THE CANADIAN ENTOMOLOGIST. 29 



NOTES ON SOME ONTARIO ACRIDIIDyE.— Part III. 



BY E. .M. WALKER, TORONTO. 



( Conlinticd from I'ol. XXX., fai;c sdj. ) 

 IV. — ACRIDIIN^. 



20. Schistocerca americana, Drurv. 



Gryllus afnerica?ius, Drury. Illustr. Nat. Hist., ajjp. (1773). 



Acridiufii ai/iericanum, Scudd. Mat. Mon. N. A. Orth., 466 (1862). 



Schistocerca americana, Blatchiey. Can. Ent., XXIII., 79 (1891). 

 This large and beautiful locust has been twice reported from Ontario 

 at London (Can Ent., XXVII, , p. 52), and at Toronto (Can. Ent., 

 XXIX., p. 89), a single example being taken in each instance. These 

 were probably wanderers from the South, certainly in the case of the 

 Toronto specimen, and the insect can hardly be regarded as a native 

 of our Province, though it may be established in the extreme southern 

 portion. 



21. Podisma variegata, Scudder. 



Fezoiettix glacialis, Com?,\.ocV. Introd. Ent., 107 (1888). 

 Podisma variegata, Scudd. Revision of the Melanopli, from Proc. 

 U. S. Nat. Mus., XX., loi (1897). 



I have taken this beautiful little species in two large swamps, one at 

 De Grassi Pt., Lake Simcoe, and the other about six miles further west. 

 Altogether I have taken sixteen specimens, eight ^ s and eight J s, six from 

 De Grassi Pt. and ten from the other epot. Dr. Brodie has also taken it 

 at Muskoka, where he found it in considerable numbers. The only other 

 localities where it has been found are Ithaca and Enfield Falls, Tomkins 

 Co., N. Y. (Scudd. Rev. Melanopli, p. 102). 



It can be at once distinguished from all our other Acridiidae, except 

 its ally, P. glacialis, Scudd., by its having no trace of either tegmina or 

 wings. The latter species, which is not uncommon in the U'hite Moun- 

 tains, N. H., has been taken at Sudbury, Ont., by Dr. Scudder (Rev. 

 Melanopli, p. 100), but is not found with us at the south, being, like 

 most of the genus, a species which affects high altitudes or latitudes. It 

 differs from P. variegata mainly in the shorter hind legs and antennae, the 

 stouter cerci, and the almost uniformly green hind femora, those of P. 

 variegata being pale yellowish, thrice banded with dark brown. 



The two swamps where I secured my specimens are quite similar in 

 character. They are for the most part densely wooded with a mixed 

 growth of arbor-vitae, tamarack, balsam fir, and spruce, with raspberry 



