Asteromyia carbonifera
In 3 days ~10% in a week ~20%
Asteromyia carbonifera is a species of gall midges in the family Cecidomyiidae. It creates galls on Solidago plants. Females can lay up to 300 eggs at a time and often collect conidia of the fungus Botryosphaeria dothidea, which is deposited on the plant alongside the eggs. The larvae grow within the gall that the fungus creates, a form of mutualism. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Toronto | 🇨🇦 Canada | |
| 6 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 7 | Montreal | 🇨🇦 Canada | |
| 8 | Austin | 🇺🇸 United States | |
| 9 | Philadelphia | 🇺🇸 United States | |
| 10 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Carbonifera Goldenrod Gall Midge sighting in Everglades National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 439th most-seen of the 496 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.
April
In that month about 10% of wildlife watchers report a Carbonifera Goldenrod Gall Midge in Everglades National Park on a given day, against under 5% in May to March, the lowest months. That is one of Everglades National Park's driest months, with about 65 mm of rain against 240 mm in June.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Carbonifera Goldenrod Gall Midge sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Carbonifera Goldenrod Gall Midge sightings, Everglades National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Great Smoky Mountains National Park (United States, under 5%).
Same family: Cecidomyiidae
The closest relatives of the Carbonifera Goldenrod Gall Midge that you can see in Everglades National Park (family Cecidomyiidae, Gall and Forest Midges) are Sea Grape Gall Midge (about 10%), Stephomyia eugeniae (about 10%) and Asphondylia borrichiae (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Carbonifera Goldenrod Gall Midge is recorded against all the insects logged in Everglades National Park (5 verified sightings from 2019 to 2026), 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.
