Pseudoeupolyphaga flava Han, Che & Wang, 2024

Han, Wei, Che, Yan-Li, Zhang, Pei-Jun & Wang, Zong-Qing, 2024, New species of Eupolyphaga Chopard, 1929 and Pseudoeupolyphaga Qiu & Che, 2024 (Blattodea, Corydioidea, Corydiinae), with notes on their female genitalia, ZooKeys 1211, pp. 151-191 : 151-191

Pseudoeupolyphaga flava Han, Che & Wang sp. nov.

Fig. 7 A – L

Type material.

Holotype: China • male; Yunnan Province, Lijiang City, Yongsheng County, Liude Village , G 353 roadside in dry soil; 9 Jul. 2021; Lu Qiu, Hao Xu leg. Paratypes: China • 2 males, 1 female & 7 nymphs, same collection data as holotype .

Diagnosis.

This species can be easily distinguished from others by its bright yellowish abdomen, present in both males and females. In addition, the males of this species have large patches in the middle of their tegmina, which is distinctly different from other congeneric species.

Description.

Holotype. Measurements (mm). Overall length (including tegmen): 25.58; body length: 18.24; body width (tegmina not included): 9.21; tegmen length × width: 21.41 × 7.40; pronotum length × width: 6.95 × 3.76.

Coloration. Body mostly yellow (Fig. 7 A, B ). Pronotum dark yellowish brown to reddish brown, anterior margin white, with short yellow setae (Fig. 7 E ). Tegmina pale gray, with densely darkish brown maculae. Hind wings nearly transparent, also with densely pale-colored maculae (Fig. 7 A, B ). Head black. Ocelli white. Antennae brownish yellow. Forehead black. Ante-clypeus white, post-clypeus yellowish brown. Labrum pale yellowish brown (Fig. 7 G ). Legs yellow, tibia, tarsi, and ante-tarsi yellowish brown. Pulvilli and arolia white. Abdomen yellow, distal part slightly darker in color (Fig. 7 B ).

Body. Head: Sub-rounded, hidden under pronotum. Eyes developed, ocelli bulging round and protruded. Interocular space narrower than the distance between ocelli, the latter narrower than the distance between antennal sockets. Ocelli ridge indistinct, with a row of setae on the upper edge. Clypeus developed (Fig. 7 G ). Pronotum: Transverse oval, widest near the hind margin. Surface with short setae. Anterior whitish margin narrow, clearly demarcated from the yellowish-brown area, with symmetrical dark protrusions in the center (Fig. 7 E ). Tegmina and hind wings: Maculae dense and of different size. A large fused brown macula located in the center (Fig. 7 A ). Legs: Slender, front femur type C 1. Pulvilli and arolia present (Fig. 7 B ). Abdomen: Supra-anal plate transverse, pubescent, posterior margin slightly protruded medially. Paraprocts simple. Cerci long. Subgenital plate with short setae, hind margin slightly concave medially. Left stylus shorter than the right one (Fig. 7 I, J ). Genitalia: Right phallomere bigger than the left phallomere. L 1 basally prolonged, two hind lobes weakly sclerotized. L 2 arching, curved. Genital hook (L 3) short and robust, the hook small. L 4 M broadly lamellate; pda subtriangular, paa broad. L 5 subelliptic. L 8 basally dilated, tip with a protrusion. Right phallomere long. R 1 M stout. R 1 L banded, elongate. R 2 divided into two chunks, the basal one more rounded, the upper one with a flatter anterior margin and a protruded prolonged right posterior lateral angle. R 3 thin, convex, and irregular (Fig. 7 K, L ).

Male paratypes. Similar to the holotype.

Female paratype. Body length: 20.20 mm; body width: 13.00 mm; pronotum length × width: 10.61 × 6.53 mm.

Coloration. Terga yellowish brown to reddish brown, margins with yellowish brown setae (Fig. 7 C ). Sterna yellow, the distal part slightly darker (Fig. 7 D ). Head black. Ocelli white. Ante-clypeus sub-transparent, pale gray. Post-clypeus blackish brown. Basal part of labrum pale gray (Fig. 7 H ). Legs yellow, tibia nearly black. Spines dark yellowish brown to black (Fig. 7 C, D ).

Body. The widest point of pronotum near the hind margin, anterior whitish margin indistinct (Fig. 7 F ). Ocelli indistinct, degraded to two small white spots. Interocular space bigger than the distance between ocelli, and almost equal to the distance between antennal sockets (Fig. 7 H ). Front femur type C 1. Arolia and pulvilli absent. Supra-anal plate densely covered with long yellowish brown setae, posterior margin slightly convex, slightly emarginated medially. Cerci short and robust, not exceeding posterior margin of supra-anal plate. Posterior margin of subgenital plate protruded, emarginated medially (Suppl. material 1: fig. S 1 A).

Nymph. Similar to the female.

Ootheca. Unknown.

Etymology.

The species epithet is derived from the Latin word flavus, referring to the yellowish abdomen of both males and females.

Remark.

The interspecific genetic distance between this species and the other species within this genus ranges from 10.62 % to 20.39 %, providing support for the classification of this species as a novel taxon.

Figures

Figure 7. Pseudoeupolyphaga flava Han, Che & Wang, 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).