15.026 Parornix fagivora (Beech Parornix)
ws: 9–10mm; bivoltine May, Aug; beech (Fagus sylvatica); uncommon in woodland in S & SE.England
ID: Head rough-haired; forewing without silvery-white spots or strigulae > Parornix which require genital dissection. (see Parornix for more details)
Male genitalia:
1. No sclerotised portion of vesica beyond the aedeagal sheath
2. Saccus slightly broader than long
3. Valva: lateral margin fairly evenly rounded
4. Juxta lobes medium length, broad for most of length then narrowing to a point in the apical 1/4.
Female genitalia:
1. Ostium large, incised from the posterior margin of the sterigma and occupying most of the length of the sterigma; strongly sclerotised lateral margins of the ostium; strong sclerotisation of introitus vaginae about 2x as long as broad.
2. DB slightly longer than CB.
3. DB narrows abruptly anterior to IV, kinks and then gradually expands to junction with CB; DB spiculate for much of its length.
4. 2 round smudgy signa with some surrounding spiculation.
Male genitalia:
1. No sclerotised portion of vesica beyond the aedeagal sheath
2. Saccus slightly broader than long
3. Valva: lateral margin fairly evenly rounded
4. Juxta lobes medium length, broad for most of length then narrowing to a point in the apical 1/4.
Female genitalia:
1. Ostium large, incised from the posterior margin of the sterigma and occupying most of the length of the sterigma; strongly sclerotised lateral margins of the ostium; strong sclerotisation of introitus vaginae about 2x as long as broad.
2. DB slightly longer than CB.
3. DB narrows abruptly anterior to IV, kinks and then gradually expands to junction with CB; DB spiculate for much of its length.
4. 2 round smudgy signa with some surrounding spiculation.
§1 New Forest, Hampshire; 03/09/2014; female; fw 4.9mm
§2 Covert Woods, Kent; 15/08/2022; female; fw 4.7mm
All images © Chris Lewis
§2 Covert Woods, Kent; 15/08/2022; female; fw 4.7mm
All images © Chris Lewis
Page published 23/05/2016 (§1) | §2 added 24/12/2022