OKTHOPTERA OF INDIANA. 



335 



female, 6 mm.; of tegmina, male, 6 mm., female, 7 mm.; of hind 

 femora, male, 13 mm., female, 14 mm. 



Only the short-winged form of this dull colored 

 locust has been taken in Indiana, and those only in 

 Lake and Porter counties on October 11 and 12, 

 1898. Just east of Hammond, they were found in a 

 long, low, marshy tract among the leaves of blue 

 flag. The next day they were more abundant about 

 some marshes northwest of Dune Park. The males 

 were strong and active leapers, oftentimes giving 

 several great jumps to a tuft of bunch grass or weeds 

 and gliding down it to the ground. Where they squat- 

 ted close until picked up with the fingers. The fe- 

 males were more sluggish and several were taken 

 from between the stems of grass where they were 

 standing on their heads, after endeavoring to escape 

 by diving downward. This is the most eastern point 

 from which the species has been recorded, its range, 

 as given by Scudder, being from the Rocky Moun- 

 tains to the Mississippi River, though McISreill has taken it in Rock 

 Island and Henry counties, Illinois. 



Fig. 74. Phnta- 

 liotes nehrasoeneis 

 (Thos.). Male. 



(After Logger.) 



XL. Paeoxya Scudder (1877). 



Size, medium. Body straight, sub-cylindrical. Head of average 

 size, the eyes very large and prominent. Vertex narrowed between 

 the eyes, but less so than in Hesperotettix, the narrowest portion, in 

 the male, being about as broad as the frontal costa, broader in the 

 female; the widened portion in front with a broad lengthwise furrow. 

 Frontal costa prominent above the ocellus, flattened below, scarcely 

 sulcate in the male, more strongly in the female. Antennae of male 

 usually more than half as long again as head and pronotum together. 

 Disk of pronotum twice as long as average breadth, its edges nearly 

 parallel, the surface flat or nearly so; the prozona half as long again 

 as the metazona, the surface of the latter finely and densely punctate; 

 the hind margin obtusely and bluntly angulate; the median carina 

 low, of equal height throughout, cut only by the last transverse 

 sulcus. Lateral lobes of pronotum vertical, longer than deep, the 

 lower margin with its front half strongly directed upward. Tegmina 

 and wings variable in length, but in our species always much longer 

 than the pronotum. Hind femora of average stoutness, equaling 

 or more usually surpassing the tip of abdomen. Sub-genital plate 



