Review Of The Nearctic Gallwasp Species Of The Genus Bassettia Ashmead, 1887, With Description Of New Species (Hymenoptera: Cynipidae: Cynipini) Author Melika, G Author Abrahamson, WG text Acta Zoologica Academiae Scientiarum Hungaricae 2007 2007-05-31 53 2 131 148 journal article 10.5281/zenodo.12585553 2064-2474 12585553 Callirhytis aquaticae ASHMEAD , 1887 Callirhytis aquaticae ASHMEAD 1887: 144 . Female, gall. Type material examined – Holotype female “Type No. 2809 USNM ”, “Collection Ashmead” in the USNM . This is the only known specimen of this species. Biology – The only known female was cut from a “hard knotty swelling” gall on Q. nigra L. in March ( ASHMEAD 1887 ). Such stem swelling-like galls are typical for Callirhytis species but are not typical of Bassettia . Distribution – USA : Florida ( ASHMEAD 1887 ).