We report here the new species, Aphaenogaster koreana sp. nov. first fossil record of alate reproductive female (gyne) Aphaenogaster from Eastern Palaearctic region on the basis of forewing venation and other external morphologies. Single fossil specimen was discovered from the Duho Formation of the Middle Miocene (c.a 15 Ma), Pohang, Republic of Korea. For accurate identification, we selected extant Aphaenogaster species for reference and compared wing venations and body measurements to new species. Furthermore, we suggest previously recorded Aphaenogaster species from Miocene Grubstake Formation of Alaska (UAF-GS23, UAF-GS24) removed from the genus and remained in unplaced species in the Myrmicinae (incerta sedis). Because of similarity between genus Aphaenogaster and Paraphaenogaster which shares morphological similarities, we provide comparison between the new species and the other known gyne Aphaenogaster and Paraphaenogaster. Diagnostic characters for gynes of Aphaenogaster are also provided

The confused taxonomy of the east Palaearctic pear psyllids, serious pests on cultivated pear, is reviewed. Fifty-sixnominal species have been reported from Pyrus, 25 of which we consider valid and ten as not being associated withPyrus. Our taxonomic revision suggests that, in Korea, four Cacopsylla species develop on pear. Three species occuralso in Japan. New synonyms are suggested and seasonal dimorphism are critically discussed.Key words : Psyllidae, Cacopsylla, taxonomy, host plant, Pyrus, Rosaceae, Manchrian pear, Asian pear, European pear, China,Japan, South Korea, Russian Far East

한국산 미기록속인 낫어리염주벌속(Psilomma Förster) (신칭)과 미기록종인 낫어리염주벌(Psilomma dubium Kieffer) (신칭)을 처음으로 보고한다. 그에 따라 본 속을 동구북구 지역에 최초로 보고한다. 재기재문 및 주요 형질에 대한 사진을 함께 제시한다.

Rhyssinae Morley, 1913 is a relatively small group belonging to the family Ichneumonidae and recorded 286 species in eight genera from the world. Most rhyssines are Idiobiont ectoparasitoid of wood boring Symphyta and Coleoptera. South Korean Rhyssinae were poorly known. In the recent study of the Rhyssinae of South Korea, only four species belonging to the genera Megarhyssa and Rhyssa, have been reported: M. gloriosa (Matsumura), M. jezoensis (Matsumura), M. praecellens (Tosquinet) and R. persuasoria (Linnaeus). Five genera of the subfamily Rhyssinae (Epirhyssa, Megarhyssa, Rhyssa, Rhyssella and Triancyra) are recognized in South Korea. Two genera, Megarhyssa and Rhyssa, were previously recorded from South Korea, whereas the other three genera are recorded for the first time in Korea. A key to the five genera of Rhyssinae occurring in South Korea is provided. Genus Epirhyssa is reviewed here, and a key to the four species (E. latimandibularis (Hu & Wang), E. moiwana Matsumura, E. sapporensis Uchida and E. nigrithorax sp. nov.) is provided.

The East Palaearctic genus Atrachea Warren, 1911 are revised. Two generic names Trichosternum Draudt, 1950, syn. n. and Zutragum Nye, 1975(replacement name for Trichosternum), syn. n. are synonymized with Atrachea. Three new combinations and new synonymies for two specific names are proposed: Atrachea prasinatra(Draudt, 1950), comb. n., Atrachea leucochlora(Boursin, 1970), comb. n., Atrachea munda(Leech, 1900) = Valeriodes muscosula Draudt, 1950, syn. n.; A. viridinigra(Hreblay et Ronkay, 1997), comb. n.; Atrachea ochrotica(Hampso, 1910) = Trichosternum likianga Draudt, 1950, syn. n. Two new species, A. draudti sp. n. and A. chlorofasciata sp. n. from China are described. A list of Palaearctic species of Atrachea is presented.

금번연구를 통해 Lepidopria속 및 Tetramopria속의 3신종 [Lepidopria masneri sp. n., Tetramopria tortilis sp. n. 및 Tetramopria turbinata sp. n.]이 기재된다.