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COSMOPTERIGIDAE : Chrysopeleiinae
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34.013 Sorhagenia lophyrella (Buckthorn Bud-borer)
ws: 8-11 (MBGBI4.1); May-Aug; buckthorn (Rhamnus cathartica); NS-A in S&SE.England
Sorhagenia lophyrella §1 male
ID: Externally indistinguishable from other Sorhagenia species
Male genitalia: According to MBGBI4.1, distinguished from its congeners by: sacculus very short, ampulla and cucullus of ~= length, two pointed projections of unequal length from the costa and a triangular heavily sclerotised juxta. Fig 83 (MBGBI4.1 p257) also illustrates a difference in the shape of the apex of the aedeagus in lateral view - this being more acutely angled in S.lophyrella.
Female genitalia: Differs from S.rhamniella mainly in the shape of the ostial sclerotisation
Male genitalia: According to MBGBI4.1, distinguished from its congeners by: sacculus very short, ampulla and cucullus of ~= length, two pointed projections of unequal length from the costa and a triangular heavily sclerotised juxta. Fig 83 (MBGBI4.1 p257) also illustrates a difference in the shape of the apex of the aedeagus in lateral view - this being more acutely angled in S.lophyrella.
Female genitalia: Differs from S.rhamniella mainly in the shape of the ostial sclerotisation
§1 Heydon, Cambridgeshire; 09/07/2024; male; fw 5.3mm; 3rd for Essex (politically now in Cambs, Heydon remains in North Essex VC)
§2 Heydon, Cambridgeshire; 12/06/2025; female; fw 5.6mm
All images © Chris Lewis
§2 Heydon, Cambridgeshire; 12/06/2025; female; fw 5.6mm
All images © Chris Lewis
Page published 16/08/2024 (§1) | §2 added 01/10/2025
