A new species of Hexantheda Ogloblin (Hymenoptera, Colletidae), a genus of bees with labial palpi of variable number of segments
Two new species of Coelinius Nees (Hymenoptera, Braconidae, Alysiinae) from Mexico
An annotated distributional checklist of Vespidae (Hymenoptera: Vespoidea) of India
Two new species of Pseudapis Kirby, 1900 (Hymenoptera: Halictidae: Nomiinae) from Africa
The Xiphydria palaeanarctica group from Japan (Hymenoptera, Xiphydriidae)
A new subgenus and three new species of leafcutter bees, Megachile (Austrosarus) (Hymenoptera, Megachilidae) from central Brazil
Review of Afrotropical Glenosema Kieffer (Hymenoptera, Bethylidae) with description of 13 new species
A review of the Mutillidae (Hymenoptera) of Yemen
Description of the larval instars of Gonatopus bartletti Olmi, 1984 (Hymenoptera: Dryinidae)
Biodiversity of the aculeate wasps (Hymenoptera: Aculeata) of the Arabian Peninsula: Chrysidoidea, Dryinidae