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 180 mm in some species of Corydalus [REF].
In regards to the larvae, entomologist John Henry Comstock wrote in his 1897 book Insect Life,[REF] "In spite of its disagreeable appearance it is in some respects very interesting to students of Nature study."