Xenorthrius striatulus Gerstmeier & Eberle 2010, n. comb.
Creators: name: Gerstmeier, Roland
name: Eberle, Jonas
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Xenorthrius
Xenorthrius striatulus

description: Xenorthrius striatulus (Motschulsky, 1860), n. comb.   
(Figures 53 and 69F)  
 Orthrius striatulus Motschulsky 1860: 323; Reitter 1894: 44; Chobaut 1897: 241; Schenkling 1906: 269.   
 Orthrius particularis Pic 1926b: 6 n. comb., n. syn.   
 Unfortunately no type material of Orthrius striatulus was available for this study.   
 Specimens examined: Holotype: Korea: Corée; Orthrius; Type; Orthrius particularis, n sp; Type; Museum Paris, Coll. M. Pic (♂, MNHN); (X. particularis) n. syn.   
 Others: Far East of Russia: Amur, Speyer, Coll. Weber; Coll. S. Schenkling; Schenkling det. (SDEI). Amur; Coll. Kraatz; Opilus striatulus, Motsch; Kraatz det. (SDEI). Far East of Russia, S. Primorje reg., Laso dist., Valentin v., 18.VII.2003; Clerinae, Orthrius striatulus; (Motsch.), www.rusinsects.com (JSBC) Russia, Primorje, Oblatschnaja Mt., 700m 3.VIII.2006, St. Flossmann leg. (RGCM). Ussuri, Kasakewitsch, 1907 Korb; Opilo striatulus, Motsch; Orthrius striatulus, Motsch. Ussuri, Kasakewitsch, 1907 Korb; striatulus, Ussuri, Motsch. (NHMW). Ussuri, Kasakewitsch, 1907 Korb (NHMW).   
 Measurements: (8 specimens measured) Average total length: 9.9mm, range: 9.2–10.5mm, average elytral length: 7.1mm, average elytral width: 2.8mm, average pronotal length: 1.9mm, average pronotal width: 1.9mm, average head width: 1.8mm.   
 Head: Red-brown, cranium vested with longer setae, with distinct punctation, interstices not exceeding one diameter of punctures; posterior part of clypeus red-brown, relatively narrow, with large punctation and a long setae laterally; ventral part wrinkled, smooth centrally; antennae red-brown, antennomeres gradually decreasing in length from A3 towards A8, A9 to A11 forming a distinct club, antennae not reaching base of pronotum when laid back; gular sutures parallel, gular process broad.   
 Thorax: Average pronotal length:width ratio 1.0:1; pronotum red-brown, vested with short yellowish setae, pronotal arch narrow, interstices smaller than one diameter of punctures, pronotum proper punctured slightly denser, punctation of pronotum indistinct in some of the observed specimen; prosternum red-brown, smooth, mesosternum red-brown; metasternum darker, punctation fine, interstices about 3 diameters of punctures; scutellum circular, red-brown.   
 Elytra: Average length:width ratio 2.5:1; basal two thirds surrounded red-brown, one broad red-brown postmedian fascia, circular subcutaneous structures visible, vested with very short yellowish setae, punctation weak and irregularly in most specimens, striae 1 and 2 obsolete behind basal quarter of elytra, striae 2 to 6 becoming continuously longer until striae 6 reaches apical margin of postmedian fascia, striae 7 and 8 shorter, striae 9 and 10 with weak punctation, interstices between striae two to three diameters of punctures, interstices within striae about one half diameter of punctures; punctation never rasp-like, carination absent.   
 Legs: Yellow, distal part of femora indefinitely darkened, tarsal pulvilli pale; metatibiae more or less straight, tibiae not carinated.   
 Abdomen: Ventrites dark red-brown, with weak and sparse punctation; male pygidium oval, arms long; apical margin of male and female ventrite 5 slightly emarginate in a broad V-shape; male ventrite 6 with distinct broad U-shaped emargination. Male genitalia (Fig. 53): Parameres apically narrow, sinus with broad and deep U-shaped emargination; phallic plates broad; spicular fork dividing into two branches after one half of length.   
 Distribution: Korea, Far East of Russia.   
 Seasonal occurrence: Collected from July to August.
description: Published as part of Gerstmeier, Roland & Eberle, Jonas, 2010, Revision of the Indo-Australian checkered beetle genus Xenorthrius Gorham, 1892 (Coleoptera: Cleridae, Clerinae) 2584, pp. 1-121 in Zootaxa 2584 (1) on page 91, DOI: 10.11646/zootaxa.2584.1.1, http://zenodo.org/record/10094247