OETHOPTERA OF INDIANA. 



221 



Color variable, usually wholly grayish or reddish brown, sometimes 

 blackish, often with a whitish median band along the full length of 

 the pronotum. Surface of pronotum and legs finely granulated; the 

 dorsal surface of pronotum also rugose with numerous short ridges or 



Fig. 39. Tcttix gi-amdatus lj.i\r\>y). (After Lugger.) 



wrinkles. Anterior border of vertex considerably advanced in front 

 of eyes, obtusely angulate or very slightly rounded, the mid-carina 

 projecting but little if any beyond the sides. Face very oblique, eyes 

 small. Body, especially that of male, very slender. Pronotum ^vith 

 front margin truncate, its posterior portion long drawn out, the apex 

 acute, passing the hind feinora; its median carina prominent through- 

 out but not crested. Inner wings reaching to or slightly beyond tip 

 of pronotum; in life bluish or bottle green in color. A form with the 

 pronotum and wings more or less abbreviated is occasionally found 

 with the common form. To it Hancock has given the varietal name 

 variegatus. 



Measurements: Length of body, male, 8.5 mm., female, 11 mm.; 

 of pronotum, male, 11 mm., female, 13.5 mm.; of hind femora, male, 

 G mm., female, 7 mm. 



This slender grouse locust doubtless occurs throughout the State, 

 having been taken in Lake, Porter, Fulton, Marshall, Marion and 

 Franklin counties. It is probably muc'h more abundant in north- 

 ern than in southern Indiana, as its general range is northerly, ex- 

 tending from ocean to ocean and northward through British America. 

 It has an especial liking for marshy and boggy tracts about the 

 margins of lakes and tamarack swamps, though it is likely to occur 

 anywhere in low v/et woods. In Vigo County I found it hibernating 

 beneath logs along the sandy border of a large river bottom pond. 

 The light band along the middle line of pronotum is in a high degree 

 protective when the locust dwells among the grasses and sedges of 

 marshy tracts, as it harmonizes with the dried blades of these plants. 

 Hancock has found granulalus in Wisconsin on the ground "about 



