Published online by Cambridge University Press: 31 May 2012
The North American species were discussed by Fall (1923), under the name Agaporus Zimmermann (1919: 192) . However, as has been pointed out by Giugnot and F. Balfour-Browne, Agaporus, with Hydroporus oblongus Stephens as its type, is a synonym of Laccornis Des Gozis (1914: 111). Des Gozis proposed Laccornis as a subgenus of Hydroporus, with H. oblongus as the type and only species mentioned.