ter^iMtomoK^^ 



^OL. 1. 



ST. LOUIS, MO., DECEMBER, 1868. 



NO. 4. 



ul^t %\ mxmn € ntnntalngbt. 



■pUBLIsnED MOXTIILY BY 

 JR. F. STTJIDLETT Ss CO., 



104 OLIVE STREET, ST. LOUIS. 



EDITORS : 



!EN.J. D. WALSH Rock Island, 111. 



MAS. V. IlILEY, 2130 Clavk Ave St. Louis, Mo. 



existence in large, raijidly-flowiiig rivers, and 

 generally in such as have a more or less rocky 

 bottom. Here it crawls and swims about upon 

 the bottom, preying upon the various aquatic 

 larvae found in great numbers in such situations, 

 such as May-flies {Ephemera family). Shad-flies 

 (Peritt family), and the singular Caddis-worms 

 {Phryganea family) . These last inhabit move- 

 able cases, constructed, according to the par- 

 ticular species, either of little bits of sticks and 



5B.] 



Coloi-s— (o) iliiv 



THE HELLGRAMMITE FLY. 



{Corydalis 



riie gigantic larva (Pig. 56 a) of tlus gigantic 

 ly (Fig. 56 c) spends the earlier periods of its 



li, (c and d) light brown. 



straw, of grains of sand, or in some instances of 

 living water-snails, wliich, along with other 

 materials, they weave, by means of the silk 

 which they spin from their tails, into a comfoi-t- 



