Hemicrepidius (Miwacrepidius) rubriventris Han and Park, sp. nov.
Creators: name: Han, Taeman
name: Lee, Youngbo
name: Kim, Namjung
name: Park, Sangwook
name: Suzuki, Wataru
name: Lee, Seunghwan
name: Park, Haechul
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Hemicrepidius
Hemicrepidius rubriventris

description: Hemicrepidius (Miwacrepidius) rubriventris Han and Park, sp. nov.
(Figs. 1A–D; 2A–R; 3A–B)
Specimens examined. Holotype: female, Mt. Yyeonin, Seungan-ri, Gapyeong-gun, Gyeonggi-do, Korea. 9. VII. 2011. Sangwook Park, DNA 3292 [NAAS]. Paratypes: female, Mt. Gariwang, Jeongsun, Gangwon-do, Korea. 2. VIII. 2012. Sangwook Park, DNA 3443 [NAAS]; female, Mt. Gariwang, Jeongsun, Gangwon-do, Korea. 16. VIII. 2012. Sangwook Park, DNA 3442 [NAAS].
Description. Female holotype (Fig. 1A–C) 17.6 mm long, 4.8 mm wide (paratypes: 17.8–19.9 mm long, 4.8– 5.7 mm wide). Body (Fig. 1A–C) fusiform, robust, convex; color bicolor, strongly shiny black with rims of pronotum, anterior half of head, almost of scutellum, elytral humeri, elytral sulture, elytral lateral sides including epimera reddish brown to more or less darker, ventral surface more bright reddish brown excepting median part of prosternum, antennae dusky reddish brown, but anterior serrations from 3rd to 10th blackish (Fig. 1D), legs brown; pubescence short, thin, sub-recumbent, yellowish brown hairs wholly covered, rarely blackish hairs bearing on head and pronotum. Head (Fig. 2 A) flat between eyes, with a shallow triangular impression; frontal margin round, distinctly carinate, slightly expanded in median, declivous downwardly before eyes; punctures (Fig. 2 B) circular, umbilicate, rather small, but larger than those on pronotum; intervals almost wider than diameter of punctures; surface smooth; frontal groove (Fig. 2 G) transversely excavated, slightly narrow, declivous medially to labrum; labrum large, convex, semi-circular with rather long setae anteriorly; mandibles (Fig. 2 G) bidentate; maxillary palpi axe shape. Antennae (Fig. 1D; 2H) robust, short, reaching to base of hind angles of pronotum, from 3rd to 10th broad and strongly serrated; 1st robust, sub-elliptical; 2nd smallest, obconic, 1.33 times as wide as long; 3rd 1.14 times as long as wide, 2.6 times as long as 2nd; 4th 1.02 times as long as wide, sub-equal in length to 3rd (20:19.5); each antennomere becoming gradually longer, narrower to apical; 11th cylindrical, longest, 4.37 times as long as wide (cat. from 2nd to 11th = 7.5/10, 19.5/17, 20/19.5, 20/20, 20/19.5, 21/18, 22/17, 23/15, 21/13, 35/8). Pronotum (Fig. 1A) sub-quadrate, convex, 1.20 times as long as wide, widest after middle, with median longitudinal smooth line weakly developed; punctures (Fig. 2 C, D) simple, sub-circular, sparse, becoming gradually larger, sub-elliptical laterally, with a porosity pore forming several minute pores (Fig. 2 E), intervals about 1.5~3.0 times wider than diameter of punctures; surface smooth; anterior margin nearly straight, clearly narrower than middle; anterior angles simple, elongate; lateral margins entirely, finely carinate, wholly visible at dorsal view, from widest portion distinctly convergent to anterior, but gently, widely sinuate to posterior; hind angles (Fig. 2 F) broad at base, rather elongate, divergent posteriorly, with strongly elevated carination extending from base to apex; posterior margin (Fig. 2 F) with distinct incisures near base of hind angles, with a distinct basal notch in front of scutellum. Prosternum slightly bent at median (Fig. 1B), with simple punctures more or less larger than those on pronotum, sparse, and then umbilicated, denser, larger laterally; anterior collar a little longer than apex of hypomera, bent antero-inferiorly, round, well carinate, surface almost smooth, with punctures large, sub-ocellate; posterior process (Fig. 2 M) flat between procoxal cavities, elongate, narrowing to apex, straightly extending to apex, then slightly convex at median, with an obvious longitudinal furrow extending near apex on each lateral sides in lateral view (Fig. 2 N); procoxal cavities (Fig. 2 L) widely open posteriorly; pronotosternal sutures (Fig. 2 K) double-like from base to anterior, gradually narrower anteriorly; hypomeron having rather shorter pubescence than those of prosternum, with large, umbilicate punctures, but gradually denser to anterior, posterior margin (Fig. 2 L) nearly straight, but emarginated near procoxal cavities. Scutellum (Fig. 2 I) tongue shaped, 1.28 times as long as wide, widest at middle; anterior margin truncate; lateral sides gradually broad medially; posterior margin round; dorsal disc with strongly ridged median longitudinal elevation forming triangular incline at apex (Fig. 2 J); punctures on disc (Fig. 2 I) minute, sparse, with dense hairs. Mesocoxal cavities (Fig. 2 O) broadly connected with mesepimeron and narrowly with mesepisternum; mesosternal groove (Fig. 2 P) broad, wider than mesocoxae, posterior margin depressed. Metasternum flat at median; median longitudinal suture fine, invisible near anterior margin; hind coxal plates (Fig. 2 Q) widest at insertion of trochanter, outer-margin slightly convergent laterally. Legs slender; hind femur sub-equal in length to hind tibia (98:96); hind tarsomeres gradually decreased to 4th (cat. from 1st to 5th = 25, 12, 9, 7, 25); ventro-apical lobes forming from 1st to 3th, but 1st small, distinct, 2nd largely expanded reaching to a half of 3rd, 3rd mostly expanded, almost covered 4th one ventrally, 4th simple (Fig. 2 R); claws simple. Elytra fusiform, 2.18 times as long as wide, convex, sub-equal wide with pronotum (4.8:4.9), widest from anterior one fifth, then gradually convergent posteriorly; base of elytral striae distinctly convex; sutural line clearly raised at base (Fig. 2 J); striae distinct, fine; strial intervals feebly convex at base, then flat, weakly coarse, with minute, sparse punctures. Abdomen with each margin of visual sternite finely carinate; sternite 7 semi-elliptical, 1.64 times as wide as long. Reproductive organs: ovipositor sub-triangular, but somewhat elongate, cylindrical from middle, with small styli; vagina elongate; uterus (Fig. 4 A–C) enlarged anteriorly, with two large ballon-like collecterial glands bearing from anterior, with a pair sclerotised bands formed by three triangular plates, respectively; bursa copulatrix (Fi.g 4A–C) balloon-like, round, sub-equal in length and width, with two short, swollen accessory glands bearing from ventral base, tubular extension very elongate, slender, bearing from ahead of anterior.
Male. Unknown.
Ecology. Unknown.
Distribution. Republic of Korea.
Ethymology. This new species was named H. (M.) rubriventris based on its reddish brown ventral surface.
Reference specimens. Hemicrepidius (Miwacrepidius) subcyaneus (Motschulsky 1866): male and female, Sasago-tôge, Yamato-mura, Yamanashi Prefecture, Honshu, Japan. 2. VIII. 1987. H. Yamazaki leg., identified by W. Suzuki, DNA 3650 and 3651; 2 males and female, ditto, 21. VI. 1987. H. Yamazaki leg., identified by W. Suzuki, DNA 3652–3654; female, Occhisawa, Ueno-mura, Tano-gun, Gunma Pref., Honshu, Japan. 30. VI. 2013. T. Horiguchi leg., identified by W. Suzuki, DNA 3682.
description: Published as part of Han, Taeman, Lee, Youngbo, Kim, Namjung, Park, Sangwook, Suzuki, Wataru, Lee, Seunghwan & Park, Haechul, 2013, A new species, Hemicrepidius (Miwacrepidius) rubriventris sp. nov. (Coleoptera, Elateridae, Denticollinae) from Republic of Korea, pp. 379-387 in Zootaxa 3745 (3) on pages 382-386, DOI: 10.11646/zootaxa.3745.3.5, http://zenodo.org/record/221287