Feathered Gothic
Tholera decimalis
Species account (old)
Robson regarded this species as 'Generally distributed [...] but not very common.' Since then it has increased somewhat [...] J. P. Robson noted it as rare in Teesdale in 1927, and I. Findlay has never taken it in the Upper Teesdale trap. Otherwise TCD has often taken it on Waldridge Fell since 1946, and in the Chester-Ie-Street trap since 1952 and most of the permanent traps take it intermittently, as at Crook, Hamsterly Forest, Durham University Field Station, Bolam and Sacriston. During the 1970's D. A. Sheppard and M. Eyre found it at several stations in the Derwent valley, and the former took it in Trimdon Grange Quarry N.R. on 21 August 1978, one of the Magnesian Limestone quarries. It is just as widespread as the last species [Tholera cespitis] in Durham but never so numerous [...] It is on the wing from late July to earIy September [...].
Statistics
| Records | 151 |
|---|---|
| Individuals | 189 |
| Largest Sample | 6 |
| First Recorded | 1865 |
| Last Recorded | 2023 |
| Earliest Adult Record | 24/07 |
| Latest Adult Record | 28/09 |
| Monad Coverage | 2.1% |
| Hexad Coverage | 52.4% |
Map
This map shows all records of Feathered Gothic - Tholera decimalis in the Durham (VC66) database per monad (1km grid square). The map can be explored further by zooming and panning, can be reset using the button on the left, and can be filtered by selecting the era. Click on a monad to view a full list of species recorded in it, or its containing hexad (10km grid square).
Map (image)
The distribution of Feathered Gothic - Tholera decimalis is additionally shown in the image below. This is to allow for backwards compatibility with older browsers that cannot load the map above.
Week graph
This graph shows the County Durham (VC66) records of Feathered Gothic - Tholera decimalis per 7-day period, differentiated by life stage. Hover over/tap the graph to see an exact count of records at that point in time. Hover over/hold the life stage legend to highlight a particular life stage; click on a life stage label to remove it from the graph. The graph can be filtered further by selecting the era.
The graphs below show the total records and individuals of Feathered Gothic - Tholera decimalis in County Durham (VC66) per time period. Hover over/tap the graph to see an exact number of records and individuals at a particular point in time. Hover over/hold a label to highlight a particular metric; click on a metric label to remove it from the graph.
Era graph
Year graph
Gallery
This gallery shows images of Feathered Gothic - Tholera decimalis. Clicking on a photo opens it in a large lightbox with a full caption, and the arrow buttons move between photos. If you would like to contribute any photographs, particularly of any stages not captured here, please email admin@durhammoths.org. Most photos on this website have been taken by County Durham (VC66) recorders, but please note that not all have been taken in the county.
Foodplants
This is a list of foodplants known to be used by the larval stages of Feathered Gothic - Tholera decimalis in the UK.
Habitats
This is a list of habitats that Feathered Gothic - Tholera decimalis is known to occur in within the UK.
Habitat and foodplant information derived from Cook, P.M.; Tordoff, G.M.; Davis, A.M.; Parsons, M.S.; Dennis, E.B.; Fox, R.; Botham, M.S.; Bourn, N.A.D. (2022). Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2022. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/33a66d6a-dd9b-4a19-9026-cf1ffb969cdb