The genus Halictus Latreille, 1804 and Seladonia Robertson, 1918 are nearly cosmopolitan group, consisting of more than 206 described species worldwide except Antarctica region. In previous taxonomic and phylogenetic research, this genus regarded as a sister group of genus Halictus. In this study, a total of two genera seven species were reviewed from Korean peninsula (three Halictus, four Seladonia) with three new records (Halictus hedini hedini, Seladonia confusa, S. henanensis). A key to species and images of adult are provided.

The present study was made to assess annual changes on seasonal occurrence of Apiformes, commonly known as bees, as global warming apparently happens. Bees were collected from ten sites using a malaise trap for each site, and sample collection was made every two weeks from April to September in 2011 to 2014. In overall diversity, abundance and richness of bees appeared higher in northern sites, particularly Gwangneung and Hongcheon, than southern. The abundance of bees declined sharply in 2013 and decreased even further in 2014. Among the bee families the most decreased families were Halictidae and Andrenidae. In order to see the effect of annual temperature fluctuation correlation analysis was used with collection data and weather data. However, the result indicated that the decline of the bees was not significantly affected by changes of temperature although most of the bee families except Halictidae showed negative relation with temperature data(p < 0.05). In addition we also analysed the bee collection data and flowering data during spring in Gwangneung. Dufrene-Legendre indicator species analysis (ISA) for latitudinal sites identified seventeen indicator species (p < 0.05) that were limited to northern region.

A total of 50 species under two genera in the family Andrenidae are listed from Korea based on the examination of specimens in several depositories and literatural review. Andrena kyusani Kim & Kim, 1989 is found to be a junior synonym of A. longitibialis Hirachima, 1961.

초 록 한국산 애꽃벌과에 대한 분류 연구 중 2001년도에 채집된 표본 중에서 Larandrena 아속의 Andrena fukuiana Hirashima et Haneda와 Euandrena 아속의 Andrena luridiloma Strand 두 종이 새로 분류 동정되어 이에 보고한다.