THE CANADIAN ENTOMOLOGIST. 341 



12. XiPHiDiUM NIGROPLEURA, Bruiicr. The Black-sided Meadow 

 Grasshopper. 



Xiphidium nigroplcurum, Brun., Can. Ent., XXIII. , 1891, 58. 



Xiphidiuin nigropleura, Scudd., Can. Ent., XXX., 1898, 184. 



Measurements : Length of bady, $ 19.3 mm., J 14.6 mm.; of 

 pronotum, $ 3.3 mm., 9 h-S nifn.; of hind femora, $ 13 mm., $ 13.8 

 mm.; of ovipositor, 17.5 mm. 



I have come across this handsome species in small numbers in 

 southern Ontario, where it frequents open marshes bordering creeks and 

 ponds, and grown up with tall grasses, sedge, etc. It was generally found 

 in company with the next species. But a single male was taken. 



Localities: Rondeau. Sept. 14, 1S99; Arner, Aug. 9, 1901; Chatham, 

 Aug. 10, 1901 ; Wali)oIe Id., River St. Clair, Aug. 13, 1901. 



13. Xiphidium aitenuatum, Scudd. The Lance-tailed Meadow 

 Grasshopper. 



Xiphidium aitcnuatum, Scudd., Trans. Amer. Ent. Soc, II., 1869, 



305- 



Xiphidium Scudderi, BL, Can. Ent., XXIV., 1892, 26. 



Measurements: Length of body, ^ 12 ram., V 14 r'l'^i-; <jf pi'O'iotura, 

 A 2.6mm., 9 2.9 mm.: of hind femora, ^ ir mm, 9 14.2 mm.; of 

 tegmina, short-winged form, ^f 9.5 mm, 5 8.5 mm.; long-witiged form, 

 S 16.5 mm.; 9 19 mm.; of ovipositor, 20-30 mm. 



This extraordinary insect is plentiful in southern Ontario, but is quite 

 limited in distribution. • 



The females are easily known by the enormous development of the 

 ovipositor. 



It frequents open marshy borders of creeks and ponds, where it leaps 

 about with wonderful agility among the tall grasses and sedge. The 

 short-winged form is much more often seen than the long. 



Blatchley says : " The eggs of attenuatum, as the lengtli of the 

 ovipositor indicates, are laid between the stems and leaves of tall rank 

 grasse.":, among which the insects live." 



Localities: Rondeau, Sept. 15, 1899; Point Pelee, Aug. 8, 1901 ; 

 ^\^^lpole Id., River St. Clair, Aug. 13, 1901. 



(To be continued.) 



