Photo © Mike Wall
Old World Webworm
Hellula undalis
Checklist Number63.061 [B&F: 1360]
Verification
Record will require further evidence, at least a good photograph, unless CMR is aware recorder has confidence in identification
Classification
| Family: | Crambidae |
| Subfamily: | Glaphyriinae |
| Genus: | Hellula |
| Species: | undalis |
| Authority: | (Fabricius, 1781) |
Very rare immigrant (less than 10 previous UK records) from the tropics of the Old World, where widespread. This species is presumed to have arrived on these shores as an immigrant from Africa on the basis of a specimen taken at a light-trap near East Prawle, Devon, on 28 September 1967. A subsequent increase in the frequency of its occurrence hints at an origin closer to home. Up to the end of 2008, there were three records in the region, all in October, including one from well inland in Hampshire and one from the Isle of Wight.
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 |
|---|---|---|---|---|
| Freshwater (SZ38) | 26/10/1989 | one | Sam Knill-Jones | Adult |
VC11 South Hampshire
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Hurn (SZ19) | 16/10/2001 | one | Mike Jeffes | Adult |
| Lymington (SZ39) | 19/12/2015 | one | Alec Harmer | Adult |
| Marchwood (SU30) | 30/09/2023 | one | Chris Thain | Adult |
| Fareham (SU50) | 01/10/2023 | one | Keith Wheeler | Adult |
| Fareham (SU50) | 01/10/2023 | one | Keith Wheeler | Adult |
VC12 North Hampshire
| Site | Date | Quantity | Recorder | Stage |
|---|---|---|---|---|
| Northwood (SU43) | 12/10/2006 | one | Reg A Bell | Adult |
