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Taxonomic Review of Korean Hedychrum Latreille, with a description of new species
Author(s) -
Ha HyeongHwa,
Kim JeongKyu
Publication year - 2011
Publication title -
entomological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 20
eISSN - 1748-5967
pISSN - 1738-2297
DOI - 10.1111/j.1748-5967.2011.00384.x
Subject(s) - biology , anatomy , claw , sulcus , genus , subfamily , fossa , tribe , zoology , ecology , biochemistry , sociology , anthropology , gene
The genus Hedychrum Latreille is the second largest one of the tribe Elampini (Chrysidinae: Chrysididae), with 146 extant species mainly distributed in Eastern Hemisphere. Almost entire species of the genus were known to be the cleptoparasites ofsphecid subfamily Philanthinae (Kimsey and Bohart, 1990). The members of Hedychrum are small to medium‐sized chrysidid wasps ranging from 3.5 mm to 8.5 mm in body length, and separated from other generic members by the following combination of characteristics. Scapal basin somewhat deeply excavated and compactly cross‐ridged, presence of a sharp tooth on base of oral fossa, presence of anteromedial pit on pronotum, rounded mesopleuron with indistinct omaulus and short scrobal sulcus, lacking of medial enclosure on propodeum, presence (sometimes obsolete) of pit or depression in mid and hind tibial inner faces, enlarged hind femur, tarsal claw with sub‐parallel tooth (appearing apically bifid), forewing medial vein very slightly curved (almost straight), stigma slender and apically acute, tergum III usually with lateral tooth and sub‐apically swollen, female sternum III with sub‐basal sulcus extending toward mid‐line and often with apicomedial tubercle. So far, taxonomic information on Korean Hedychrum has been fragmentary and secondary in previous regional‐based studies (Uchida, 1927; Tsuneki, 1953; Terayama et al., 2005) that providedjust outline of the occurrence of four species. We reviewed the genus Hedychrum in Korea, and confirmed six species including four previously known ones. Among them, Hedychrumkoreanum Ha and Kim is here supposed to be new to science, and H . chalybaeum is new to Korea. The new species is very similar to H. okai , but easily separated by the presence of carinae on ventrolateral face of fore‐femur and difference in coloration. Key, description, additional diagnosis, and digital images are provided.