200018 . Paratypes: China • 1 female & 1 nymph ( ZAFU); same collection data as holotype; ZAFU -IC-200019 to 200020 • 1 female & 1 nymph ( SWU); same collection data as holotype; SWU -B-CC-010085 to 010086 .

Diagnosis.

The male of this species resembles Pseudoeupolyphaga deficiens Han, Che & Wang, 2024 , but differs in having a narrower anterior whitish margin in the pronotum. In addition, the abdominal tergites of females are uniformly orange-red (observation of two samples), making it easy to distinguish from most congeners.

Description.

Holotype. Measurements (mm). Overall length (including tegmen): 26.30; body length: 19.48; body width (tegmina not included): 10.17; tegmen length × width: 22.77 × 9.30; pronotum length × width: 8.63 × 4.06.

Coloration. Pronotum deep reddish brown, setae yellowish, anterior whitish margin yellow (Fig. 5 A, E ). Tegmina pale yellow, interspersed with varying-sized blackish-brown maculae (Fig. 5 A ). Eyes, vertex, and space between ocelli black. Ocelli pale yellow. Antennal sockets, and ante-clypeus yellowish brown. Post-clypeus, labrum, labial palpi and maxillary palpi blackish brown (Fig. 5 G ). Legs yellowish brown, with spines ranging from reddish brown to black. Pulvilli and arolia white. Sterna pale yellow, middle and distal part gray to pale black (Fig. 5 B ).

Body. Head: Sub-rounded. Eyes and ocelli well-developed. Interocular space narrower than the distance between ocelli, the latter narrower than the distance between antennal sockets. Clypeus developed (Fig. 5 G ). Pronotum: Elliptical, widest near the posterior margin. Surface densely covered with short setae, bearing symmetrical black stripe medially. Anterior whitish margin clearly delineated from deep reddish-brown areas (Fig. 5 E ). Tegmina and hind wings: Tegmina with dark brown patch confluent basally along outer margin. Remaining areas sparsely scattered with variably sized blackish- brown maculae (Fig. 5 A ). Legs: Slender, front femur Type C 1. Pulvilli and arolia present (Fig. 5 B ). Abdomen: Supra-anal plate transverse, pubescent, posterior margin protruded medially. Paraprocts simple (Fig. 5 I ). Subgenital plate bearing short setae, posterior margin slightly curved. Styli short and small (Fig. 5 J ). Genitalia: Well-sclerotized. L 1 apically dilated, basally bifurcated. L 2 arched curved, distally dilated. Genital hook (L 3) thin and straight, curved hook section small. L 4 M broad lamellate. L 4 N developed, pda and paa broad and curved. L 8 irregular, lamellate, bearing a long clavate process. R 1 M stoutly expanded terminally. R 1 L elongate and banded. R 2 divided into two chunks, narrowly spaced, with rounded margins. R 3 broadly concave (Fig. 5 K, L ).

Paratype. Measurements (mm). Body length: 20.08; body width: 12.43; pronotum length × width: 9.14 × 5.28.

Coloration. Terga orange-red (Fig. 5 C ). Head dark brown. Antennae yellow. Ocelli white. Ante-clypeus yellowish brown. Post-clypeus dark brown. Labrum with a white patch basally, remaining portions yellowish brown (Fig. 5 H ). Legs reddish brown. Spines on the leg reddish brown, terminal nearly black. Sterna yellowish brown to orange-red, subgenital plate black (Fig. 5 D ).

Body. The widest point of pronotum near the hind margin, middle part with symmetrical dark-black stripe, anterior yellow margin indistinct (Fig. 5 F ). Ocelli indistinct, degenerated to two patches. The distance between ocelli narrower than the distance between antennal sockets, and the latter narrower than interocular space (Fig. 5 H ). Front femur Type C 1. Arolia and pulvilli absent.

Nymph. Similar to female, only the coloration is slightly paler.

Ootheca. Reddish brown, surface with many parallel, dense longitudinal lines. Ridges of serrated protuberances with broad bases, slightly curved lateral edges and blunt tips. No respiratory canals (Fig. 8 A, D ).

Etymology.

The species epithet is derived from the Latin word vest, denoting its tegmina markings resembling a vest.

Remarks.

This species exhibits relatively close genetic divergence to both P. spelunca (7.75 % – 8.93 %) and P. duani (8.75 %). Morphologically, the male tegmina maculae of this species closely resemble those of P. deficiens , and females of both taxa share a tergum pigmentation tending toward orange-red. However, the former displays significantly deeper pigmentation, and this species exhibits a pronounced color difference between the terga and sterna (terga orange-red, sterna yellowish brown to orange-red), whereas in P. deficiens , the pigmentation of these surfaces is largely consistent. In addition, the substantial genetic divergence between P. vestis and P. deficiens reaches 17.53 %, supporting their recognition as distinct species.

Figures

Figure 5. Pseudoeupolyphaga vestis Ren & Han, sp. nov. A, B, E, G, I – L. Male holotype; C, D, F, H. Female paratype; A. Habitus, dorsal view; B. Habitus, ventral view; C. Habitus, dorsal view; D. Habitus, ventral view; E. Pronotum, dorsal view; F. Pronotum, dorsal view; G. Head, ventral view; H. Head, ventral view; I. Supra-anal plate, ventral view; J. Subgenital plate, ventral view; K. Genitalia, dorsal view; L. Right phallomere, right-ventral view. Scale bars: 1.0 cm (A – D); 0.2 cm (E – H); 0.1 cm (I – L).

Figure 8. Oothecae of Pseudoeupolyphaga and living individuals. Oothecae lateral view (A – C) and close-up view to show the serrations (D – F). A, D. P. vestis sp. nov.; B, E. P. spelunca sp. nov.; C, F. P. Pilosa; G, H. Male adults of P. spelunca in the laboratory; I. Male adults of P. vestis under the laboratory; J. Female adults of P. vestis under laboratory conditions; K. Male adults of P. menglianensis under the laboratory; L. Female adults of P. dauni under laboratory conditions (G – L by Yi-Ming Ren). Scale bars: 0.1 cm (A-F).