62.025 Dioryctria sylvestrella (Chequered Pine Knot-horn)
ws: 28-35mm (UKMoths); Jul-Aug; pines (Pinus spp); NS-B in SE England, first recorded in Britain 2001
Dioryctria sylvestrella §4 male
ID: Very similar to other British Dioryctria species; see Dioryctria for more information
External: Averages larger; smoothly curved subterminal line with a single dentation convex to the termen.
Male genitalia: Apex of valva sinuate with a short hook-like apical spine; aedeagus lacks any strong basal cornuti
Female genitalia: clear hyaline area between sclerotised ductus bursae and spiny signa of bursa copulatrix
External: Averages larger; smoothly curved subterminal line with a single dentation convex to the termen.
Male genitalia: Apex of valva sinuate with a short hook-like apical spine; aedeagus lacks any strong basal cornuti
Female genitalia: clear hyaline area between sclerotised ductus bursae and spiny signa of bursa copulatrix
§1 Dungeness, Kent; 25/07/2017
§2 Orlestone Forest, Kent; 26/07/2018; male; fw 13.0mm
§3 Orlestone Forest, Kent; 26/07/2018; female; fw 11.6mm!
§4 Orlestone Forest, Kent; 12/08/2020; male; fw 13.2mm
All images © Chris Lewis
§2 Orlestone Forest, Kent; 26/07/2018; male; fw 13.0mm
§3 Orlestone Forest, Kent; 26/07/2018; female; fw 11.6mm!
§4 Orlestone Forest, Kent; 12/08/2020; male; fw 13.2mm
All images © Chris Lewis
Page published 28/07/2017 (§1) | §2&3 added 27/05/2019 | §4 added 06/02/2021
