ORTHOPTERA OF NOVA SCOTIA. PIERS. 341 



28. Gryllus pennsylvanicus Burmcister. Pennsylva- 

 NiAx Field CuiCKEr. (Shorte.st-wingei form, some- 

 times called G. pennsylvanicus neglectus Scudder. ) 



Acheta abhreviata (not of Seiville). Piers, Trans. N. S. 

 Inst.' Sc, viii, 410 (1894); Windsor, N. S. 



Gryllus pennsylvanicus form neglectus. Piers, Trans. 

 N. S. Inst. Sc, ix, 210 (1896); Halifax, Bedford, and 

 Windsor, N. S. 



Gryllus assimilis (Fabricius), in part. Rehn and Hebard, 

 Proc. Acad. Nat. Sc, Phila., 67, 293 (1915). 



Note. — Should Rehn and Hebard be sustained in their 

 contention that there is only one species of native 

 cricket in America, then our Nova Scotian form 

 may be termed Gryllus assimilis form neglectus of 

 Scudder. 



In order to clearer understand what relates to this form, 

 I have thought it better to divide what is here presented 

 into two sections; the first describing generally, for compara- 

 tive purposes, what has been termed G. pennyslvanicus in 

 its various forms as found in North America, according to 

 late writers, and the second deahng in detail with the variant 

 which occurs in Nova Scotia. 



.'. General Description of G. pennsylvanicus as found in 



North America. 



Descriplion of G. pennsylvanicus. — Medium-sized and rather broad; 

 male more slender and head more narrow and less swollen (a little wider than 

 pronotum) than in G. abbrevialus, pronotum ])roportionately a little wider 

 and shorter than in ahhreviatus, length contained in breadth nearly 1.6 times, 

 the width being about 6.3 mm. and length .3.9 mm. in male and about 4.2 

 mm. in female, the hind margin sinuate.* Wing-covers of male of both short- 

 and long-winged forms, reach to or nearly to tip of abdomen. In female of 

 short-winged variant the wing-covers vary from (a) covering only about two- 

 thirds of abdomen (in what I consider to be G. -pennsijlvanicus negleclus 

 Scudder, which is the form represented in Nova Scotia), to (b) reaching nearly 

 to tip of abdomen, they being about 10 mm. long (in what I con.sider to be 



*In Blatchley's G. americaiiun ( ^nenlerluH"!) the head is no wider than the pronotum, 

 and the length of the latter is contained in its width 1.3 times, the width being 5 mm. in male 

 and 5.6 mm. in female, and the length 3.5 mm. in male and 4.2 mm. in female. 



