Xenorthrius beauforti Corporaal, 1949

Gerstmeier, Roland & Eberle, Jonas, 2010, Revision of the Indo-Australian checkered beetle genus Xenorthrius Gorham, 1892 (Coleoptera: Cleridae, Clerinae) 2584, Zootaxa 2584 (1), pp. 1-121 : 21

publication ID	https://doi.org/ 10.11646/zootaxa.2584.1.1
DOI	https://doi.org/10.5281/zenodo.10538391
persistent identifier	https://treatment.plazi.org/id/03F45644-012F-FFC1-6FD3-FF3CDB60B296
treatment provided by	Felipe
scientific name	Xenorthrius beauforti Corporaal, 1949
status

Treatment

( Figures 15 View FIGURE 15 and 63D View FIGURE 63 )

Xenorthrius beauforti Corporaal 1949b: 98 .

Xenorthrius reductenotatus Pic 1952: 4 n. syn.

Specimens examined: Holotype: Java: F.C. Drescher, G Tangkoeban Prahoe, 4000 – 5000 Voet, Preanger, Java, III 1934; Foto; ♂; J.B. Corporaal: Type: Holotype, Xenorthrius beauforti, 1948 (♂, ZMAN) .

Holotype ( X. reductenotatus ): Java: Java occident., Mont Gede, 4000 1896, H. Frühstorfer; reductenotatus n sp; Xenorthrius ; Museum Paris Coll. M. Pic (♂, MNHM); Xenorthrius reductenotatus n.syn.

Others: Java: F.C. Drescher, G Tangkoeban Prahoe, 4000–5000 Voet, Preanger, Java, VIII 1934; Coy FCD 20; Coll. Zoologisch ex. Museum Amsterdam; Xenorthrius beauforti J.J. Menier det 1983 ( MNHN).

Measurements: (3 specimens measured) Average total length: 9.0mm, range: 8.4–9.9mm, average elytral length: 6.0mm, average elytral width: 2.6mm, average pronotal length: 2.2mm, average pronotal width: 2.0mm, average head width: 1.9mm.

Head: Black; cranium vested with long setae, punctation relatively coarse; posterior part of clypeus dark red-brown to black, anterior margin slightly emarginate, vested with long setae, with distinct punctation; ventral part red-brown to black, smooth, except wrinkles behind the eyes; antennae red-brown, lighter than head capsule, A8 slightly dilated, A9 to A11 forming a distinct club, male antennae not reaching base of pronotum when laid back; gular sutures diverging apically, deeply sulcate proximal to gular sutures, gular process narrow, line-shaped.

Thorax: Average pronotal length:width ratio 1.1:1; pronotum dark red-brown to black, vested with yellowish setae, pronotal arch relatively broad, with distinct punctation, interstices larger than diameter of punctures, pronotum proper with coarse and dense punctation, punctation merging to longitudinal wrinkles; prosternum orange with microsculpture; mesosternum orange, densely vested with very fine whitish setae; metasternum yellow, sparsely vested with fine setae and sparsely punctured; anterior metasternal process with two strongly sclerotized, ventrally projecting edges; scutellum oval to round, slightly darker than surrounding elytra.

Elytra: Average length:width ratio 2.3:1; reddish basally, postmedian fascia black, not reaching elytral suture, apex sometimes darkened, subcutaneous structures visible through yellow areas, vested with short decumbent and longer erect setae, punctation relatively large, striae 1 and 2 obsolete behind middle, striae 3 reaching postmedian fascia, first distinct punctation in postmedian fascia in striae 4, all striae more or less indefinite behind postmedian fascia, interstices between and within striae smaller than one diameter of punctures, punctation rasp-like in humeral region, especially carinate laterally next to striae.

Legs: Yellow, tarsi light red-brown, tarsal pulvilli pale; metatibiae slightly bent distally, anterior and posterior face of each tibia carinate, carination red-brown, distinct, especially on metatibia.

Abdomen: Ventrites red-brown, punctation sparse and fine; lateral margins of male pygidium slightly converging, anteriorly flattened; male ventrite 6 narrow, emargination broadly U-shaped. Male genitalia ( Fig. 15 View FIGURE 15 ): Ventral sinus of tegmen basally narrowed; phallic plates broad, emarginate laterally before tip, tip roundish; spicular fork dividing into two branches after one quarter to one fifth of length.

Distribution: Java.

Seasonal occurrence: Collected from March to August.