Trap-nesting wasps and bees : life histories, nests, and associates

by Krombein, Karl V., Krombein, Karl V.
Published 1967

Biosystematic studies of ceylonese wasps, XXI : a revision of the bethylinae and epyrinae

by Krombein, Karl V.

Biosystematic studies of ceylonese wasps, XIV : a revision of carinostigmus tsuneki (hymenoptera : sphecoidea : pemphredonidae)

by Krombein, Karl V.
Published 1980

Biosystematic studies of ceylonese wasps, XVII : a revision of Sri Lankan and South Indian bembix fabricius (hymenoptera : sphecoidea, nyssonidae)

by Krombein, Karl V.
Published 1987

Biosystematic studies of Ceylonese Wasps XIX : natural history notes in several families (Hymenoptera : Eumenidae, Vespidae, Pompilidae, and Crabronidae) /

by Krombein, Karl V.
Published 1991

Biosystematic studies of ceylonese wasps, XX : a revision of tachysphex Kohl, 1883, with notes on other oriental species (Hymenoptera ; sphecidae : larrinae)

by Krombein, Karl V
Published 1994

Biosystematic studies of ceylonese wasps, IX: a monograph of the tiphiidae : (Hymenoptera: vespoidea) / Karl V. Krombein

by Krombein, Karl V.

Biodiversity of the domatia occupants (ants, wasps, bees, and others) of the Sri Lankan Myrmecophyte Humboldtia laurifolia Vahl (Fabaceae) /

Published 1999