100 



supposed to represent more than the first two syllables of the ' Katy did ' 

 or ' Katy didn't ' of its congeners. It is made but once, and the rasp- 

 ing, jerky sound has been very well represented as bzrwi." 



Curvicauda is a species of wide distribution, occurring throughout the 

 eastern United States, and as far west as the Rocky Mountains. In Cen- 

 tral Indiana it reaches maturity about the 25th of July. 



bb. Notch of supra-anal spine of male acute and much narrower than 

 the middle of the upcurved sub-anal spine ; the lateral processes 

 (at side of notch) broadly rounded with the lower margin thinner. 



2. Scudderia furculata, Brunner. 



Scudderia furculata, Brunner, Monog. der Phanerop., 1878. 



Smith, Cat., Insects found in N. J., 1890, 410. 

 Id., Bull. Agr. Exp. Stat, of N. J., No. 90, 24, pi. 

 II., Fig. 4. 



Somewhat larger than curvicauda and closely resembling that species in 

 general appearance, the females of the two being difficult to distinguish 

 except by the measurements ; the males readily separated by the different 

 form of the notch of the supra-anal spine. The general color is the same, 

 but the yellow carinal line of the pronotum is less distinct or wholly 

 wanting in furmlata, and the apical third of wings is usually a transpar- 

 ent reddish 'brown. The wing covers of the latter are broader and the 

 posterior femora proportionally a little shorter. 



Measurements : Male Length of body, 23 mm.; of tegmina, 37.5 nun.. 

 of posterior femora, 30 mm.; of pronotum, 6 mm. Width of tegmina 8 

 mm. Female— Length of body, 25 mm.; of tegmina, 38 mm ; of posterior 

 femora, 33 mm.; of ovipositor, 7 mm. Width of tegmina, 8.5 mm. 



According to Bruner* furculata is usually more southern in its distri- 

 bution than curvicauda, but in Indiana this distribution seems reversed, 

 as the latter is much the more common in Vigo and Putnam counties, 

 while in Marshall and Fulton counties, 150 miles further north, it is very 

 scarce and furculata very common. A single male was taken from an 

 oak grove on the border of Lake Maxinkuckee in Marshall county, on 

 August 1st, and on the 26th of the same month it was found in numbers 

 at the same place, and also about the borders of a large tamarack swamp 

 in Fulton county. Its habits of flight and song, as far as noted, are essen- 

 tially the same as those of curvicauda, noted above. 



