Dark Dagger
Acronicta tridens
Species account (old)
The only satisfactory record that we have for either county is of one bred through from the (quite distinctive) larva taken from an apple tree in TCD's garden at Chester-le-Street. It emerged on 12 June 1964. In this species imagines can only be identified satisfactorily by an examination of the genitalia. In set specimens this can be done by removing the scales at the end of the abdomen with preferably a fine bristle oil-painting brush. A fine illustration of the exposed genitalia is now available (in 'Moths of the British Isles', B. Skinner, 120. Fig. 40). and it is to be hoped that the distribution of the two species will now become clearer.
Statistics
| Records | 13 |
|---|---|
| Individuals | 16 |
| Largest Sample | 3 |
| First Recorded | 1963 |
| Last Recorded | 2023 |
| Earliest Adult Record | 02/07 |
| Latest Adult Record | 06/07 |
| Monad Coverage | 0.3% |
| Hexad Coverage | 14.3% |
Map
This map shows all records of Dark Dagger - Acronicta tridens 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 Dark Dagger - Acronicta tridens 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 Dark Dagger - Acronicta tridens 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 Dark Dagger - Acronicta tridens 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
There are no photos of Dark Dagger - Acronicta tridens on the website. If you would like to contribute any photographs please email admin@durhammoths.org.
Foodplants
This is a list of foodplants known to be used by the larval stages of Dark Dagger - Acronicta tridens in the UK.
Habitats
This is a list of habitats that Dark Dagger - Acronicta tridens is known to occur in within the UK.