Horelophus walkeri rediscovered: adult morphology and notes on biology (Coleoptera: Hydrophilidae)

Martin Fikáček, Richard A. B. Leschen, Alfred F. Newton, Nicole Gunter

Pages	129-146
Citation	FIKÁČEK, Martin, LESCHEN, Richard A. B., NEWTON, Alfred F. a GUNTER, Nicole. Horelophus walkeri rediscovered: adult morphology and notes on biology (Coleoptera: Hydrophilidae). Acta Entomologica Musei Nationalis Pragae. Prague: National Museum, 2012, 52(1), 129-146. ISSN 0374-1036 (print) 1804-6487 (online). Also available from: https://www.nm.cz/en/periodicals/aemnp/52-1/horelophus-walkeri-rediscovered-adult-morphology-and-notes-on-biology-coleoptera-hydrophilidae

Pages

129-146

Citation

FIKÁČEK, Martin, LESCHEN, Richard A. B., NEWTON, Alfred F. a GUNTER, Nicole. Horelophus walkeri rediscovered: adult morphology and notes on biology (Coleoptera: Hydrophilidae). Acta Entomologica Musei Nationalis Pragae. Prague: National Museum, 2012, 52(1), 129-146. ISSN 0374-1036 (print) 1804-6487 (online). Also available from: https://www.nm.cz/en/periodicals/aemnp/52-1/horelophus-walkeri-rediscovered-adult-morphology-and-notes-on-biology-coleoptera-hydrophilidae

Acta Entomologica Musei Nationalis Pragae | 2012/52/1

Horelophus walkeri Orchymont, 1913, the single representative of the enigmatic hydrophilid subfamily Horelophinae, is redescribed and illustrated based on recently collected specimens and its external morphology is briefly compared with other groups of Hydrophilidae. The species is hygropetric, inhabiting the spray zone and still waters along streams and waterfalls; its habitat preferences are discussed based on direct observation. A list of known specimens of H. walkeri is presented and its distribution is summarized.