Agriotes lineatus
In 3 days ~10% in a week ~30%
Agriotes lineatus, commonly known as lined click beetle, is a species from the family Elateridae. It is common and native to most parts of Europe and also to parts of western Asia and the Near East. Further, it is invasive and has been introduced into two areas of North America, possibly also into Australia and other regions. In North America, it is found now in Atlantic Canada, western Canada (British Columbia) and Washington State (U.S.). The larvae (wireworms) are a significant agricultural pest for potatoes, maize/corn, strawberries and cereal crops, attacking the roots, tubers and seeds. For managing this pest in crop fields, an integrated approach is recommended in order to minimize the harmful environmental effect of pesticides. This involves monitoring the pest populations with pheromone or larval traps, and if damaging numbers are detected, non-pesticide management measures are applied. These include, for example, crop rotation or timing tillage and irrigation in a way so that the eggs and young larvae are desiccated in the top layer of the soil. The adult beetles of A. lineatus are brownish black and about 7.5–11 mm long. The species is named for the longitudinal stripes on the elytra. These stripes are usually more prominent in A. lineatus than in some other species of Agriotes, for example compared to A. sputator or A. modestus. The pronotum of A. lineatus is typically as long as or slightly longer than wide, in contrast to the extremely similar Agriotes proximus (also with very similar striped elytra), where the pronotum is usually slightly wider than long. Apart from the morphological similarities, A. lineatus and A. proximus have the same pheromones, the larval stages are indistinguishable and they share >99% similarity in the DNA sequence of the mitochondrial cytochrome c oxidase subunit I gene. Observations under semi-natural conditions in field cages suggested a life cycle of at least 3 years in central Germany with A. lineatus going through up to 12 larval stages. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Lined Click Beetle sighting in Vancouver on a given day, based on 39 verified sightings from GBIF citizen-science data. It is the 147th most-seen of the 482 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Lined Click Beetle in Vancouver on a given day, against under 5% in June to March, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Lined Click Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 6 cities where we can rate Lined Click Beetle sightings, Vancouver has the highest daily chance: under 5%. Next come Helsinki (Finland, under 5%) and Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Lined Click Beetle is recorded against all the insects logged in Vancouver (39 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
