Vecht, a poorly known vespine species, was discovered in Korea. This is the second treatment of this species on the Korean peninsula since the first report on Korean occurrence by Virula in 1925; however, the first one was based on practical Korean distributional information. Diagnostic description and digital images are provided.
Korean occurrence of
was first reported by Birula (1925) as a new species of
. His original description was based on a holotype from Sackhalin (Russia) and two paratypes from Korea. However, he did not give any Korean locality. Later taxonomic works on South Korean
species, such as those by Kim et al. (1994) and Kim et al. (2006), also did not deal with this species; therefore, the Korean locality of the species has remained undiscovered.
We recently discovered specimens of this distinct species deposited at the Korea National Arboretum (KNA). This species is known to be nocturnal or crepuscular (van der Vecht, 1959), and very easily distinguished from other
species by a large ocelli and short oculus-ocellus distance.
This is the second Korean record concerning this species; however, the first report included domestic distributional data. Diagnostic description and digital images of this species are presented.
Order Hymenoptera Linnaeus, 1758
Family Vespidae Latreille, 1902
GenusVespa Linnaeus, 1758
- 1*Vespa binghamidu Buysson, 1905
du Buysson, 1905: 488 (in key), 523, ♀, “Tennaserim, Taungoo Hills”, Myanmar, (lectotype in Paris Mus.); van der Vecht, 1959: 216 (lectotype designation); Archer, 1989: 10 (in key), 33; Kurzenko, 1995: 283-284 (in key); Carpenter and Kojima, 1997: 67 (listed).
Birula, 1925: 89 (in key), 92, ♀, “Insel Sachalin”, Russia, also from Korea (St. Petersburg); Archer,1989: 33 (synonymize with
- Female (queens and workers).
Body 21.0-31.5 mm long, and forewing 19.0-25.6 mm long (
A, B). Ocellus large, its diameter almost as long as the basal breadth of antennal flagellum I; oculus-ocellus distance (shortest distance between inner margin of compound eye and outer margin of posterior ocellus) very short, less than two-thirds of anterior ocellus diameter (
F). Gena somewhat strongly extended outwardly, its margin visible in frontal view (
E); in profile, the ratio of gena width to eye one approximately 1.4 in the broadest portion. Clypeus somewhat strongly swollen, with coarse large dense punctures in its apical half and smaller finer ones in its basal half; its apical margin emarginate (emargination broadly rounded, but much less than semicircular); tips of apical teeth rounded, almost semicircular in shape (
E). Pretegula carina complete.
Following parts/markings deep yellow or orange yellow, often partially tinged with ferruginous yellow (
A, B). Almost entire face of head including frons, vertex, gena,
Vespa binghami du Buysson. A General habitus dorsal ♀; B General habitus in profile ♀; C General habitus dorsal ♂;D General habitus in profile ♂; E Head in full frontal view ♀; F Ocellar region ♀; G Metasomal sterna VI-VII ♂; H Head in full frontal view ♂; I Last five antennal segments ♂. Scale bars: A-D=2 mm E-I=1 mm.
clypeus, larger part of mandible except for near apical teeth area. Thick apical bands on metasomal terga Ⅰrior margins of bands sinuous, bands on terga I-Ⅱin apical half, and bands on terga Ⅲmost entire exposed faces. Apical band of sterna Ⅱre face of metasomal segment Ⅵing parts/markings bright ferruginous or reddish: tibiae of all legs, ocellar region, antennae, pronotal tubercle, anterior and posterior margins of pronotal dorsum, posterior margin of scutellum, and disks of terga Ⅲexcept for apical bands area.
Entire body being covered with yellowish (partially somewhat deep yellowish or brownish) dense erect hairs, without blackish ones.
- Male (based on one specimen).
Body 25.5 mm long, and forewing 21.1 mm long (
C, D). Ocelli large as in female, but oculus-ocellus distance longer than one in female, but still shorter than ocellus diameter. Head, in frontal view, much broader than long (
H). Gena not strongly extended outwardly as in female, its margin not visible in upper half (
H); the ratio of gena width to eye one approximately 1.3. Clypeus broader than high (approximately 1.3 as broad as long) and somewhat polished with fine sparse punctures, especially its median part almost impunctate; clypeal apical margin truncate (
H). Lower face of antennal segments Ⅺth tyloids (one on segment Ⅺin shape, and ones on segment Ⅻvering almost entire lower faces); last segment tapering and bent backward, longer than penultimate segment (
I). Apicomedian margin of sternum Ⅵy notched; larger median part of sternum Ⅶed, and its apical margin broadly rounded including apicomarginal lamellate plate (
G). Coloration and hair condition much as in female.
- Specimens examined.
Korea: Gyeonggi-do: 2♀♀, Gwangneung, 13 Oct 1988, Weon GJ (KNAE0301212002, KNAE 0303262001); 1♀, ditto, 4 Oct 1997, Weon GJ (KNAE030 1212001); 1♀, Gwangneung, Korean National Arboretum, 37°44′54.73N, 127°04′50.09′′E, 17 Aug 2006, Han HJ(KNAE65355); 3♀♀, Gwangneung, Lake Yuklim, 37°44′54.95′′N, 127°90′49.23′′E, 1 Jun 2010, Park SY, Koh KH, Yii KA (KNAE241039, KNAE241094, KNAE241096); 1♀, ditto, 1 Jul 2010, Park SY, Lim JS (KNAE241095); 2♀♀, ditto, 29 Jul 2010, Park SY, Lim JS, Ko KH, Kim KM (KNAE241884, KANE241885); 2♀♀, ditto, 19 Aug 2010, Park SY, Lim JS, Ko KH, Kim KM (KNAE274135, KANE 274136); 1♀, ditto, 6 Sep 2010, Park SY, Lim JS, Ko KH, Kim KM; Gangwon-do: 1♀, Inje-gun, Nam-myeon, Mt.Maebongsan, 37°57′18.4′N, 127°59′55.8′′E, 20 Jul 2010, Park SY, Lim JS, Kim KM; Gyeonggi-do: 1♂, 1♀, Gwangneung, Korean National Arboretum, 33°24′08.54′′N, 126°22′53.18′′E, 12 Oct 2010, Park SY, Lim JS.
India, Bhutan, Myanmar, Thailand, Laos,Vietnam, China, Far Eastern Russia, Korea.
Korean name: 1*큰홑눈말벌
This work was supported by the Survey of Indigenous Biological Resources of Korea Project, NIBR, and the Ecotechnopia 21 Project.
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