30 THE CANAD1A.N ENTOMOLOGIST. 



bushes, Eupatoriuvi purpureiun diw^ perfoliatnvi, and many other plants 

 in less abundance growing in the sunny openings. In the wetter parts of 

 the swamps, where tamarack is almost the only tree to be found, I have 

 never seen P. variegata, which seems, indeed, to be the most particular 

 about its haunts of any of our Acridians. 



They are generally seen sunning themselves on the leaves of shrubs, 

 sometimes close to the ground, though more often three or four feet above 

 it. Most of my specimens were taken from the leaves of the red rasp- 

 berry (Rifbus strigosus), one from Labrador Tea (Ledum groenlandicum), 

 others from the branches and trunk of arbor-vita; (Thuja occidentalis). 

 I found a dead and decayed male clinging to a raspberry twig. It had 

 evidently been the victim of some fungus like that which infests the com- 

 mon two-striped locust ( Mehinoplus femoratus). 



Besides the mature specimens, I have also a female nymph, which 

 resembles the adult much more closely than do those of Melanoplus, the 

 colour and markings being quite similar to those of the adult. 



It is a late appearing insect, all but three of my specimens having 

 been taken in September. One of these three, my first capture of the 

 species, is dated Aug. 6, 1895, and the other two Aug. 23, 1867. I do 

 not know how late they remain, as I always leave De Grassi Pt. before 

 the end of September, at the time when they are most easily obtained. 

 22. Melanoplus atlanis, Riley. 



Caloptenus athmis, Riley. Ann. Rep. Ins. Mo., VII., 169 (1875). 

 Caloptenus atlaiitis, Thos. Bull. 111. Mus. Nat. Hist., I., 68 (1876). 

 Melanoplus atlanis, Scudd. Rep. U. S. Ent. Comm., II., app., 24 

 (1881). 



This is one of our commonest grasshoppers, doubtless occurring in 

 all parts of the Province. It appears earlier than most of our Melanopli, 

 and continues until late in the fall. In the season of 1898 I saw a num- 

 ber of adults on June i6th, though they are not usually seen until about 

 a week later. It is to be found mostly on sandy soil, often in immense 

 numbers, and is our most destructive locust. 



I have specimens from Rat Portage, Aug. 28, 1897 ; Nepigon, Aug. 

 27, 1897; Severn River, Aug. 17, 1898; Lake Simcoe, and Toronto. 

 Along the Severn River they were not nearly so common as one would 

 have expected, from the sandy and rocky character of much of the 

 country, M. collinus far exceeding it in numbers. 



All my specimens have the typical red hind tibiae, nor have I ever 

 noticed a specimen with tibiae glaucous or otherwise differently coloured. 



