320 



ORTHOPTERA OF NOVA SCOTIA. PIERS. 



the latter from that place collected by Mr. Allen. One 

 would expect to find it occurring on bushes in bogs, as is 

 the case in Maine. 



22. Scudderia furcata furcata Brunner. Northern 

 Fork-tailed Katydid. 

 ff Phylloptera myrtifolia (not of Serville) F. Walker, 

 Cat. Derm. Salt. Brit. Mus., ii, 376 (1869); Canada. 

 —Do., Can. Ent., iv, 30 (1872); Canada, Nova 

 Scotia. 



Description. — Wtile generally resembUng our other species of Scudderia, 

 this one may be verj^ readily separated from them by the form of the supra- 

 anal spine of the male. Females may probably be best distinguished by the 

 nearly parallel sides of the disk of pronotum. — Wing-covers proportionately 

 somewhat narrow (the length about 43^ times the greatest breadth in the 

 male, and about 4^ in the female). Supra-anal spine of male deeply forked, 

 the apical notch deep and rounded (distinctly U-shaped), without a median 

 tooth; the lateral processes (on sides of notch) not much longer than broad, 

 decidedly swollen and broadest at the basal part (that is, about opposite the 

 extreme depth of the U) when viewed from above, and these processes not 

 longitudinally flanged or keeled along their lower surface. Dish of pronotum 

 with nearly parallel sides (in male and female of pistillata and curvicauda 

 borealis it distinct!}^ broadens backward) . Greatest width of o\'ipo8itor about 

 2/5*bs of its upper "chord. Hind femora about 17.2 to 22 mm. 



Colour. — General colour dark leaf-green, occasionally more or less 

 suffused with brown; the head and pronotum paler; the lateral angles of the 

 pronotum usuallj' not outHed -vs-ith yellowish. 



Measurements. — Male: body, 14-18 mm.; pronotum, 5 mm.; -^-ing-covers, 

 26-31 mm.; gi-eatest 'nidth of 'ning-covers, 6-6.5 mm.; lund femora, 19-22 

 mm. Female: body, 18-22 mm.; pronotum, 5 mm.; wing-covers, 26-30 mm.; 

 width of wing-covers, 6 mm.; hind femora, 20-22 mm.; ovipositor, 5 mm. 

 Width of wing-cover contained in its length about 4^ times in male and 

 about 4% in female. {Vide Rehn and Hebard.) 



The following are comparative measm-ements of two males of S. furcata 

 furcata taken at Chocolate Lake, North West Arm, near Halifax, N. S., 

 30 Sept., 1897: 



Body to end of anal process 



Body exclusive of anal process 



Pronotum, length : 



Pronotum, anterior width 



Pronotum, posterior width 



Wing-covers, length . 



Wing-covers, greatest width 



Hing-wings extend beyond wing-covers 



Hind femora . . '. 



Hind tibise 



Antennse 



Eye, vertical diameter 



Width of wing-cover contained in it length; times. 



