The most active and prolonged wriggler of all live baits is the hellgrammite, an exceedingly effective bass bait. Because of the extreme toughness of the larva, its constant wriggle and continued life after being hooked, it is much sought by the angler. Large perch and chub cannot resist it. Pickerel have been known to take it, but other baits for that fish are superior. Wall-eyed pike, big catfish, and eels will take it, but trout will not touch it. I have tried it in pools where large brown trout abide near where bass lie, and the bass have always responded to it.

The hellgrammite is the aquatic larva of a fly, the horned corydalus {Corydalus cornutus), somewhat resembling and closely allied to the dragonfly. It is supposed to exist for several years in the larval state under loose rocks on or just below the water-line of rivers and other waters of low temperature. Here its life is spent in devouring other smaller insect larvae, and during this period it is most suitable for baiting purposes. But this repulsive-looking, yet harmless, creature is used as bait in all three stages of its life. First in its larval - creeper stage; then in the dormant pupa stage, and last after the final change into the adult flying insect. The corydalus is a large, fierce-looking insect with four gauzy wings which, when at rest, lie flat over the body, which is a cinnamon color on the belly, dark brown at the sides, and dull black at the head and thorax. It begins its flight after dusk and, like the creeper, is entirely nocturnal in its habits. I have never seen it in flight during the daytime in New York . regions. This fine, large insect is very abundant on Montana streams, where it is used extensively by anglers who hook them alive to fish at the surface for the big rainbows. These big rainbows run up to fourteen pounds' weight, and they are so adroit in nipping the insect from the hook that several experts requested me to make an artificial from specimens sent me in "spirits," which I did, and named it the "Winged Hellgrammite." Its body measures over two inches in length, the wings extending half an inch beyond the tail, and with the two long black horns at the head the entire insect measures three and three-quarter inches long.

The artificial hellgrammite creeper differs somewhat in having a row of short-pointed feelers along each side of the abdomen. The belly is grayish cream-color, the back dark brown with black shiny head and thorax. The artificial of this creeper has been found exceedingly good in many swift and still waters for large or small-mouth bass and wall-eye. A smaller and decidedly different species, the artificial of which I have named the "Trout Hellgrammite," because I found it frequently in the stomachs of brook-trout in widely different localities, is described in detail elsewhere along with the other creepers that trout take as food. The hellgrammite creeper is very easily captured and may be kept a considerable time in damp grass and rotten wood at low temperature.

Rainbow trout Salmo Iridens

Rainbow-trout Salmo Iridens.