Dialectica scalariella
In 3 days ~10% in a week ~20%
Dialectica scalariella (echium leaf miner) is a moth of the family Gracillariidae. It is found from France to the Iberian Peninsula, Italy and the Balkan Peninsula. Recently an imago was found in Great Britain. It was introduced in Australia for the biological control of the weed Echium plantagineum and has since spread to New Zealand.
The larvae feed on Anchusa strigosa, Borago, Cynoglossum creticum, Echium aculeatum, Echium giganteum, Echium plantagineum, Echium vulgare, Myosotis latifolia and Symphytum officinale. They mine the leaves of their host plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Echium Leaf Miner sighting in Porto on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 457th most-seen of the 498 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report an Echium Leaf Miner in Porto on a given day, against under 5% in July to April, the lowest months. Those are among Porto's driest months, with about 45 mm of rain a month against 140 mm in January.
2nd of 2
Of the 2 cities where we can rate Echium Leaf Miner sightings, Porto ranks 2nd at under 5%. The best odds are in Auckland (New Zealand, about 10%).
Same order: Lepidoptera
The closest relatives of the Echium Leaf Miner that you can see in Porto (order Lepidoptera, Butterflies and Moths) are Speckled Wood (about 30%), Red Admiral (about 20%) and Double-Striped Pug (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Echium Leaf Miner is recorded against all the insects logged in Porto (5 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.
