Rhabdoblatta maculosa Guo et Che 2024, sp. n.
Creators: name: Guo, Lin
name: Zhang, Zhi-Yu
name: Cai, Jin-Zhuo
name: Wang, Zong-Qing
name: Che, Yan-Li
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Blaberidae
Rhabdoblatta
Rhabdoblatta maculosa

description: Rhabdoblatta maculosa Guo et Che, sp. n.
Figs 2A–O
Type material. Holotype. Male; Guangdong Prov., Zhongshan City, Longtang Villa; 28 Apr. 2018; Ke-Liang Wu leg. Paratypes. 1 female; same collection data as holotype; 2 males; Guangdong Prov., Zhongshan City, Longtang Villa; 5 May 2018; Ke-Liang Wu leg.
Differential diagnosis. The male of this species resambles R. elegans Anisyutkin, 2000, but can be distinguished from R. elegans: 1) the former has translucent yellow-white maculae scattered along costal field and radial field of the tegmina, but the latter has no maculae; 2) the former has no stripes on the posterior margin of each sternum, the latter has blackish-brown stripes; 3) in the former the posterior margin of subgenital plate is convexly arched, in the latter the posterior margin of subgenital plate is almost truncate.
Description. Measurements (mm). Overall length: male 35.9–38.8, female 42.3; pronotum length × width: male 7.5–8.0 × 8.9–9.8, female 8.8 × 11.0; tegmen length × width: male 31.1–34.2 × 9.2–10.5, female 36.1 × 11.1.
Male. Head black except yellowish white ocelli, labrum and clypeus yellowish brown; maxillary palps dark brown; antennae with about basal 14 segments black, the rest dark brown (Fig. 2B). Pronotum dark brown with lateral areas varying from yellowish brown (sparse spots also present) to nearly dark (Fig. 2E, F). Tegmina dark brown with translucent yellow-white maculae scattered along costal field and radial field. Hind wings with costal field, radial field, mediocubital field dark brown, and anal field brown (Fig. 2I, J). Legs reddish brown, the caudal femora and tibiae and tarsi dark. Abdominal terga and sterna reddish brown. Supra-anal plate and subgenital plate yellowish brown, cerci and styli dark brown (Fig. 2B).
Vertex slightly exposed (Fig. 2B). Distance between eyes approximately equal to the interocellar width, narrower than the space between antennal sockets (Fig. 2B). Pronotum with anterior margin gently arc-shaped, lateral margins convexly rounded, middle of posterior margin obtusely produced, widest about the middle (Fig. 2E, F). Tegmina and wings fully developed extending well beyond end of abdomen, the former with thickened subcosta vein. Hind wings shallowly concave at apex; venation distinct, all main veins (Sc, R, and CuP) present (Fig. 2A, B, I, J). Anteroventral margin of front femur Type B 2 (Fig. 2G). Hind metatarsus nearly equal to the remaining segments combined, with two equal rows of ventral spines; pulvilli present on all tarsomeres apically; tarsal claws symmetrical and unspecialized, with large arolia (Fig. 2H). Abdominal tergites unspecialized. Supraanal plate symmetrical with small bristles; the middle of the hind margin slightly concave with a cluster of long bristles, lateral margins slightly arc-shaped. Paraprocts asymmetrical, left paraproct with a finger-like bulge bending inward. Cerci distinctly segmented and densely covered with bristles (Fig. 2K). Subgenital plate asymmetrical with small bristles near the posterior margin, the base of the inner plate bifurcated, styli flat, apically rounded (Fig. 2O).
Male genitalia. Right phallomere with caudal part of sclerite R1T nearly rectangular and comparatively narrow; end of the sclerite R2 rounded; R3 interlinked with R 5 in caudal part; R4 existed independently (Fig. 2L). The basal part of sclerite L2D slender; the apical part irregular, with chaetae-covered membrane (Fig. 2M). Sclerite L3 hooked and deeply bent, outer-lateral margin smooth with low carina; inner margin smooth, with a tooth-shaped convexity at apex (Fig. 2N).
Female. There is a sexual dimorphism existed in this species. Females slightly larger than males and have different body color, body yellowish brown. Tegmina without translucent yellow-white maculae. Head to abdomen reddish brown (Fig. 2C, D).
Etymology. The specific epithet is derived from Latin word “ maculosus”, which refers to the maculae on the tegmina.
description: Published as part of Guo, Lin, Zhang, Zhi-Yu, Cai, Jin-Zhuo, Wang, Zong-Qing & Che, Yan-Li, 2024, Establishment of three new species of Rhabdoblatta Kirby, 1903 (Blattodea, Blaberidae, Epilamprinae) from China on the basis of molecular and morphological data, pp. 545-558 in Zootaxa 5463 (4) on pages 550-552, DOI: 10.11646/zootaxa.5463.4.5, http://zenodo.org/record/11612335