Ornebius Guérin-Méneville, 1844

Kim, Taewoo, 2011, A Taxonomic Study of the Scaly Cricket Family Mogoplistidae (Orthoptera: Ensifera: Grylloidea) in Korea, Zootaxa 2928, pp. 41-48 : 43-44

Genus Ornebius Guérin-Méneville, 1844

Type species: Ornebius xanthopterus Guérin-Méneville, 1844

Diagnosis. Male with pronotum moderately protruded posteriorly; tegmen visible, mostly exposed from pronotum, color variable and remarkable; maxillary palpus moderately long, apical segment triangularly widened; male paraproct with elongate digital process directed caudodorsally; ovipositor straight, needle-shaped.

2. Ornebius bimaculatus ( Shiraki, 1930) ( Table 2 , Figs. 2 , 5 , 8 , 11 , 14 , 17 )

Liphoplus bimaculatus Shiraki, 1930 . Insecta Matsumurana, 4(4): 191, Fig. 5 . “ Formosa: Kwashoto.” Lectotype 3 in National Taiwan University, Taipei, Taiwan.

Material examined (18 specimens). <Jeju-do> 13, Marado Island Namjeju-gun, 24 Sep 2008, Kim Hwa-Jung; 6311Ƥ, ibid., 16 Oct 2008, Kim Tae-Woo.

Description. General. Body coloration light gray, head and pronotum orange; tegmina short, orange yellow; cercal end whitish with subapical dark annulation. Head. Head depressed, longer than height; eyes small, widely separated, interocular distance four times wider than horizontal diameter of an eye; antennal scape as long as wide, as wide as horizontal diameter of an eye; fastigium of vertex as wide as horizontal diameter of an antennal socket; clypeus protruding anteriorly, higher than wide in anterior view, without median longitudinal furrow; maxillary palpus with five segments, the ratio of segments being 1:1.2:2.4:2:2.4 from base to apex. Thorax. Pronotum 1.5 times longer than wide in dorsal view, 1.7 times longer than head, 2.5 times longer than tegmina; anterior margin truncated, posterior margin widely rounded, wider than anterior one; female pronotum as long as wide in dorsal view, 1.2 times longer than head. Wings. Tegmina micropterous, not exceeding one-quarter of abdomen, posterior margin widely round; tegminal base covered by posterior margin of pronotum; posterior outer margin of tegmen with a black spot; right tegmen with two harp veins, two chordal veins; speculum ovate, not divided, 1.2 times wider than long; female lacks tegmina and wings. Legs. Fore tibia with a small inner tympanum; hind femur three times longer than middle femur; middle tarsomeres large, rounded, depressed; hind tibiae with numerous small spinules on inner and outer dorsal margins; largest inner apical spur as long as a half of basitarsus; hind basitarsus two times longer than remaining two tarsomeres combined length, with small spinules on both sides; inner apical spur as long as last tarsomere. Abdomen. Cerci 1.5 times longer than hind femur, with white and black terminal annulation; male supra-anal plate with smoothly convex hind margin, with short bristle developed on dorsal area; paraproct with elongate goose-neck shaped process, smooth without hairs; female subgenital plate with widely round hind margin, apex deeply incised, deeper than width. Ovipositor. Ovipositor shiny brown, straight, needleshaped, as long as hind femora; apex subapically swollen, without serration; dorsal valves with 5~6 ventral bristles. Distribution. Marado Island, Korea (new record), Japan, China, Taiwan, and Hawaii (introduced; Otte, 1994).

3. Ornebius kanetataki ( Matsumura, 1904) ( Table 2 , Figs. 3 , 6 , 9 , 12 , 15 , 18 )

Ectatoderus kanetataki Matsumura, 1904 . Thousand Insects of Japan, 1: 131, pl. 6, Fig. 1 . “ Japan: Mt. Ibuki.” Lectotype 3 in Hokkaido University, Sapporo, Japan.

Liphoplus kanetaki [misspelling]: Ju, 1969: 20.

Ornebius kanetataki: Choo and Choi, 1983: 49 ; Kwon and Huh, 1994: 50; Park and Paik, 1995: 293; Kwon et al. 1996: 104; Storozhenko and Paik, 2007: 119; Paik et al. 2009: 33; Paek et al. 2010: 35; Paik et al. 2010: 41.

Material examined (19 specimens). <Gyeonggi-do> 1Ƥ, Mt. Bukhansan Eupyeong-gu Seoul, 3 Oct 2003, Kim Tae-Woo; 13, Sindo Island Bukdo-myeon Ongjin-gun Incheon, 26 Aug–2 Sep 2007 (rearing), Kim Tae-Woo; <Chungcheongnam-do> 1Ƥ, Sambong Beach Anmyeondo Island Taean, 8 Sep 2005, Kim Tae-Woo; <Gyeongsangnam-do> 1Ƥ, Gadeok-ri Geumseong-myeon Hadong-gun, 19 Sep 1998, An NY; 1Ƥ, ibid., 27 Sep 2003, Park Jung-Seok; 13, Baechun-ri Chukdong-myeon Sacheon, 18 Sep 2010, Paik Yu-Hyeon; <Jeollanam-do> 1Ƥ, Seomjingang Riverbed Toji-myeon Gurye-gun, 29 Sep 2001, Kim Tae-Woo; 2Ƥ, Hongdo Island Heuksan-myeon Sinan-gun, 7 Oct 1999, An Seung-Lak; <Jeju-do> 13, Jungmun Seoguipo-si, 16 Jan 2003, Kim Tae-Woo; 131Ƥ, Jejudo Island, 29 Oct 2007, Seong Ki-Soo; 13 (sweeping), Wolchulbong, 5 Oct 2003, Park Sang-Hyeon; 333Ƥ, Dongbaekdongsan Seonheul-ri Jocheon-eup Bukjeju-gun, 16 Oct 2008, Kim Tae-Woo.

Description. General. Body grayish brown; tegmina short, dark, shiny gray. Head. Head depressed, longer than height; eyes small, widely separated, interocular distance four times wider than horizontal diameter of one eye; antennal scape as long as wide, as wide as horizontal diameter of an antennal socket; fastigium of vertex 1.2 times wider than horizontal diameter of an antennal socket; clypeus protruding anteriorly, higher than wide in anterior view, with a median longitudinal furrow; maxillary palpus with five segments, the ratio of segments being 1:1.2:2.4:2:2 from base to apex. Thorax. Pronotum 1.5 times longer than wide in dorsal view, two times longer than head, 1.2 times longer than tegmen; anterior margin truncated narrowly, but posterior margin widely rounded, wider than anterior one; whitish rim on hind margin; female pronotum as long as wide in dorsal view, 1.2 times longer than head. Wings. Tegmina micropterous, not exceeding one-half of abdomen, posterior margin rounded; tegminal base covered by posterior margin of pronotum; color mostly dark brown, only basal area transparent. Right tegmen with two harp veins, two chordal veins; speculum trapezoidal, not divided, 1.5 times wider than long; female lacks tegmina and wings. Legs. Fore tibia with a small inner tympanum; hind femur three times longer than middle femur; middle tarsomeres small, rounded, depressed; hind tibia with numerous small spinules on inner and outer sides; largest inner apical spur as long as one-third of basitarsus; hind basitarsus 2.2 times longer than remaining two tarsomeres combined length; small spinules present on both sides; inner apical spur as long as last tarsomere. Abdomen. Cerci 1.1 times longer than hind femur, concolorous with body, without annulation; male supra-anal plate with a pair of trapezoidal lobes, hind margin with dorsal hairs; paraproct with thick and short process, right angled, with sparse hairs; female subgenital plate roundly triangular, shorter than basal width; its posterior margin with narrowly incised apex, wider than depth. Ovipositor. Ovipositor shiny brown, almost straight, needle-shaped, shorter than hind femora; apex subapically swollen, without serration; dorsal valves with 6~7 ventral bristles.

Distribution. Korea, Japan, China, Taiwan.

Species Body Pronotum Tegmen Hindfemur Ovipositor

Figures

FIGURES 1 – 3. Male habitus: 1. Ectatoderus tamna sp. nov., 2. Ornebius bimaculatus, 3. Ornebius kanetataki.

FIGURES 4 – 6. Maxillary palpi of males: 4. Ectatoderus tamna sp. nov., 5. Ornebius bimaculatus, 6. Ornebius kanetataki (scale bar = 200 μm).

FIGURES 7 – 9. Tegmina of males: 7. Ectatoderus tamna sp. nov., 8. Ornebius bimaculatus, 9. Ornebius kanetataki.

FIGURES 10 – 12. Abdominal terminalia and paraprocts (lateral views) of males: 10. Ectatoderus tamna sp. nov., 11. Ornebius bimaculatus, 12. Ornebius kanetataki.

FIGURES 13 – 15. Subgenital plates of females: 13. Ectatoderus tamna sp. nov., 14. Ornebius bimaculatus, 15. Ornebius kanetataki.

FIGURES 16 – 18. Ovipositors: 16. Ectatoderus tamna sp. nov., 17. Ornebius bimaculatus, 18. Ornebius kanetataki.