318 



ORTHOPTERA OF NOVA SCOTIA. 



-PIERS. 



anal spine (they not being tape'-ing as in pistillata). From typical S. curvi- 

 cauia it differs in its smaller size, more compact form, and the broader and 

 shorter wing-covers. From S. furcata it is very readily separated by the form 

 of the supra-anal spine. Females are distinguished from those of furcata 

 by the shape of the pronotum disk, which widens posteriorly; and from those 

 of pislillata by the relatively narrower wing-covers. 



Colour. — General colour green, the lateral angles of the pronotum in 

 most cases weakly outUned with brownish white. Two Nova Scotian speci- 

 mens in the Provincial Museum are green with reddish-brown tibiae; one has 

 a pale buffy hne on edges of disk, along the lateral angles of the pronotum, 

 the other is suffused with pale reddish-brown on most of head, pronotum, 

 and humeral angles of wing-covers. 



Measurements. — Male: body, 18.2-22.3 mm.; posterior width of pro- 

 notum, 3.3-3.6 mm.; pronotum, 5-5.4 mm.; wing-covers, 27.S-29 mm.; greatest 

 width of wing-covers, 6.5-7 mm. ; posterior femora, 21.8-22.7. Female: 

 body, 18-20.4; pronotum, 5.1-5.4 mm.; posterior width of pronotum, 3.6-3.8 

 mm.; wing-cover«, 25.2-29.7 mm.; posterior femora, 20.8-22.6 mm.: ovipositor, 

 7-7.4 mm. Width of wing-cover contained in its length very elightly more 

 than four times on an aver.age. {Vide Rehn and Hebard.) 



Two of the Nova Scotian males fi'om Mr. Gooderham's collection have 

 been presented to the Provincial Museum, viz. one taken at Wilmot, Ann. 

 Co., 6 Sept., 1915, by W. E. Whitehead, and the other without data, and these 

 furnish the following measurements: — 



Body, to end of subgenital plate. 



Body, exclusive of anal appendages . . . . 



Pronotum, length . 



Pronotum, anterior width 



Pronotum, posterior width 



Wing-covers, length 



\. ing-covers, greatest width 



Hind wings, length 



Hind wings extend beyond wing-co\ers. 



Hind femora 



Hind tibia; 



Subgenital plate, length 



Eye, vertical diameter 



Width of wing-cover to length of same, . 



Male, 





Wilmot 



Male 



6-9-15 





9.4mm. 



20.3mm 



16.0 





5.0 



4.7 



2.5 



2.5 



3.4 



3.5 



27.5 



26.5 



6.5 



6.5 



30.0 





4.0 





20.2 



21.6 



22.0 



22.5 



6.5 



6.2 



1.5 



1.5 



^th 



J€th 



Hange. — This is the race occurring in the extreme northern portion of 

 the range of S. curvicauda. It has a limited distribution which borders that 

 of curvicauda curvicauda in the north and northwest. Hitherto it has only 

 been reported from Maine (in bogs), Ontario (Severn River, Tobermory, and 

 Toronto), and Manitoba (Awcme), being fovmd typicil only in the Canadian 

 Zone. Dr. J']. M. Walker's Toronto si)ecimens show soii.e tendency toward 

 curvicauda curvicauda. 



Occurrence in Nova Scotia. — This geographical race 



was first described in 1914 by Rehn and Hebert (Trans 



Amer. Ent. Soc, 40, p. 281) from specimens taken in Maine, 



Ontario, and Manitoba. I hav(> not so far detected it about 



