Дробныя і сярэдняга памеру наезнікі. Даўжыня 5-20 мм, з доўгім і вельмі тонкім у падставе брушкам. Метасома прымацоўваецца высока на прападэуме. Вусікі 14-членікавыя ў самак і 13-членікавыя ў самцоў. Формула шчупікаў поўная: 6,4. У пярэднім крыле адсутнічаюць югальная лопасць і радыямедыяльная жылка. Дарослыя асобіны сустракаюцца на парасонавых кветках. Па сваім спосабе жыцця гэта другасныя клептапаразітоіды або эктапаразітоіды пчол і вос.
Паводле розных крыніц, да роду Gasteruption адносяць да 64 відаў:
- Gasteruption assectator (Linnaeus, 1758) g b (wild carrot wasp)
- Gasteruption boreale (Thomson, 1883) g
- Gasteruption canariae Madl, 1991 g
- Gasteruption caucasicum (Guerin-Meneville, 1844) g
- Gasteruption corniculigerum Enderlein, 1913 g
- Gasteruption dilutum Semenov, 1892 g
- Gasteruption dimidiatum Semenov, 1892 g
- Gasteruption diversipes (Abeille de Perrin, 1879) g
- Gasteruption dolichoderum Schletterer, 1889 g
- Gasteruption erythrostomum (Dahlbom, 1831) g
- Gasteruption expectatum Pasteels, 1957 c g
- Gasteruption fallaciosum Semenov, 1892 g
- Gasteruption flavicuspis Kieffer, 1911 c g
- Gasteruption floreum Szepligeti, 1903 g
- Gasteruption formilis Alekseev, 1995 g
- Gasteruption formosanum Enderlein, 1913 g
- Gasteruption forticorne Semenov, 1892 g
- Gasteruption foveiceps Semenov, 1892 g
- Gasteruption freyi (Tournier, 1877) g
- Gasteruption goberti (Tournier, 1877) g
- Gasteruption hastator (Fabricius, 1804) g
- Gasteruption hungaricum Szepligeti, 1895 g
- Gasteruption ignoratum Kieffer, 1903 g
- Gasteruption insidiosum Semenow, 1892 g
- Gasteruption jaculator (Linnaeus, 1758) g
- Gasteruption japonicum Cameron, 1888 g
- {{bt-latbel|Gasteruption kaweahense]] b
- Gasteruption lacoulee Jennings, Krogmann & Parslow, 2015 g
- Gasteruption laticeps (Tournier, 1877) g
- Gasteruption lugubre Schletterer, 1889 g
- Gasteruption maquis Jennings, Krogmann & Parslow, 2015 g
- Gasteruption merceti Kieffer, 1904 g
- Gasteruption minutum (Tournier, 1877) g
- Gasteruption nigrescens Schletterer, 1885 g
- Gasteruption nigritarse Thomson, 1883 g
- Gasteruption opacum (Tournier, 1877) g
- Gasteruption oriplanum Kieffer, 1911 g
- Gasteruption ortegae Madl, 1991 g
- Gasteruption oshimense Watanabe, 1934 g
- Gasteruption parvicollarium Enderlein, 1913 g
- Gasteruption paternum Schletterer, 1889 g
- Gasteruption pedemontanum (Tournier, 1877) g
- Gasteruption phragmiticola Saure, 2006 g
- Gasteruption poecilothecum Kieffer, 1911 g
- Gasteruption psilomma Kieffer, 1904 g
- Gasteruption rufescenticorne Enderlein, 1913 g
- Gasteruption sarramea Jennings, Krogmann & Parslow, 2015 g
- Gasteruption schlettereri Magretti, 1890 g
- Gasteruption schossmannae Madl, 1987 g
- Gasteruption scintillans Pasteels, 1957 c g
- Gasteruption sinarum Kieffer, 1911 g
- Gasteruption sinepunctatum Zhao, van Achterberg & Xu, 2012 g
- Gasteruption sinicola g
- Gasteruption striatum b
- Gasteruption subtile (Thomson, 1883) g
- Gasteruption syriacum Szepligeti, 1903 g
- Gasteruption terebrelligerum Enderlein, 1913 g
- Gasteruption tonkinense Pasteels, 1958 g
- Gasteruption tournieri Schletterer, 1885 g
- Gasteruption transversiceps Pasteels, 1958 g
- Gasteruption undulatum (Abeille de Perrin, 1879) g
- Gasteruption variolosum (Abeille de Perrin, 1879) g
- Gasteruption varipes (Westwood, 1851) g
- Gasteruption visaliae b
Крыніцы даных: i=ITIS,[1] c = Catalogue of Life,[2] g = GBIF,[3] b = Bugguide.net[4]
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