01(완료)79~82KJAE_11-69(이승환).pdf2.08MB

• Introduction
• Materials and Methods
• Taxonomic Accounts
• Family Elateridae Leach, 1815
• Subfamily Dendrometrinae Gistel, 1856
• Tribe Prosternini Gistel, 1856
• Genus Pseudanostirus Dolin, 1964 북방방아벌레속 (신칭)
• Diagnosis
• Distribution
• Remarks
• Pseudanostirus ecarinatus (Stepanov, 1930)
• 북방방아벌레 (신칭)
• Redescription
• Female
• Specimen examined
• Distribution
• Remarks
• Acknowledgments

Introduction

 Pseudanostirus Dolin, 1964 was originally established as a subgenus of Anostrius Thomson, 1859 based on the type species Diacanthus globricollis Germar, 1843, which is widely distributed from South Russia to Central Europe (Germany, Poland, the Czech Republic, Austria, Slovakia and Hungary). However, Gurjeva (1982) raised Pseudanostirus to valid generic status.

 The members of this genus include 17 Palaearctic and six Nearctic species (Laibner, 2000). In Palaearctic regions, most species are known from Middle Asia to Siberia (Gurjeva, 1989;Tarnawski, 1996, 2000; Laibner, 2000). The members of Pseudanostirus generally occur in shrubby zones or meadows near forest (Laibner, 2000; hira and Ijima, 2001). No species of Pseudanostirus was previously recognized from Korean fauna. We found a male specimen of the genus collected from Mt. Bangtae, Gangwon-do, Korea (Fig. 1). It was subsequently identified as P. ecarinatus (Stepanov, 1930). We present a taxonomic diagnosis of the genus and species based on morphological characteristics.

Fig. 1. The collection locality of Pseudanostirus ecarinatus (Stepanov, 1930) in Korea. The black circle indicates Mt. Bangtae, Gangwon-do, Korea.

Materials and Methods

 The male specimen reported in this paper was found in insect collections housed at the Korean National Arboretum (KNA) in Pocheon-si, Gyeonggi-do, Korea. The specimen was examined under a stereoscopic microscope (MZ16A and MZ 6; Leica,Solms, Germany) for general morphological structures. Photographs were taken with two digital cameras (Canon D 30 and Leica MZ 16A equipped with a 14.2 color mosaic digital camera system).

Taxonomic Accounts

Family Elateridae Leach, 1815

Subfamily Dendrometrinae Gistel, 1856

Tribe Prosternini Gistel, 1856

Genus Pseudanostirus Dolin, 1964 북방방아벌레속 (신칭)

 Pseudanostrius Dolin, 1964. Kiev: 120, as a subgenus of Anostirus. Type-species: Diacanthus globicollis Germar, 1843.Z. Ent. Germar, Leipzing, 4: 79 (S. Russia), by original designation;Gurjeva, 1982. Leningrad, 110: 21, raised to valid generic status

Diagnosis

 Diagnosis. Body generally medium, rather stout elliptic shaped; frontal carination of head incomplete and merged with clypeus in middle, their carination diagonally extended forward from each eye; antennae serrate form, generally reaching to apex of hind angles of pronotum in male, but shorter than apex of hind angles in female; pronotum with obscure basal incisures at posterior margin; hind angles of pronotum without carina or with short and vague carina nearly extended to lateral margins; prosternal sutures simple; hypomeron with intersurface within punctures extremely narrow, coarse, and dull; prosternal process elongated and slightly bent inwardly from beyond procoxal cavities; elytral striae distinct wholly or sometimes obliterated in posterior, intervals generally well convex; male genitalia with median lobe longer than parameres, with parameres streamlined expansion at their apex in most species (except for P. risillus (Gurjeva, 1978) which has distinct hook shaped expansion in the apex of parameres); female bursa copulatrix with small spines in median, and their gathering formed a belt liked shape.

Distribution

 Distribution. Holarctic region.

Remarks

 Remarks. Pseudanostirus is new to Korean fauna. This genus is closely related to two other genera, Calambus Thomson, 1859 and Anostirus Thomson, 1859, but is easily distinguished by the following diagnostic characters: 1) the frontal carination diagonally projected forward, nearly reaching frons margin,incomplete at middle; 2) the hypomeron with a coarse surface and narrowly scattered punctures; 3) antennae serrated form; 4) female bursa copulatrix with small spinules forming as a belt-liked shape in the median region.

Pseudanostirus ecarinatus (Stepanov, 1930)

북방방아벌레 (신칭)

 Selatosomus (Calambus) ecarinatus Stepanov, 1930. Entomol. Nachrichtenbl., Troppau, 4(4): 88 (Type locality: Khabarovsk and Vladivostok in Far East Russia)
Corymbites (Calambus) ecarinatus: Jagemann, 1943. Entomol. Listy, 6: 99.
Selatosomus (Calambus) ecarinatus: Cherepanov, 1957. Novosibirsk: 281 and 311.
Calambus (Calambus) ecarinatus: Bessolitzina, 1974. Vostoch. Sibir. ino Dal'n. Vost.: 92.
Pseudanostirus ecarinatus: Gurjeva, 1984. Nauka, Leningrad, 9: 296.

Redescription

 Redescription. Body (Fig. 2A) 13.0 mm long and 4.2 mm wide, 3.1 times as long as wide, stout elliptic; color wholly black with 1^st to 4^st antennomeres, legs dusky brown; pubescences whitish yellow, short, recumbent. Head (Fig. 2C) 1.2 times as long as wide, with broad and shallow impression from dorso- median part between eyes to anterior; frontal carina incomplete at middle, connected with clypeus. Antennae (lacking 8^thth to 11^thth) (Fig. 2B) moderately serrated from 4th antennomere; 1st one stout, 1.9 times as long as wide, with weakly developed anterior carina; 2nd small, subcylindrical, 1.3 times as long as wide; 3rd cylindrical, 2.0 times as long as wide, 1.7 times as long as 2nd; 4th, 1.8 times as long as wide, 1.4 times as long as 3rd; each segment from 5^th to 8^th slightly shorter than preceding one. Pronotum 1.1 times as wide as long, shiny wholly; lateral sides weakly marginate, arched, widest just before middle; punctures small, simple, their diameters 0.0200.025 mm and intervals between punctures 0.0250.050 mm (Fig. 2E); hind angles (Fig.2D) broad at base, without carina, divergent backwardly, apex with nail-like projection on inner side; posterior margin with obscure basal incisures. Prosternum (Fig. 2F) weakly convex, shiny, with small punctures rather dense; anterior lobe rounded, sub-equal length with apex of hypomeron; prosternal process elongate, bent inwardly beyond procoxal cavities, weakly and narrowly expanded at base; pronosternal sutures straight, simple, but double liked near at procoxal cavities (Fig. 2G). Hypomeron opaque, coarse, densely punctuated; anterior apex feebly depressed; posterior margin widely truncated at apex and emarginated. Metasternum with anterior margin broad between mesocoxal cavities, 0.8 times narrower than the width of mesocoxal cavity (Fig. 2I); median longitudinal suture completed. Scutellum 1.14 times as long as wide, rather elongate tongue shaped; anterior margin straight; lateral margins weakly sinuate inwardly at middle; posterior margin widely rounded, postero-median part shallowly depressed. Elytra 2.15 times longer than wide, parallel sided, but gradually and roundly convergent from middle to posterior apex, lateral sides marginate; elytral striae distinct, but more deeply excavated at anterior, and then gradually shallow to posterior; intervals clearly convex at anterior and generally weak to posterior. Abdomen with 5^th visual abdomen semi-oval; sternite 9^th and 10^th as figured (Fig. 2J). Aedeagus (Fig. 2K) with median lobe slender, shapely pointed at apex, and a little longer than parameres; Parameres strongly and widely sinuate in middle, out-margins of apexes inflated and elongated as oval shape.

Fig. 2. Pseudanostirus ecarinatus♂. A. habitus in dorsal view; B. 1st to 4th antennomeres; C. Head in dorsal view; D. Hind angle of pronotum; E. Surface of pronotum; F. Prosternum and prosternal process in ventral view; G. Base of prosternal suture; H. Posterior apex of hypomeron in ventral view; I. Interval between mesocoxal cavities; J. Sternite 9th and 10th; K. Aedeagus in dorsal view.

Female

 Female. Unavailable in this study.

Specimen examined

 Specimen examined. 1♂, Mt. Bangtae, Inje-gun, Gangwon- do, Korea. 6. VI. 2000. Bong Kyu Byun.

Distribution

 Distribution. Korea (new record), Russia, China (Heilongjiang) and Central Mongolia

Remarks

 Remarks. The newly recorded species, P. ecarinatus, in Korea was designated as a member of the subgenus Calambus under the genus Selatosomus. Gurjeva (1984) transferred the species into the genus Pseudanostirus. The species closely resembles P.dilatatus (Miwa, 1928), occurring in Hokkaido, Japan and Sakhalin, Russia but can be distinguished by the ratio of the 2^nd to 3^rd antennomeres. In P. ecarinatus, the 3^rd antennomere is approximately 2.0 times as long as 2^nd, whereas it is 2.3~2.5times as long as 2^nd in P. dilatatus. The shape of the male genitalia is also similar; in P. ecarinatus, the inner sides of the parameres are entirely opened to the apex and the anterior-lateral expansions are more expanded.

Acknowledgments

 This study was carried out with the support of “Research Program for Agricultural Science & Technology Development (Project No. PJ0068012012)”, National Academy of Agricultural Science, Rural Development Administration, Republic of Korea. We thank Dr. Hitoo hira, National Institute for Physiological Sciences, Okazaki, Japan and Dr. Takashi Kishii,Osaka, Japan, for providing related papers and comparative material for this study. We are also grateful to Dr. Il kown Kim, KNA, Pocheon, Gyeonggi, Korea.