Therea petiveriana
In 3 days ~40% in a week ~70%
Therea petiveriana, variously called the desert cockroach, seven-spotted cockroach, domino cockroach, or Indian domino cockroach, is a species of crepuscular cockroach found in southern India. They are members of a basal group within the cockroaches. This somewhat roundish and contrastingly marked cockroach is mainly found on the ground in scrub forest habitats where they may burrow under leaf litter or loose soil during the heat of the day.
The black and white pattern of adults is believed to have evolved to mimic the pattern of the aggressive ground beetle Anthia sexguttata that has strong defenses, including the ability to spray chemical irritants. The upperside of the abdomen is orange-yellow, but is hidden by the tegmina. The spots on the asymmetrical tegmina are placed so that when closed, the spots appear symmetrical. The right tegmen lobe is bright orange-yellow. The species has been said to be one of the few cockroaches with "grace and beauty". The head is bent back underneath the pronotal shield (hypognathous) and the ocelli (simple eyes) face forward, helping sense light and thereby time, and they forage actively during early morning and late evening.... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chennai | 🇮🇳 India | |
| 2 | Coimbatore | 🇮🇳 India | |
| 3 | Hyderabad | 🇮🇳 India |
With luck
About 10% of wildlife watchers report an Indian Domino Cockroach sighting in Hyderabad on a given day, based on 50 verified sightings from GBIF citizen-science data. It is the 50th most-seen of the 318 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 40% of wildlife watchers report an Indian Domino Cockroach in Hyderabad on a given day, against under 5% in May and October–March, the lowest months. That is one of Hyderabad's wettest months, with about 170 mm of rain against almost none in December.
3rd of 3
Of the 3 cities where we can rate Indian Domino Cockroach sightings, Hyderabad ranks 3rd at about 10%. The best odds are in Chennai (India, about 30%) and Coimbatore (India, about 20%).
Same order: Blattodea
The closest relatives of the Indian Domino Cockroach that you can see in Hyderabad (order Blattodea, Cockroaches and Termites) are Brown-Banded Cockroach (about 10%) and American Cockroach (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Indian Domino Cockroach is recorded against all the insects logged in Hyderabad (50 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.
