07.012 Nematopogon schwarziellus (Sandy Long-horn)
ws: 14-17mm; May-Jun; larva feeds on dead leaves; common in woodland and more open habitats throughout UK
Nematopogon schwarziellus §1 male
ID: Hindwing narrow scales widely distributed; fw pale ochreous (not greyish ochreous); ws 14-17mm > N.schwarziellus
The male hindwing has uniformly narrow scales, the female has a marginal band of broader scales.
The forewing differs from that of N.metaxella in having a more acutely angled apex and less prominent reticulation. See N.metaxella for more detail
Male genitalia: N.schwarziellus has a small spine at the apex of the valva, absent in all other Nematopogon species. See N.swammerdamella for more detail.
Female genitalia: N.schwarziellus is shown at dissection group but I have not seen any comparative information for distinction from similar species
The male hindwing has uniformly narrow scales, the female has a marginal band of broader scales.
The forewing differs from that of N.metaxella in having a more acutely angled apex and less prominent reticulation. See N.metaxella for more detail
Male genitalia: N.schwarziellus has a small spine at the apex of the valva, absent in all other Nematopogon species. See N.swammerdamella for more detail.
Female genitalia: N.schwarziellus is shown at dissection group but I have not seen any comparative information for distinction from similar species
Dissection
Male genitalia
Female genitalia
§1 Whiteshill, Gloucestershire; 13/05/2011; male; fw 7.1mm
§2 Hadleigh downs, Essex; 22/05/2012; female; fw 7.0mm
§3 Noar Hill, Hampshire; 18/05/2014; male; fw 7.8mm
§4 Strumpshaw Fen, Norfolk; 25/05/2018; male; fw 7.1mm
All images © Chris Lewis
§2 Hadleigh downs, Essex; 22/05/2012; female; fw 7.0mm
§3 Noar Hill, Hampshire; 18/05/2014; male; fw 7.8mm
§4 Strumpshaw Fen, Norfolk; 25/05/2018; male; fw 7.1mm
All images © Chris Lewis
Page published Aug 2011 | §2 added 15/06/2012 | §3 added 26/05/2014 | §4 added 10/03/2019
