63.115 Acentria ephemerella (Water Veneer)
ws: m13-17mm female usually brachypterous but a fully-winged form does occur which is larger than the male; Jul-Sep but the life of an individual is no more than 2 days as an adult; various pondplants especially Canadian waterweed (Elodea canadensis), pondweeds (Potomogeton spp); common in ponds, lakes and slow-flowing rivers. Males fly low over water and can swarm on hot nights. Females remain under water with mating occurring at the surface.
ID: Unique and unmistakable (once it has been recognised as a moth!)
Dissection
Male genitalia
§1 Strumpshaw Fen, Norfolk; 15/07/2008; male; fw 6.2mm
§2 Foulness, Essex; 21/06/2009; fw 6.0mm; male
§3 Westcliff-on-sea, Essex; 08/07/2010; male
§4 Westcliff-on-sea, Essex; 02/08/2018; male; fw 6.1mm
All images © Chris Lewis
§2 Foulness, Essex; 21/06/2009; fw 6.0mm; male
§3 Westcliff-on-sea, Essex; 08/07/2010; male
§4 Westcliff-on-sea, Essex; 02/08/2018; male; fw 6.1mm
All images © Chris Lewis
Page published 12/02/2012 | §4 added 17/02/2019