Pammene ignorata, giganteana, argyrana, suspectana, albuginana
|
These 5 species all have a dark forewing with a whitish dorsal blotch that does not extend towards the costa and well-marked white costal strigulae in the apical half.
P.ignorata |
P.giganteana |
P.argyrana |
P.suspectana |
P.albuginana |
|
Flight |
May-Jul |
Mar-May |
Apr-May |
May-Jun |
May-Jun |
Foodplant |
Lime / Elm |
Oak |
Oak |
Ash |
Oak |
Wingspan |
10-12 mm |
14-16mm |
10-13mm |
11-13mm |
9-13mm |
Male hindwing |
? |
broad black dorsum & termen |
entire black border |
black with a pale subcostal band |
black with a pale subcostal band |
P.giganteana can usually be identified by its early flight season and large size, more elongate forewing, obscure dorsal blotch and in the male the hindwing is pale along most of the costa and middle with a broad blackish border along the dorsum and termen.
Males of P.argyrana can be identified by a black border around the costal terminal and dorsal margins of the hindwing surrounding a pale centre.
The rest require genital determination
Males of P.argyrana can be identified by a black border around the costal terminal and dorsal margins of the hindwing surrounding a pale centre.
The rest require genital determination
Male genitalia
P.albuginana lacks saccular setae (these are drawn in error in MBGBI5.2 p336 fig349), present in the other 4 species
P.giganteana has a deep concavity of the saccular margin, shallower in the other 4 species
P.ignorata has only 2 or 3 saccular setae on each valva while in P.argyrana and P.suspectana there are usually 8-10
P.argyrana and P.suspectana have very similar male genitalia but are readily distinguished on hindwing features.
P.giganteana has a deep concavity of the saccular margin, shallower in the other 4 species
P.ignorata has only 2 or 3 saccular setae on each valva while in P.argyrana and P.suspectana there are usually 8-10
P.argyrana and P.suspectana have very similar male genitalia but are readily distinguished on hindwing features.
Female genitalia
Page published 06/07/2023