Calamia tridens
In 3 days ~10% in a week ~20%
Calamia tridens, the Burren Green, is a moth of the family Noctuidae. The wingspan is 37–42 mm. The length of the forewings is 17–18 mm. Whitish green, of the o more or less suffused with grey except along costa, showing a pale curved outer band; fringe white; — in ab. immaculata Stgr. the whole forewing is uniformly green, with no race of a white reniform. and the hindwings of the male are not fuscous; — ab. thalassina ab. nov. [Warren] has the forewing glossy dark sea-green, with the outer half of fringe greenish; the hindwing green flushed with
darker green and the veins green: head and thorax sea green like the forewings; the abdomen white as in typical virens: the description is made from 1 male and 2 females in the Tring Museum, unfortunately without locality label, but probably of German origin; 1 female has a diffuse whitish smear on the discocellular, the others are immaculate: the ab. rufata ab. nov. [Warren] has the reniform filled up with rufous fuscous or with the white discocellular edged with rufous, and the whole hindwing brownish grey with the fringe white.
The moth flies in one generation from late June to September.[1] The larvae feed... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Burren Green sighting in Prague on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 436th most-seen of the 724 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.
July
In that month about 10% of wildlife watchers report a Burren Green in Prague on a given day, against under 5% in August to June, the lowest months. That is one of Prague's wettest months, with about 80 mm of rain against 30 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Burren Green sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 3 cities where we can rate Burren Green sightings, Prague ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Berlin (Germany, under 5%).
Same family: Noctuidae
The closest relatives of the Burren Green that you can see in Prague (family Noctuidae, Cutworm Moths and Allies) are Silver Υ (about 10%), Large Yellow Underwing (about 10%) and Knot Grass Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Burren Green is recorded against all the insects logged in Prague (11 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.
