Scleropteroides longiprocessus Huang & Yoshitake

Huang, Junhao, Yoshitake, Hiraku, Zhang, Runzhi & Ito, Motomi, 2014, Taxonomic revision of the East Asian genus Scleropteroides Colonnelli, 1979 (Coleoptera, Curculionidae, Ceutorhynchinae), ZooKeys 437, pp. 45-86 : 48-50

Taxon classification Animalia Coleoptera Curculionidae

Scleropteroides longiprocessus Huang & Yoshitake sp. n. Figs 3, 4, 26-29, 36-37, 70-89, 134

Diagnosis.

The species is very similar to Scleropteroides hypocrita but is distinguished from it by the following characteristics: subapical part of the prothorax strongly constricted (Fig. 36); elytra with strongly prominent humeri, straightly convergent toward the subapical calli, (Fig. 37); scales in a row on elytral intervals semierect, nearly as long as the width of each interval (Fig. 37); apical half of the male rostrum slightly more widened (Fig. 26); male metaventrite more prominent ventrally along the apico-lateral margin of the metaventral receptacle; male ventrite I with no prominence; penis with a longer apical projection (Figs 71, 81); endophallus with a pair of narrow falcate sclerites in the basal part (Figs 70, 80); female sternite VIII with arms that are divergent apically (Figs 77, 87); bursa copulatrix without minute coniform spicules in the posterior part (Figs 75, 85).

Male.

LB: 2.27-2.63 (mean, 2.39). LR: 0.97-1.08 (mean, 1.04). WP: 0.95-1.00 (mean, 0.97). LP: 0.76-0.85 (mean, 0.82). WE: 1.49-1.62 (mean, 1.57). LE: 1.53-1.66 (mean, 1.62). N = 10 for all measurements. Habitus as shown in Figs 3-4.

Vestiture. Clavate scales slightly longer and semierect on head, basal 2/3 of rostrum, and pronotum. Scales on elytral intervals (Fig. 37) semierect, slightly longer, 0.9-1.2 × as long as interval width.

Rostrum (Figs 26-27) slender, 1.21-1.32 × as long as pronotum; sides more strongly widened in apical part, which is 1.23 × as wide as basal part. Antennae (Fig. 27) with length ratio of funicular segments I: II: III: IV: V: VI = 1.88: 1.54: 1.12: 1.00: 0.96: 0.96 and width ratio = 1.73: 1.00: 1.36: 1.45: 1.45: 1.55.

Pronotum (Fig. 36) 1.13-1.27 × as wide as long, 0.47-0.52 × as long as and 0.59-0.65 × as wide as elytra; subapical constriction stronger; sides subparallel along basal half, then rapidly convergent toward apex.

Elytra 1.01-1.04 × as wide as wide, 1.92-2.14 × as long as and 1.54-1.69 × as wide as pronotum, straightly convergent toward subapical calli; humeral calli slightly more prominent; subapical calli moderately prominent.

Underside. Metaventrite moderately prominent ventrally along apico-lateral margin of metaventral receptacle. Ventrite I weakly flattened on disc, lacking prominence; length ratio of ventrites I: II: III: IV: V = 4.33: 2.00: 1.00: 1.13: 2.22 and width ratio = 1.89: 1.70: 1.23: 1.11: 1.00.

Genitalia. Tegmen (Figs 73, 83) with apodeme strongly widened toward apex. Penis (Figs 70-72, 80-82) thick in profile; sides more or less weakly widened from base to apical 1/5, strongly convergent apically; apical projection more slender. Endophallus (Figs 70, 80) with pair of narrow falcate sclerites in basal part.

Otherwise as in Scleropteroides hypocrita .

Female.

LB: 2.08-2.53 (mean, 2.34). LR: 0.97-1.15 (mean, 1.09). WP: 0.90-1.07 (mean, 0.97). LP: 0.74-0.86 (mean, 0.81). WE: 1.43-1.64 (mean, 1.54). LE: 1.46-1.68 (mean, 1.59). N = 10 for all measurements.

Rostrum (Figs 28-29) slightly more slender, 1.30-1.39 × as long as pronotum.

Pronotum 1.14-1.28 × as wide as long.

Elytra 1.01-1.08 × as long as wide.

Underside. Ventrite V with small median concavity, which is sometimes obscure. Sternite VIII (Figs 77, 87) with arms slightly more slender and apically divergent.

Genitalia. Bursa copulatrix (Figs 75, 85) lacking spicules. Coxites (Figs 78, 88) nearly 5.0 × as long as styli; styli more slender, nearly three times as long as wide. Spermatheca (Figs 79, 89) with collum more strongly convex; insertions of duct and gland slightly more distant from each other.

Otherwise showing almost the same sexual dimorphism as in Scleropteroides hypocrita .

Type material.

HOLOTYPE: 1 male (NIAES), "[Japan: Kyushu]/Mts. Sefuri-sanchi/Mt. Kusenbu-yama/8-V-2005/Hiraku Yoshitake" (printed on white card); "On Rubus palmatus Thunb. (Rosaceae)/[JN: Nagaba-momiji-ichigo] with flowers" (print ed on white card); "[HOLOTYPE] Male/Scleropteroides/longiprocessus/Huang & Yoshitake, 2008" (typed on red card). PARATYPES. JAPAN: Honshu. IWATE. 1 male and 1 female, Miyako, Genbehdaira, 9-VI-2007, K. Morimoto (NIAES). 2 males and 6 females, Tsuchisaka-touge Pass, Kawai, 12-VI-2007, J. Kantoh (NIAES). MIYAGI. 1 male, Naruse, Miyatojima I., V-1995, M. Kodama (NIAES). 1 male and 2 females, Sendai, Mt. Banzan, 20-V-1995, H. Yoshitake (NIAES). AKITA. 1 male and 1 female, Lake Tazawako, 15-VI-1974, S. Miyakawa (SM). YAMAGATA. 2 males and 3 females, Mt. Zaousan, Yoshikari-rindou, 18-VI-1983, S. Miyakawa (SM). FUKUSHIMA. Haranomachi, Kozikiishi-rindou: 1 male, 30-V-1987, H. Ebihara (NIAES); 1 male, 5-VI-1988, S. Miyakawa (SM). 1 female, Haranomachi, Akanesawa-rindou, 5-VI-1988, S. Miyakawa (SM). 1 female, Namie, 30-IV-1994, H. Yoshitake (NIAES). 1 male, Iizaka, Moniwa, Yakematsu, 1-V-1997, S. Saito (NIAES). IBARAKI. Mt. Yamizosan, Shimokitazawa: 7 males and 1 female, 1022 m, 28-V-1988, S. Miyakawa (SM); 1 male and 2 females, 28-V-1988, Y. Kurosawa (SM). TOCHIGI. 1 male and 2 females, Nikko, Kashiwagi, 16-V-1982, S. Miyakawa (SM). 1 male and 1 female, Shiobara, Hikinuma, 19-V-1989, S. Miyakawa (SM). 3 males and 1 female, Mt. Shibakusayama, 18-V-1990, H. Kojima (ELKU). GUNMA. 1 male and 1 female, Matsuida, Kirizumi-onsen, 16-V-1998, S. Arai (NIAES). 2 males and 2 females, Niiharu, Amemi-rindou, 4-V-1998, S. Arai (NIAES). 1 female, Fujiwara, Nakanosawa-rindou, 19-V-1989, S. Miyakawa (SM). 6 males and 4 females, Fujiwara, Midorizawa-rindou, 29-V-1989, S. Miyakawa (SM). NIIGATA. Kurokawa: 1 female, 28-IV-1973, K. Baba (ELKU); 2 females, 26-V-1976, K. Baba (ELKU); 1 female, 24-V-1980, K. Baba (ELKU). 1 male and 1 female, Teradomari, Enjouji, 21-23-V-1996, K. Ishida (NIAES). 1 male, Sadogashima I., Nagaishihama, 22-VII-1970, K. Baba (ELKU). FUKUI. 2 males and 1 female, Obama, Shimonegouri, 6-V-1979, H. Sasaji (ELKU). YAMANASHI. 1 female, Mt. Fujisan, Fuji-rindou, 23-VI-1983, S. Miyakawa (SM). 1 male, Ootsuki, Nanaho, 9-V-1976, S. Miyakawa (SM). 1 female, Ootsuki, Koganezawa-rindou, 30-V-1980, J. Okuma (SM). NAGANO. 1 female, Tobira-onsen, 26-VI-1985, H. Hayakawa (SM). 5 males, Nagiso, 29-IV-1998, H. Yoshitake (NIAES). 2 males and 1 female, Iida, Hatouchi-rindou, 29-30-IV-1998, H. Yoshitake (NIAES). 2 males, Nakakawa, 1-V-1998, H. Yoshitake (NIAES). GIFU. Nakatsugawa, Kamisaka: 1 female, 13-VI-1987, S. Miyakawa (SM); 1 female, 13-VI-1987, K. Morimoto (ELKU). 5 exs., Nakatsugawa, Nenoue-kougen, 6-V-2013, K. Izawa, on R. palmatus var. coptophyllus (KI). SHIZUOKA. 1 female, Shinfuji, 30-IV-1989, N. Niwa (NIAES). 5 males and 6 females, Nakaizu, Mt. Amagisan, 3-V-1990, H. Kojima (ELKU). 1 male and 4 females, Mt. Ooyama, 5-V-1993, Y. Notsu (NIAES). 3 males and 1 female, Shizuoka, Umegashima, 15-V-1993, T. Kishimoto (NIAES). Izu-hantou Peninsula: 3 males and 1 female, Hacchouike Pond, Amagi-touge Pass, 28-V-1972, S. Miyakawa (SM); 1 female, Kamo, Oogusu, 11-V-1980, J. Okuma (SM); 1 female, Hacchouike Pond–Kantenbashi, 14-V-1980, J. Okuma (SM). 1 male, Umegashima, 15-16-V-1993, H. Sato (NIAES). 1 female, Shizuoka, Nakaizu, Amagi-kougen, 31-V-1987, S. Miyakawa (SM). AICHI. 6 exs., Shitara, Mt. Nishinagura-Iyama, 29-V-2010, K. Izawa, on R. palmatus var. coptophyllus (KI). Toyota, on R. palmatus var. coptophyllus: 5 exs., Nishiichinonochou, 8-V-2013, K. Izawa, (KI); 4 exs., Asugawachou, Asugawa-hoan-rindou, 8-V-2013, K. Izawa (KI); 2 exs., Inabuchou, Noirigawa, 22-V-2013, K. Izawa (KI). SAITAMA. 1 female, Mt. Kasayama, 26-V-1967, H. Takizawa (NIAES). 1 male, Saitama Yokote, 28-IV-1974, S. Miyakawa (SM). 1 female, Lake Miyazawako, 11-V-1975, S. Miyakawa (SM). 1 male, Shoumaru-touge Pass, 9-V-1976, S. Miyakawa (SM). CHIBA. 1 female, Mt. Kiyosumiyama–Kenminnomori, 31-V-1979, J. Okuma (SM). TOKYO. 1 female, Okutama, Kurasawadani, 19-VI-1938, S. Miyakawa (SM). Nishitama, Mt. Oodakeyama: 1 male, 21-V-1942, S. Miyakawa (SM); 2 males and 1 female, 15-V-1966, S. Miyakawa (SM). Hachiouji, Mt. Takaosan: 1 female, 30-V-1980, Y. Shiozaki (YS); 1 male and 1 female, 23-VI-1996, H. Yoshitake (NIAES); 5 exs., 22-V-2010, K. Izawa, on R. palmatus var. coptophyllus (KI). Hachiouji, Mt. Takaosan, Kogesawa-rindou: 3 males, 14-V-1944, S. Miyakawa (SM); 1 male and 1 female, 1-2-V-1999, H. Yoshitake (NIAES). 5 males and 5 females, Hachiouji, Mt. Takaosan, Path 6, 240-599 m, 35°37'30"-35°37'50"N, 139°14'36"-139°15'43"E, 15-V-2005, R. palmatus var. coptophyllus, H. Yoshitake (NIAES). 1 female, Hachiouji, Kitano, 14-IV-1968, S. Miyakawa (SM). 1 female, Inagi, Yomiuri Land, 17-V-1974, S. Miyakawa (SM). KANAGAWA. 1 male, Mikuni-touge Pass, 7-VI-1970, H. Takizawa (NIAES). 1 female, Mt. Ooyama, 2-VI-1981, S. Miyakawa (SM). 2 males, Yokohama, Nakayama, 3-V-1983, S. Miyakawa (SM). 1 female, Hakone, Oowakudani, 15-VI-1985, S. Tsuyuki (NIAES). Hadano: 1 female, Mt. Koubouyama, 24-IV-1983, Y. Shiozaki (YS); 1 male, 30-IV-1990, H. Takizawa (NIAES). 1 female, Tanzawa Mts., Mizunashigawa, 30-IV-1983, Y. Shiozaki (YS). Hadano, Yabitsu-touge Pass: 1 female, Yabitsu, 1-VII-1983, K. Shiozaki (YS); 1 female, 29-IV, K. Suzuki (ELKU). YAMANASHI. 1 female, Akaishi-sanmyaku Range, Norogawa-rindou, 5-VI-1983, Y. Shiozaki (YS). MIE. 1 female, Ninomata–Owase, 26-VI-1960, H. Ichihashi (NIAES). 1 male, Komono, Unbomine, 28-IV-1985, A. Amagasu (ELKU). 1 female, Shiga, Mt. Ibukiyama, 10-VI-1990, H. Takizawa (NIAES). 1 female, Toba, Mastuno, Mt. Aonomineyama, 19-V-1996, H. Yoshitake (NIAES). 8 males and 6 females, Toba, Toushijima I., 10-IV-1996, K. Ishida (NIAES). 1 male, Misugi, Hirakura, 7-8-VI-1997, H. Yoshitake (NIAES). NARA. 1 female, Kawakami, Mt. Wasamatayama, 8-VII-1995, A. Yoshida (NIAES). 1 male, Mt. Miyama, 7-VII-1989, S. Yamada (NIAES). OKAYAMA. 2 males and 1 female, Kamo, Kurami, 29-VI-1985, K. Watanabe (SM). 2 females, Tetta, Mt. Aratoyama, 16-V-1982, K. Yoshihara (SM). 1 male, Takahashi, Mt. Gagyuusan, 5-V-1984, K. Yoshihara (SM). Izu Islands. 1 female, Kouzushima I., Maehama–Tsuzukizawa, 9-V-1979, J. Okuma (SM). Shikoku. TOKUSHIMA. 1 female, Haranomachi, 8-VI-1980, K. Shiozaki (YS). 1 male and 1 female, 1-VI-1986, A. Watanabe (YS); 1 female, 5-VI-1986, A. Watanabe (YS). EHIME. 2 females, Imabaru, Mt. Takanawazan, 5-V-1976, S. Inoue (EUMJ). KOCHI. 1 male, Okunanokawa, 4-V-1967, H. Oonishi (EUMJ). Cape Murotomisaki: 1 male and 1 female, 7-VI-1959, M. Miyatake (EUMJ); 1 female, 8-V-1959, S. Hisamatsu (EUMJ); 2 females, 12-VII-1961, M. Miyatake (NIAES). Kyushu. FUKUOKA. 1 male, Chikugo, Mt. Kumadoyama, 1-VI-1958, Y. Miyaue (ELKU). 1 female, Munakata, Mt. Jouyama, 6-IV-1975, K. Kido (ELKU). 1 female, Itoshima, Himeshima I., 3-VI-1990, K. Kido (ELKU). 1 female, Shikanoshima I., 29-IV-1994, K. Morimoto (ELKU). 1 female, Fukuoka, Motooka, 2-VII-1994, K. Morimoto (ELKU). 1 male and 1 female, Mt. Sefurisan, 3-VI-2001, H. Hirano (NIAES). 1 male, Yabe, Mt. Shakagatake, 25-IV-2004, H. Hirano (NIAES). 3 males and 1 female, Nokonoshima I., 17-VI-2003, H. Hirano (NIAES). Mt. Hikosan: 2 males and 3 females, 17-19-V-1967, H. Takizawa (NIAES); 1 female, 4-V-1985, Y. Kajida (NIAES); 2 males and 4 females, 30-V-1995, K. Morimoto (ELKU); 1 female, 26-VI-2003, H. Hirano (NIAES). SAGA. 1 male, Okuhiratani, Mt. Taradake, 23-IV-1989, T. Yasunaga (ELKU). 2 males and 3 females, same data as holotype (NIAES). 2 males and 2 females, Mt. Kusenbuyama, Hakotani-rindou, 8-V-2005, H. Yoshitake, on R. crataegifolius (NIAES). NAGASAKI. 1 male, Shimabara, Taruki, 16-VII-1976, S. Imasaka (NIAES). 1 female, Shimabara, Akamatsudani Gorge, 8-VI-1979, S. Imasaka (NIAES). Mt. Unzendake: 1 female, 25-V-1976, S. Imasaka (NIAES); 1 female, 21-VII-1976, S. Imasaka (NIAES). 1 male and 2 females, Nomozeki, 13-V-1976, S. Imasaka (NIAES). 1 male, Tashirobaru, 21-IV-1977, S. Imasaka (NIAES). 15 males and 12 females, Sasebo, Mt. Eboshidake, 13-IV-1977, J. Okuma (SM). 4 males, Sasebo, Mt. Hattendake, 23-V-1982, J. Okuma (SM). Sasebo, Mt. Yahirodake: 1 male and 1 female, 18-IV-1977, J. Okuma (SM); 2 males, 6-IV-1981, J. Okuma (SM); 1 female, 21-V-1981, J. Okuma (SM); 1 female, 26-V-1982, J. Okuma (SM); 1 female, 29-III-1983, J. Okuma (SM); 1 female, 30-IV-1983, J. Okuma (SM); 1 male, 2-V-1983, J. Okuma (SM); 2 females, 15-V-1984, J. Okuma (SM). 1 male and 1 female, Hiradoshima I., Mt. Yasumandake, 10-V-1980, S. Imasaka (NIAES). KUMAMOTO. 1 male, Gokanoshou, 26-27-V-1978, K. Ohara (ELKU). Izumi, Mt. Shiratoriyama: 1 female, 1300 m, 6-VI-1980 (ELKU); 1 female, 7-8-VI-1989, T. Yasunaga (ELKU). 1 male and 2 females, Yabe, Naidaijin-rindou, 21-VI-1998, H. Kojima (ELKU). OITA. 1 male and 2 females, Kuju Mts., Bougatsuru, 27-V-1988, K. Morimoto (ELKU). KAGOSHIMA. Oosumi-hantou Peninsula, Cape Satamisaki: 1 male, 25-VI-1957, T. Saigusa (ELKU); 1 female, 8-VI-1958, H. Ueno (ELKU). 5 males and 6 females, Mt. Hoyoshidake, 14-15-IV-2002, H. Yoshitake (NIAES). 1 male, Mt. Kobadake, 28-VI-2003, H. Yoshitake (NIAES).

Distribution.

Japan (Honshu, Izu Islands, Shikoku, and Kyushu; Fig. 134).

Etymology.

The species name refers to the elongate apical projection of the penis, from Latin: longi-, from longus, -a, -um, meaning “long”, and processus, meaning “projection”. To be treated as a substantive in apposition.

Biological note.

In several localities in Honshu, a number of adults of this species were found on Rubus palmatus Thunb. var. coptophyllus (A.Gray) Kuntze ex Koidz. In addition, adults of this species were collected mostly from Rubus palmatus Thunb. and rarely from Rubus crataegifolius Bunge on Mt. Kusenbuyama, Kyushu.