Taxonomic study of Baeosega and its allies, with description of a new species of Nipponosega (Hymenoptera, Chrysididae, Amiseginae)

Abstract

Three related genera of Asian Amiseginae, Baeosega Krombein, Nipponosega Kurzenko & Lelej, and Okinawasega Terayama are revised. The male of N. yamanei Kurzenko & Lelej and the female of O. eguchii Terayama are newly described. The following new synonymies are proposed: Baeosega humida Krombein, 1984 = B. laticeps Krombein, 1984, syn. nov.; Nipponosega yamanei Kurzenko & Lelej, 1994 = N. kantoensis Nagase, 1995, syn. nov. A new species of Nipponosega, N. lineatasp. nov. is described based on a female from Thailand. A key to genera and species of Baeosega, Nipponosega and Okinawasega is given.

Taxonomic revision of the genus Loboscelidia Westwood, 1874 (Hymenoptera: Chrysididae: Loboscelidiinae) from Vietnam

“…straddles the host egg and punctures a small hole with her mandibles and lays eggs (Readshaw 1965), and Amisega sp. and Nipponosega yamanei Kurzenko & Lelej, 1994 transport the host egg (Windsor et al 1996;Mita 2021). Host carriage is also well known in the bethylid genera Cephalonomia Westwood, 1833, Epyris Westwood, 1832, Goniozus Förster, 1856and Muellerella Saussure, 1892(Rubink & Evans 1979Rosenheim 1987;Collatz & Steidle 2008), and is common in other lower Aculeata Latreille, 1802, such as Ampulicidae Shuckard, 1840, Scoliidae Latreille, 1802 and Tiphiidae Leach, 1815 (Iwata 1971;Gess 1984;O'Neill 2001).…”

Taxonomy of Perissosega Krombein (Hymenoptera: Chrysididae, Amiseginae), with description of a new species from Japan

“…nov. is apparently slender compared to P. venablei. However, the body proportion of Amiseginae should be affected by the shape of host egg (Mita, 2021). This intraspecific difference can make it difficult to identify a species in some cases, but it can also help determine the host.…”