238 IOWA ACADEMY OF SCIENCES. 



Xijyhidium 7iemorale Scudd. Rather rare. 



XipMdium fasciatum DeGeer. Abundant in meadows every- 

 where. 



Xiphidium atienuatum Scuid. Rare. 



Xiphidlum Ijrevipenne Scudd. Abundant in low woods and 

 meadows in September and on into October. 



Xipjhidi'nm nigropleurum Braner. Rare. 



Fam. ACRiDiD^ — Grasshoppers. 



TETTIGIN^. 



Tettix ornatus Say. Abundant in woods and along the mar- 

 gins of the streams. 



Tettix arenosus Burm. Common in the timber. More abun- 

 dant in the early spring than the preceding species. 



Tettix granulatus Kirby. This slender form is rather rare. 



Paratettix cucuUatus Scudd. Adults abundant in the middle 

 of the summer. Larvse have been taken in the late fall and 

 early spring. 



Tettigidea parvipoinis Harr. Abundant in low timber land, 

 where the undergrowth is short. The long- winged form, pen- 

 nata, is much more abundant than the other. 



TRYXALIN^. 



Pseudopomala hracJiyptera Scudd. Small larvse of this species 

 were taken May 12th, and from then until July 3rd, when the 

 last, a full grown female pupa was found. The first adult, a 

 male, was taken June 6th; the first female was taken July 3rd, 

 and the last September 12th. All of these specimens were 

 found on prairie grass principally Andropogon scoparius. 



Mermiria biviitata Serv. One specimen. 



Dicromorpha viridis Scudd. Rather rare. Adult males were 

 taken July 4th and 30th, the females mainljT- in August. 



Eritettix tricarinatus Thos. This species hibernates as 

 nearly full grown larvas. Adults were first found April 24th 

 and were taken from then until July 4th. Small larvse were 

 first found the last of August and were abundant throughout 

 the fall until into October. This species was also found on A. 

 scoparius and occurred sparingly on the Bouteloas. 



Orphula speciosa Scudd. Common from July until Septem- 

 ber as adults on the prairie grasses. Larvse have been taken 

 from the first of May until July. 



Chloealtis conspersa Harr. Adults were taken this season 

 from June 17th until into September, from a moderately shaded 

 pasture. 



