Photo © Mike Wall
Gynnidomorpha alismana
Checklist Number49.108 [B&F: 0930]
Verification
Record requires retention of specimen until confirmed, and may require dissection. Consult with CMR if unsure
Classification
| Family: | Tortricidae |
| Subfamily: | Tortricinae |
| Genus: | Gynnidomorpha |
| Species: | alismana |
| Authority: | (Ragonot, 1883) |
Nationally scarce (Nb) in streams, small rivers and shallow pools in parts of Britain and southern Ireland. In Hampshire formerly common at three locations in the south, but after one at Titchfield Haven in 1978 not recorded until 2004, when one came to light in Southsea. Not recorded from the Isle of Wight since 1934. Wingspan 11-14 mm. Similar to G. minimana but distinguished by the less angulate median fascia of the forewing and the pre-apical spot which is usually strigulate or fractured in the tornal area [Bradley]. Larva feeds within flowering shoots of Water-plantain.
The abundance in each month is indicated as follows:
No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult | | | | | | | | | | | | |
| Larval | | | | | | | | | | | | |
Records by week (adult)
Records by week (larval)
VC10 Isle of Wight
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Alverstone (SZ58) | 1934 | one | E A C Stowell | Larval |
VC11 South Hampshire
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Titchfield Haven NNR (SU50) | 01/06/1978 | one | Richard J Dickson | Adult |
| Southsea (SZ69) | 02/08/2004 | one | J R Langmaid | Adult |
| Merritown Heath (SZ19) | 26/05/2017 | one | Dave Foot | Adult |
| Merritown Heath (SZ19) | 10/06/2021 | one | David Foot | Adult |