Atractomorpha similis
In 3 days ~10% in a week ~20%
Atractomorpha similis, commonly known as the northern grass pyrgomorph, is a species of grasshopper in the genus Atractomorpha. It occurs in Australia. Atractomorpha similis is a member of the genus Atractomorpha, which is part of family Pyrgomorphidae. First described by Bolívar in 1884, it was long classified as a southern variant of A. crenaticeps. However, in 1960 Banerjee and Kevan distinguished it on morphological grounds. Synonyms include A. australiana and A. dentifrons.
Atractomorpha similis averages 40 millimetres (1.6 in) in length. The species' compact body is tapered at the head and abdomen. This grasshopper relies on camouflage to avoid predators, rarely attempting escape. Atractomorpha similis (as with other members of its genus) is depauperate in heterochromatin, though the total amount of that DNA varies between populations. The species is highly polymorphic in its chromosomes, each of which exists in 10 to 50 morphs. Males from Australia carry between one and ten extra copies of chromosome A9, with one being the most common in natural populations.
Atractomorpha similis is a tropical and temperate grasshopper... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Daintree National Park | 🇦🇺 Australia |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brisbane | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Northern Grass Pyrgomorph sighting in Brisbane on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 914th most-seen of the 1083 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Northern Grass Pyrgomorph in Brisbane on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Northern Grass Pyrgomorph 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.
Only Brisbane, in our data
Brisbane is the only city on Wallace's Line with enough records to rate Northern Grass Pyrgomorph sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Northern Grass Pyrgomorph is recorded against all the insects logged in Brisbane (6 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.
