Grey Chi
Antitype chi
Species account (old)
[...] In Durham, the moth is listed for all parts of the county and taken in every trap, some workers reporting it as common. Over the last 50 years the proportions of ab. olivacea to the type has changed markedly. In the 1930's, '40's and '50's very few type specimens were seen except in western parts of the dales. At Chester-le-Street TCD did not have a single type-specimen until the early 1960's. Since then proportions of this form have increased steadily, the change corresponding very roughly with the closure of the coal mines.
Statistics
| Records | 488 |
|---|---|
| Individuals | 547 |
| Largest Sample | 8 |
| First Recorded | 1877 |
| Last Recorded | 2023 |
| Earliest Adult Record | 19/07 |
| Latest Adult Record | 13/10 |
| Monad Coverage | 3.0% |
| Hexad Coverage | 69.0% |
Map
This map shows all records of Grey Chi - Antitype chi 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 Grey Chi - Antitype chi 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 Grey Chi - Antitype chi 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 Grey Chi - Antitype chi 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 Grey Chi - Antitype chi taken by County Durham (VC66) recorders. 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.
Foodplants
This is a list of foodplants known to be used by the larval stages of Grey Chi - Antitype chi in the UK.
Habitats
This is a list of habitats that Grey Chi - Antitype chi is known to occur in within the UK.