278 REPORT OF STATE GEOLOGIST. 



Tlie eyes of male of this species are larger and more prominent 

 than usual. The vertex, viewed from above, is about as broad as the 

 eye, with a faint trace of median carina on the posterior half. Pro- 

 notum with the disk flat on metazona, somewhat sloping on prozona. 

 slightly angulate in front, acute angled behind; median carina liigh, 

 compressed, arched, especially on metazona, the prozona in the male 

 with crest of carina distinctly sloping toward the head; the notch 

 plainly oblique and very narrow. Tegmina surpassing the femora 

 by about one-third their own length. In most specimens the legs 

 and the ventral portion of body are very pubescent, with rather long, 

 grayish hairs. 



Measurements: Length of body, male, 19 mm., female, 24 mm.; 

 of antenna?, male, 12 mm., female, 11.5 mm.; of pronotum, male, 5 

 mm., female, 6.5 mm.; of tegmina, male, 19 mm., female, 23 mm.; 

 of hind femora, male, 11 mm., female, 13 mm. 



This small but handsome locust is quite common in the sand cov- 

 ered areas of the northern third of the State, having been taken in 

 Fulton, Marshall, Lake, Porter, LaPorte, Starke, Kosciusko ami 

 Steuben counties. The earliest date at which it has been taken is 

 July 14th, in Fulton County, when it was found in numbers and had 

 probably been mature for a week or longer. It oc'curs most abun- 

 dantly along the thinly vegetated sandy tracts twenty rods or more 

 back from the water margin of lakes, in old sandy cultivated fields 

 and along railways and roadsides. In such localities it is often found 

 in company with Psinidia fenestralis and less frequently with S. holli. 

 It seldom leaps when disturbed, but uses the wings to propel itself 

 in a flight of about 30 yards; the males making a faint crackling noise 

 as they clear themselves from the earth, while the females are noise- 

 less. In a corn field near Lake Maxinkuckce, I found wyomingianum 

 very common on August 17, 1893, over about two acres of the most 

 sandy portion. Resting on the soil between the rows, they were very 

 diificult of detection, and eight times out of ten were not seen until 

 fl.ushed, unless they had previously been "marked down" as they 

 alighted. A few were also taken from the sandy margin of the lake, 

 but careful search over a wide extent of territory failed to reveal 

 them elsewhere. It will probably be found in the vicinity of most 

 of the lakes of the State. It is more frequent northward and west- 

 ward, but has been taken in Maryland and New York, and may possi- 

 bly occur in the sand covered area of southwestern Indiana. 



