Taula de continguts: :: Library Catalog

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Autors principals:	Luo, Xin-Xing, Qiu, Meng-Yu, Cai, Ting-Ting, Wang, Zong-Qing, Che, Yan-Li
Format:	Recurso digital
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Publicat:	Zenodo 2026
Matèries:	Biodiversity Taxonomy Animalia Arthropoda Insecta Blattodea Blattidae Unihamus Unihamus elegans
Accés en línia:	https://doi.org/10.5281/zenodo.19616457
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Taula de continguts:

Unihamus elegans (Hanitsch, 1927)Figs 1, 3, 7 A, B, 8 A, E, I, 9 APeriplaneta elegans Hanitsch, 1927: 25 (holotype: &male;, Vietnam; OUMNH; England); Bey-Bienko 1957: 896; Princis 1966: 445.Unihamus elegans: Luo et al. 2025: 844.Material examined.Holotype • &male; (OUM, TYPE ENT-ORTH 318) Vietnam: “ &male; TYPE. Periplaneta elegans, Hanitsch. J. Siam Soc., Vol. vii, 1927, p. 25, fig. ”; “ Dran, Langbian, S. Annam, 3,000 '. Apl. May 1918. CB. Kloss. Coll. ”, “ Periplaneta elegans n. sp. ”; “ TYPE ORTH: 318 Periplaneta elegans Hanitsch / HOPE DEPT. OXFORD ”.China • 2 &male;&male;, 1 &female;; Yunnan, Butterfly Valley, Maandi village, Jinping County; 14–16. V. 2015; Jianyue Qiu leg; SWU -B-BL-080301 to 080303 • 2 &female;&female;; Yunnan, Daweishan Mountain, Pingbian County; 16–17. V. 2015; Chenglong Ren & Jianyue Qiu leg.; SWU -B-BL-080304 to 080305.Diagnosis.Vertex exposed. Pronotum subelliptical, widest point posterior to midpoint. Posterior margin of metanotum mesally produced. Tegmina and wings well developed. Posterior branch of R not reaching end of tegmina. Hind metatarsus longer than remaining tarsomeres combined. First abdominal tergite with visible gland. Surface of supra-anal plate with small, sparse spines; median of hind margin incised; middle part of ventral surface with transverse projection, covered with small spines. Hind margin of subgenital plate slightly concave. L 1 weakly sclerotized. L 2 with long ventral spine pointing inward. L 3 not bifurcate. L 4 C lanceolate, with blade-like process. Left margin of R 1 H extending into two spines; ventral surface with a spine. Right ventral surface of R 1 G with a finger-like spine and another long spine.This species can be easily distinguished from congeners by the following characters: 1) ventral surface of supra-anal plate with transverse, striate projection covered with small spines (Fig. 3 F); 2) acute blade-like process present near basal right margin of L 4 C (Figs 3 H, 7 A); 3) L 4 C lanceolate and not curved (differs from U. flavus and U. concavus) (Figs 4 H, 7 A); 4) R 1 H broad (differs from U. longispinus) (Figs 3 H, 7 B).Redescription.Colouration. Body black, except: ocelli white, antennae brown, tegmina reddish brown, tarsi blackish brown.Male. Total length: 27.2–27.5 mm; body length: 18.5 mm; pronotum length × width: 4.8–5.2 × 5.7–6.1 mm; tegmina length × width: 22.0–22.3 × 6.6–6.7 mm. Head and thorax. Vertex exposed; interocular space almost equal to interocellar space, shorter than interantennal space (Fig. 3 B). Pronotum subelliptical, with anterior margin nearly straight and hind margin convex, surface smooth, widest point posterior to midpoint (Fig. 3 A). Posterior margin of metanotum mesally produced; posterior-lateral angles with symmetrical projections (Fig. 8 A). Tegmina and wings well developed, surpassing tip of abdomen (Figs 1 D, 1 E, 3 D, 3 E). Tegmina ScP slightly thickened; posterior branch of R not reaching end of tegmina (Fig. 3 D). Front femur of type A 2 (Fig. 3 C). Hind metatarsus longer than remaining tarsomeres combined; metatarsi with two rows of spinules ventrally and one spinule on each side of pulvillus. Pulvilli present; claws symmetrical and unspecialized; arolium medium-sized. Abdomen. First abdominal tergite gland with downward-pointing setae (Fig. 8 A). Lateral margin of supra-anal plate contracted inward near distal part and less sclerotized at margin; surface with small, sparse spines; middle of hind margin incised and divided into two subobtusely triangular lobules; middle part of ventral surface with transverse projection, covered with small spines (Fig. 3 F). Paraprocts long and strip-like. Cerci strong and symmetrical. Subgenital plate overall nearly square; hind margin of interstylar slightly concave (Fig. 3 G). Genitalia (Figs 3 H, 3 I, 7 A, 7 B, 8 E). L 1 weakly sclerotized, bearing pubescence (Fig. 7 A). L 2 irregular, with long, ventral, inward-pointing spine (Fig. 7 A). L 3 unciform and well sclerotized, not bifurcate (Figs 7 A, 8 E). L 4 C lanceolate, with distally acute, blade-like process near inner basal margin (Fig. 7 A). R 1 H broad and irregular; left margin extending into two spines; ventral surface with a spine (Fig. 7 B). R 1 G well sclerotized; right side of ventral surface with a finger-like spine and another long spine (Figs 3 I, 7 B).Female (Figs 1 F, 1 G, 8 I, 9 A). Body broader than male. Total length: 23.1–28.1 mm; body length: 20.5–25.0 mm; pronotum length × width: 6.0–6.4 × 7.4–8.0 mm; tegmina length × width: 17.7–23.2 × 6.3–8.1 mm. Head and thorax. Same as in male. Abdomen. Hind margin of tergum X with median invagination and a membrane line inside (Fig. 9 A). Genitalia (Fig. 9 A). First valve sclerotized, with small, dense punctures, and basal part with microtrichia; left and right valve asymmetrical; right margin of left valve with a rhombic projection. First valvifer broad and slightly curved. Second valve strip-like. Third valve large and wrapping around second valve. Posterior lobes of valvifer II less sclerotized and outer margin connected to irregular laterosternite IX. Paratergites long, strip-like, and slender. Anterior arch nearly rectangular and outer and hind margin with small, dense spines. Spermathecal plate somewhat fan-shaped, connected to basivalvula by membrane. Spermathecal opening located at middle of basivalvula. Spermatheca branched into a leading duct and branching duct, with duct short and end capsule rod-shaped (Fig. 8 I). Basivalvulae (bsv.) nearly rectangular, asymmetrical, with microtrichia. Laterosternal shelf (ltst. sh.) symmetrical, with sparse punctures.Distribution.Vietnam (Lam Dong), China (Yunnan).Remarks.Unihamus elegans (Hanitsch, 1927) was first described from Da lat, Lam Dong Province, Vietnam, and was subsequently recorded from Baoshan, Yunnan Province, China (Bey-Bienko 1957). Our specimens were collected in Jinping and Pingbian counties, Yunnan Province, which borders Vietnam; these specimens correspond to Hanitsch’s (1927) original description and to photographs of the holotype.

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