Priscibrumus disjunctus Canepari, 1997

Li, Wenjing, Chen, Bingxu, Huo, Lizhi, Chen, Xiaosheng & Wang, Xingmin, 2020, New records and checklist of Chilocorini (Coleoptera: Coccinellidae) from China, Biodiversity Data Journal 8, pp. 51092-51092 : 51092

Priscibrumus disjunctus Canepari, 1997

Priscibrumus disjunctus Canepari, 1997 in Canepari 1997: 45.

Materials

Type status: Holotype. Occurrence: recordedBy: Wenjing Li; individualCount: 2; sex: 1 male, 1 female; lifeStage: adult; Taxon: scientificName: Priscibrumusdisjunctus; Location: country: China; stateProvince: Tibet; locality: Jilong County ; verbatimElevation: 2900 m; verbatimCoordinates: 28°18.05'N; 85°23.12'E; georeferenceProtocol: label; Identification: identifiedBy: Wenjing Li; dateIdentified: 2017; Event: samplingProtocol: sweeping; eventDate: 28/08/1984; Record Level: basisOfRecord: PreservedSpecimen

Description

TL: 3.75-4.10 mm, TW: 2.80-2.91 mm, TH: 1.83-2.12 mm, TL/TW: 1.31-1.34, PL/PW: 0.45-0.47, EL/EW: 1.07-1.10.

Body oval, moderately convex. Head black, densely covered with short, greyish pubescence. Mouthparts and antenna black. Pronotum black, densely covered with short, greyish pubescence. Scutellum black. Elytra reddish-brown, with two pairs of broadly black stripes: outer stripes approximately 2/5 width of elytra, 3/4 length of elytra; inner stripes situated on suture, almost as long as elytra, distinctly broadening at base and weakly broadening at apex, densely covered with extremely short, greyish pubescence (Fig. 1 a-c). Underside black except elytral epipleura brownish-yellow, densely covered with short, greyish pubescence. Abdominal postcoxal lines incomplete, arcuate. Posterior margin of male abdominal ventrite 5 slightly emarginate at middle and of ventrite 6 distinctly emarginate (Fig. 1 d).

Male genitalia: penis slender, penis capsule with short outer and inner arm, apex of penis truncate with membranous appendage (Fig. 1 e-f). Tegmen stout, penis guide narrow at base, parallel along basal 1/3, after that, gradually broadening to basal 2/3, then narrowing to apex in ventral view; penis guide in lateral view, widest near base, gradually narrowing to apex; parameres distinctly longer than penis guide with dense short setae on the inner sides and distal end with a group of short setae in lateral view (Fig. 1 g-h).

Female genitalia: coxites distinctly elongated. Spermatheca approximately C-shaped, cornu without appendage.

Diagnosis

This species can be distinguished from other species of Priscibrumus by the following combination of characters: elytra reddish-brown, with two pair of broadly black stripes, inner stripes situated on suture, almost as long as elytra; parameres distinctly longer than penis guide.

Distribution

Nepal ( Canepari 1997) and Tibet, China (present study) (Fig. 4 ).

Figures

Figure 1. Priscibrumus disjunctus Canepari, 1997. a. dorsal view; b. lateral view; c. frontal view; d. abdomen; e. penis; f. apex of penis; g. tegmen, lateral view; h. tegmen, ventral view. Scale bars: 0.1 mm.

Figure 4. Distribution map. (▲) Priscibrumus disjunctus Canepari, 1997; (●) Priscibrumus uropygialis (Mulsant, 1853); (○) Brumus octosignatus (Gebler, 1830).