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The origin of the word "dobsonfly" is unclear. John Henry Comstock used the term in reference to these insects in his 1897 book Insect Life, [1] but did not explain it. He also mentioned that anglers used the word "hellgrammite" for the aquatic larvae they used as bait, but the origin of this term is also unknown.
The eastern dobsonfly, Corydalus cornutus, is the most well-known North American species among the dobsonflies. These genera have distinctive elongated mandibles in males and form the subfamily Corydalinae. The genera in which the males have normal mandibles, called fishflies, form the subfamily Chauliodinae.
Eastern Dobsonfly (Corydalus cornutus) female. The adult dobsonfly is a large insect up to 140 millimetres long with a wingspan of up to 125 millimetres. [8] The female has short powerful mandibles of a similar size to those of the larva while the mandibles of the male are sickle-shaped and up to 40 millimetres long, half as long as the body. [1]
Archichauliodes diversus is the only member of the genus (and family) found in New Zealand where it is endemic and common throughout both the North and South Islands. [4] [5] It is common in streams nationwide, with moderate to good water quality, and has tolerance values of 7 (hard bottom sites) and 7.3 (soft bottom sites).
The natural history observational skills required for accurate species identification in the field are neglected in formal education at all levels. iSpot is intended to help solve this problem by combining learning technology with crowdsourcing to connect beginners with experts.
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Protohermes is a genus of dobsonflies in the family Corydalidae. [1] Protohermes is the most speciose and widely distributed genus within Megaloptera, but up to 85% of species are restricted to small endemic areas in Asia. [2] [3] This endemism may be a result of an association with high elevation and high slope streams in Northern Vietnam and ...
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