175 
ENTOMOLOGY. 
Edited by James Fletcher, F.R.S.C. 
\-nr> 
Corydalis cornutus. Several times last summer this insect was 
sent in by members for information as to its name and habits. This is 
not surprising, as it is one of the most striking in our insect fauna, and 
yet from its crepuscular habit of flight, but seldom observed. It is as 
remarkable and interesting in its earlier stages, as when it assumes the 
adult, or winged form. The larva passes its life in the water, and is a 
common inhabitant of our rivers, being quite abundant for instance in 
the Rideau. In this stage it lives nearly three years, and when fully 
grown is a dirty brown "crawler," with a squarish head armed with 
strong jaws. In addition to six legs, it has several tapering appendages 
on each side, which gives it some resemblance to much dreaded centi- 
pedes. It breathes during its aquatic existence, by means of tuft-like 
gills placed at the base of the lateral appendages. About June (of its 
third year) it becomes tired of its submarine life, and seeks change of 
scene, and may then be found under stones or drift wood, sometimes at 
quite a distance from the water. Forming a shallow cell it pupates, 
and about the first of July spreads its ample wings in heavy flight over 
the surface of the stream in which it erstwhile crept. The expanded 
wings measure almost six inches from tip to tip, but the heavy body of 
the insect causes it to be a feeble and awkward flier. The body of the 
adult much resembles that of the larva, but the male developes an enor- 
mous pair of horn-shaped mandibles, which give him a very formidable 
appearance. This species belongs to the Neuroptera, and is allied to 
our dragon-flies, as may be readily seen by examining the many veined 
wings. The larva is considered by fishermen to be an excellent bait, 
and has received in the United States a variety of names, among which 
the following are taken from Insect Life : Dobsons, Crawlers, Amly, 
Conniption Bugs, Clipper, Water Grampus, Goggle Goy, Bogart, Crock, 
Hell Devils, Flip Flaps, Alligators, Ho Jack, Snake Doctor, Dragon 
and Hell Diver. The adult is also known as the Hellgramite Fly. 
W. H. H. 
