Corresponding author: Seunghwan Lee (
Academic editor: H. Douglas
The genus
Seung J, Muona J, Lee S (2018) Taxonomic review of the genus
The genus
Herein, we firstly report and review Korean species of genus
Most samples were collected using flight intercept traps, light trapping, or by hand during 2015 and 2016. Samples were preserved in 95% ethanol and made into dried specimens by the double mounted method (pinned with a micropin to a block of cork, which is mounted on a standard insect pin). In order to examine detailed structures, some specimens were softened in distilled water for an hour and dissected using a micro-pin and forceps. Photographs for each species were taken using a digital camera (Canon EOS-600D) through MP-E 65mm lens. Samples for this study are deposited in the insect collection of the College for Agriculture and Life Sciences, Seoul National University (
Morphological terminology follows
We identified the species by literature comparison (
Head: vertex with transverse row of dense vestiture; frons with a pair of longitudinal carinae near compound eyes; antennae subfiliform to serrate; antennomere II shorter than IV. Prothorax: pronotum parallel-sided, about as long as wide; lateral carina divided into anterior and posterior parts; antennal grooves notosternal, parallel-sided, with lateral marginal carina. Pterothorax: elytra with strongly convex apices in lateral view; mesepimeron fused with mesepisternum; metepisternum narrow, subparallel-sided, 7–9 × longer than wide; metacoxal plate strongly expanded medially. Leg: tibiae and tarsi slender; metatarsomere I 1.5 × longer than II–IV combined; tarsal claws simple. Abdomen: ventrites connate, ventrite V sinuate and acute in ventral profile. Aedeagus: dorsoventrally compressed; median lobe bifurcate at apex; lateral lobes not fused with ventral plate, slender, narrowing apically (
1 | Antennomere III of male less than 1.5 × longer than IV; elytra 2.65–2.70 × longer than combined width |
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– | Antennomere III of male more than 1.5 × longer than IV (Fig. |
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2 | Frons without medio-longitudinal carina (Fig. |
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– | Frons with weak medio-longitudinal carina (Fig. |
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Body: mostly coloured dark brown. Head: frons simple, without medio-longitudinal carina; anterior edge of frontoclypeal region 2.7 × wider than distance between antennal sockets in female; antennomere III 1.3 × longer than IV in female. Pronotum: anterolateral carina one-fifth as long as pronotum; posterolateral carina four-fifths as long as pronotum. Pterothorax: elytra 2.65 × longer than combined width, apices with strongly convex apices in lateral view. Leg: metatarsomere II 1.6 × longer than III, as long as V.
Korea (New record), Japan, Nearctic Region (USA).
A female individual of
Body: mostly coloured black. Head: frons with a weak medio-longitudinal carina; anterior edge of frontoclypeal region 2.9 × wider than distance between antennal sockets in male, 2.7 × wider in female; antennomere III 1.35 × longer than IV in male, 1.7 × longer in female. Pronotum: anterolateral carina one-sixth as long as pronotum; posterolateral carina four-fifths as long as pronotum. Pterothorax: elytra 2.7 × longer than combined width, apices with fairly convex apices in lateral view. Leg: metatarsomere II 1.6 × longer than III, as long as V. Aedeagus: 5.3 × longer than wide; lateral lobes as long as median lobe, phallobase trapezoidal, one-sixth as long as aedeagus.
Korea (New record), Japan, Russia (Far East).
Mature larvae of
Body: mostly coloured brown. Head: frons simple, without medio-longitudinal carina; anterior edge of frontoclypeal region 3 × wider than distance between antennal sockets in male, 2.8 × wider in female; antennomere III 1.5 × longer than IV in male, 1.75 × longer in female. Pronotum: anterolateral carina one-sixth as long as pronotum; posterolateral carina four-fifths as long as pronotum. Pterothorax: elytra 2.5 × longer than combined width, apices with weakly convex apices in lateral view. Leg: metatarsomere II 1.3 × longer than III, metatarsomere V 1.2 × longer than II. Aedeagus: 4.5 × longer than wide; lateral lobes slightly longer than median lobe; phallobase rectangular, almost one-fifth as long as aedeagus.
Korea (New record), Japan.
Last instar larvae of
We are very grateful to Dr. R.L. Otto (Department of Entomology, University of Wisconsin–Madison, USA) for the helpful comments and advice to this study. We also appreciate to Dr. Boohee Jung (Korean Entomological Institute, Korea University, Korea), Mr. Seunghyun Lee, Mr. Minsuk Oh, and Ms. Moonok Yeom for collecting samples for this study. The research on the species newly recorded in Korea was supported by a grant from the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR201601203).