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The family Corydalidae contains the megalopterous insects known as dobsonflies and fishflies. Making up about three dozen genera , [ 1 ] they occur primarily throughout North America , both temperate and tropical, South America , Australia , New Zealand , Africa (particularly South Africa ) and Asia .
Adult dobsonflies are some of the largest non-Lepidopteran insects of temperate zones such as the United States and Canada, with a wingspan of up to 18 cm (7.1 in) in some species of Corydalus. [3] The Asian Acanthacorydalis fruhstorferi can have a wingspan of up to 21.6 cm (8.5 in), making it the largest dobsonfly and the largest aquatic ...
Many species have rings of spines on the tail, that aid in wedging the animal into sheltering crevices, and also in dissuading predators. [4] Most species have four limbs, but those in the genus Chamaesaura are almost entirely limbless, with only tiny spikes in place of the hind limbs. The family includes both egg-laying and ovoviviparous ...
There are a few larger spider species, including wolf spiders and fishing spiders, that might get aggressive and bite humans if they're provoked. But bites from these spiders aren't dangerous.
Wolf spider. What they look like: With over 200 species of wolf spiders crawling around, it’s no wonder that they range in size and appearance.“The largest species can be up to an inch and a ...
From ticks to spiders to bed bugs, here’s what the most common bug bites look like in photos, the symptoms to know, and whether or not they can be dangerous. These Pictures Will Help You ID the ...
Corydalus is a genus of large flying insects in the Corydalidae family, commonly known as dobsonflies. They are endemic to North, Central and South America and there are about 35 known species. Members of the genus have wing lengths of up to 85 millimetres.
There are only a few species of spiders in the U.S. that can bite humans. “The truth is that most spiders are too small to bite us, including those adorable jumping spiders,” Jody Gangloff ...