The header of the website, featuring the micro moth Olethreutes arcuella

Kent Moth Group


The Triangle

Heterogenea asella

Family: Limacodidae

RES: 53.002 B&F: 174

Verification Grade (Adult):

A Red Data Book species, in Kent this moth is clustered around the Elham Vally/Barham Downs and Orlestone areas. However, as can be seen from the map, it has been found away from the known 'honeypot' sites and so it could be lurking in less well known Oak and Beech woodland in the County.

This species is really quite small, especially the male with a wing length of just 5-7mm, making it easily confused with some micros. For this reason, it could potentially be overlooked in suitable habitat.

Flight Season: Flies in a narrow season starting in late June and ending in early August.

© Ross Newham

Quick Navigation:

Distribution in Kent

The map below shows the distribution of records of The Triangle (Heterogenea asella) within Kent. Use the control below to show data for a certain time period. If you've got a dot to add, please submit your records to us. Click here for more information on how to submit data.

Filter by Time Period:AllPre-19501950 - 20002000 - 2022


The graph below shows at which time of the year The Triangle (Heterogenea asella) can be expected to be recorded in Kent. Hover over the graph to see exact figures for each period of the year, and use the controls below to filter by VC and time span:

Filter by VC:AllVC15VC16

Filter by Time Period:AllPre-20002000 - 2022

Photo Gallery

Below is a gallery of The Triangle (Heterogenea asella) images from Kent. If you would like to contribute any photographs, please email

Reporting Rate

The graph below shows how the number of records submitted The Triangle (Heterogenea asella) to the Kent database has varied since 1950. Hover over the graph to see exact figures for each year, and use the control below to filter by a certain VC.

Filter by VC:AllVC15VC16

External Links

More information about The Triangle (Heterogenea asella) can be seen on the external pages listed below: