The Nearctic species of Pnigalio and Sympiesis (Hymenoptera: Eulophidae).

A reclassification of the European Tetrastichinae (Hymenoptera: Eulophidae) : revision of the remaining genera /
by: Graham, M. W. R. de V. (Marcus William Robert de Vere)
Published: (1991)

Dermatopelte Erdös & Novicky (Hymenoptera:Eulophidae) newly recorded from the Nearctic region, with description of two new species /
by: Burks, Roger A.
Published: (2004)

A new species of Emersonella (Hymenoptera:Eulophidae), parasitoid on weevil eggs (Coleoptera:Curulionidae), from Costa Rica /
by: Hansson, Christer
Published: (2004)

A revision of western Nearctic species of Torymus dalman (Hymenoptera, Torymidae) /
by: Grissell, Eric
Published: (1976)

Review of the Nearctic Alysiini (Hymenoptera, Braconidae) : with discussion of generic relationships within the tribe /
by: Wharton, Robert (Robert Alan)
Published: (1980)

A handbook of the families of Nearctic Chalcidoidea (Hymenoptera) /
by: Grissell, Eric
Published: (1997)

The taxonomy, distribution, and host preferences of Indo-Papuan parasitic wasps of the subfamily Ophioninae (Hymenoptera, Ichneumonidae) /
by: Gauld, Ian David
Published: (1981)

Indian chalcidoid parasitoids of the tetrastichinae (hymenoptera : eulophidae) /
by: Narendran, T. C., 1944-
Published: (2007)

The North American species of Heterosarus Robertson (Hymenoptera, Apoidea) /
by: Timberlake, P. H. (Philip Hunter), 1883-1981
Published: (1975)

Aphid parasites of Czechoslovakia. : A review of the Czechoslovak Aphidiidae (Hymenoptera).
by: Starý, Petr
Published: (1966)

Trichogramma and other egg parasitoids = Les trichogrammes et autres parasites oophages : 3rd International Symposium, San Antonio, TX, USA, September 23-27, 1990 /
Published: (1991)

The ants (Hymenoptera, Formicidae) of western Texas /
by: Moody, J. V.
Published: (1982)

A catalogue of the Nearctic Chalcidoidea (Insecta: Hymenoptera).
by: Peck, Oswald
Published: (1963)

Annotated keys to the genera of Nearctic Chalcidoidea (Hymenoptera) /
Published: (1997)

Neotropic Mesochorinae (Hymenoptera, Ichneumonidae) /
by: Dasch, Clement E.
Published: (1974)

The Formicidae (Hymenoptera) of Fennoscandia and Denmark /
by: Collingwood, C. A.
Published: (1979)

Biology of aphid parasites (Hymenoptera: Aphidiidae) with respect to integrated control.
by: Starý, Petr
Published: (1970)

Review of North American Exomalopsis (Hymenoptera, Anthophoridae) /
by: Timberlake, P. H. (Philip Hunter), 1883-1981
Published: (1980)

A review of the Braconidae (Hymenoptera) of the USSR = Obzor naezdnikov-brakonid (Hymenoptera) fauny SSSR /
by: Tobias, Vladimir Ivanovich
Published: (1975)

Key to genera of Scelionidae of the Holarctic region, with descriptions of new genera and species (Hymenoptera: Proctotrupoidea) /
by: Masner, Lubomir
Published: (1980)

Systematics and bionomics of Anthophora, the bomboides group and species groups of the New World (Hymenoptera, Apoidea, Anthophoridae) /
by: Brooks, Robert W.
Published: (1983)

The Sphecidae (Hymenoptera) of Fennoscandia and Denmark /
by: Lomholdt, O.
Published: (1975)

A revision of North American bees of the subgenus Cnemidandrena (Hymenoptera, Andrenidae) /
by: Donovan, B. J. (Barry James), 1941-
Published: (1977)

Nearctic species of Scelionidae (Hymenoptera: Proctotrupoidea) that parasitize the eggs of grasshoppers /
by: Muesebeck, Carl F. W. (Carl Frederick William), 1894-1987
Published: (1972)

The comparative internal larval anatomy of sawflies (Hymenoptera: Symphyta).
by: Maxwell, Doreen E.
Published: (1955)

Revision of the genus Pseudopanurgus of North America (Hymenoptera, Apoidea) /
by: Timberlake, P. H. (Philip Hunter), 1883-1981
Published: (1973)

A revision of the sawfly family Orussidae for North and Central America (Hymenoptera--Symphyta, Orussidae /
by: Middlekauff, Woodrow W., 1913-2013
Published: (1983)

Species of Spalangia Latreille in the United States National Museum collection (Hymenoptera: Pteromalidae) /
by: Burks, B. D. (Barnard DeWitt)
Published: (1969)

A systematic study of the genus Aphytis Howard (Hymenoptera, Aphelinidae) with descriptions of new species.
by: Compere, Harold
Published: (1955)

Aspilota-Wespen aus Niederösterreich, besonders solche der signifrons-Gruppe (Hymenoptera, Braconidae, Alysiinae) /
by: Fischer, Max, 1929-
Published: (1974)

Revisionary notes and keys to world genera of Scelionidae (Hymenoptera: Proctotrupoidea) /
by: Masner, Lubomir
Published: (1976)

Bees of the genus Ceratina in America north of Mexico (Hymenoptera: Apoidea) /
by: Daly, Howell V.
Published: (1973)

Bees of the new genus Ctenoceratina in Africa, South of the Sahara (Hymenoptera: Apoidea) /
by: Daly, Howell V.
Published: (1988)

Revision of the subfamily Macrocentrinae (Hymenoptera:Braconidae) in America north of Mexico /
by: Ahlstrom, Kenneth R. (Kenneth Roger), 1943-
Published: (2005)

Synopsis of Nearctic Inchneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera) /
by: Peck, Oswald
Published: (1964)

Synopsis of Nearctic Inchneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera).
by: Heinrich, Gerd H.
Published: (1960)