Where has the Hydropsyche instabilis been recorded?

Hydropsyche instabilis occurrence evidence comes from 3,259 records in 20 countries and territories, from 1896 to 2022. Most records come from Austria.

• 3,259 records
• 20 places
• 73 years recorded
• Insecta class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: August. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where Hydropsyche instabilis has been recorded

The countries below show where occurrence evidence exists for Hydropsyche instabilis. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.