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Corydalus is a transliteration from the Greek κορδαλος (korúdalos) [3] meaning a crested lark or the flower, larkspur, apparently related to Greek corys (κορυς) a helmet crest. [4] The name probably refers to the long mandibles of the male which might be considered to resemble the crest of a lark, or perhaps, the decorative crests ...
The metamorphosis from larva to adult in dobsonflies is one of the simplest of the holometabolous orders, [3] yet the life cycle begins with an intriguing ritualized courtship display (most of the following comes from Simonsen et al. 2008 [8] and all pertains to Corydalus; other courtship rituals remain unknown). Males compete with each other ...
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]
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.
Corydalus cornutus - MHNT. Megaloptera is an order of insects.It contains the alderflies, dobsonflies and fishflies, and there are about 300 known species.. The order's name comes from Ancient Greek, from mega-(μέγα-) "large" + pteryx (πτέρυξ) "wing", in reference to the large, clumsy wings of these insects.
Corydalis (from Greek korydalís "crested lark") is a genus of about 540 species of annual and perennial herbaceous plants in the family Papaveraceae, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. They are most diverse in China and the Himalayas, with at least 357 species in China.
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Larvae are typical hellgrammites, and fill a similar ecological niche to larvae of Corydalus and other genera. There appears to be an altitudinal gradient between Platyneuromus and Corydalus in Mexico. At low elevations (about 500 m), under a semiarid climate, only C. luteus Hagen is found.