Diorhabda carinulata
In 3 days ~10% in a week ~20%
Diorhabda carinulata is a species of leaf beetle known as the northern tamarisk beetle, which feeds on tamarisk trees from southern Russia and Iran to Mongolia and western China. This beetle is used in North America as a biological pest control agent against saltcedar or tamarisk (Tamarix spp.), an invasive species in arid and semiarid ecosystems (where D. carinulata and its closely related sibling species are also less accurately referred to as the 'saltcedar beetle', 'saltcedar leaf beetle', 'salt cedar leaf beetle', or 'tamarisk leaf beetle').
The northern tamarisk beetle was first described from southern Russia as Galeruca carinulata Desbrochers (1870). Weise (1893) created the genus Diorhabda and erroneously placed the northern tamarisk beetle as a junior synonym of a sibling species, the Mediterranean tamarisk beetle, Diorhabda elongata (Brullé). Chen (1961) described the species in western China as a new subspecies Diorhabda elongata deserticola Chen. Yu et al. (1996) proposed the species D. deserticola. Berti and Rapilly (1973) recognized the northern tamarisk beetle as a separate species Diorhabda carinulata (Desbrochers) based on detailed morphology of the... 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 a Northern Tamarisk Beetle sighting in Phoenix on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 180th most-seen of the 264 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 and August
In those months about 10% of wildlife watchers report a Northern Tamarisk Beetle in Phoenix on a given day, against under 5% in September to June, the lowest months. Those are among Phoenix's wettest months, with about 35 mm of rain a month against almost none in June.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Northern Tamarisk Beetle sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 cities where we can rate Northern Tamarisk Beetle sightings, Phoenix ranks 2nd at under 5%. The best odds are in Mesa (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Northern Tamarisk Beetle is recorded against all the insects logged in Phoenix (8 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.
