262 TtlE CANADIAN ENTOMOLOGlSf. 



This is one of our most beaulifui Acridians, but is very local in dis- 

 tribution. I have specimens taken at Sparrow Lake by Mr. C. T. 

 Curelley, who found them very abundant. I have also taken it, 

 personally, at Gravenhurst, Muskoka District, Sept. 27, 1897, where they 

 were flying in considerable numbers about a dusty gravelly road close to 

 the railway station. They were very rapid in flight, though they never 

 flew very far, and being without a net and pressed for time, only a few 

 were secured. Its stridulation resembles that of Spharagemon bolii, but 

 is more rapid, the sound being almost a buzz. 



It probably occurs in many parts of our Laurentian area, but I have 

 had, as yet, but little opportunity of collecting in that region. 

 18. Trimerotropis maritima, Harris. 



Locusta maritima, Harr. Ins. Inj. to Veg., 178 (1862). 

 CEdipoda maritima, Thos. Syn. Acrid., 124 (1873). 

 Trimerotropis maritima, Stal. Recens. Orth., L, 134 (1873). 



On the sandy beaches of Toronto Island this locust flies about the 

 coarse grass which grows at a short distance from the water's edge. In 

 some seasons it occurs in large numbers, in others it is comparatively 

 scarce. I have also two pairs which were taken at Kingsville on the 

 beach of Lake Erie, by Mr. C. T. Hills, who says they were abundant 

 there. 



It is an extremely alert species and very difficult to capture, and is 

 almost impossible to see when it alights, on account of the close 

 similarity of its gray tints to those of the sand. 



The specimens of this species found about the Great Lakes differ 

 very considerably from the typical form of the Atlantic coast, and may 

 possibly constitute a distinct species. The dark band crossing the wings 

 is much broader than in the typical form, and is uninterrupted instead of 

 being broken up into a series of sub-continuous spots. The greatest 

 breadth of this band is nearly half the greatest breadth of the wing, while 

 in typical maritima it is only about a third the greatest breadth of the 

 wing. The base of the wings is yellower and more opaque, resembling 8; 

 boUi in this respect. All the markings are generally more distinct, and 

 the tegmina and wings usually somewhat shorter in proportion. It is dis- 

 tinctly smaller in size, judging from specimens of the typical form which I 

 have from Monmouth Beach, N. J. This form appears to be a distinct 

 variety, and may be known as interior. 



My Toronto specimens were taken between July 22 and about the 

 middle of September, while those from Kingsville are dated Aug. 13, 1897. 



