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Between 950,000–1,000,000 of all described animal species are considered insects, so over 50% of all described eukaryotes (1.8 million species) are insects (see illustration). With only 950,000 known non-insects, if the actual total number of insects is 5.5 million, they may represent over 80% of the total, and with only about 20,000 new ...
View history; General ... Lists of insect species (1 C, 400 P) Pages in category "Lists of insects" ... List of damselflies of the world (Calopterygidae) ...
The largest is the dobsonfly Acanthacorydalis fruhstorferi, which can have a wingspan of up to 21.6 cm (8.5 in), making it the largest aquatic insect in the world by this measurement. [38] This species is native to China and Vietnam, and its body can be up to 10.5 cm (4.1 in) long. [39]
Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of July 2016, the International Union for Conservation of Nature (IUCN) listed 195 critically endangered insect species, including 46 which are tagged as possibly extinct. [1] [2] Of all evaluated insect species, 3.2% are listed as critically endangered ...
[4] [5] Two species of Tinea moths have been recorded as feeding on horny tissue and have been bred from the horns of cattle. The larva of Zenodochium coccivorella is an internal parasite of the coccid Kermes species. Many species have been recorded as breeding in natural materials or refuse such as owl pellets, bat caves, honey-combs or ...
In contrast, a large majority of the insect species of the tropics and the southern hemisphere are probably undescribed. [11] Some 30–40,000 species inhabit freshwater; very few insects, perhaps a hundred species, are marine. [12] Insects such as snow scorpionflies flourish in cold habitats including the Arctic and at high altitude. [13]
There are 538 insect species which are endangered or critically endangered. Additionally 1702 insect species (28% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically ...
There has also been a history of people becoming entomologists through museum curation and research assistance, [11] such as Sophie Lutterlough at the Smithsonian National Museum of Natural History. Insect identification is an increasingly common hobby, with butterflies [12] and (to a lesser extent) dragonflies being the most popular. [13]