270 ENTOMOLOGICAL NEWS. [June, 'l6 



species are Hamburg and Clarinda, Iowa. We have, however, 

 had, an insect described to us from near Fort Dodge, Iowa, by 

 a very accurate, though non-entomological, observer, which, 

 judging from size, must certainly have been this species. In 

 this genus as in the following, the males are more highly col- 

 ored and have the anterior femora green, while the females 

 are almost unicolorous grayish or brownish. The immature 

 forms are grayish, brownish or green, with the middle femora, 

 especially in the female strongly marked with white spots. 

 The legs of the young are quite short and decidedly stout. 

 The species is found on shrubs and trees and does not appar- 

 ently differ greatly in habits from the well-known Diaphcro- 

 tnera femorata. 



Diapheromcra Gray is represented by two species which may 

 be separated by the following characters : 



Male cerci with a blunt basal tooth on inner margin ; female cerci 

 scarcely more than one-half as long as the eighth abdominal segment 



D. fcmorata Say. 



Male cerci with an acute slender basal tooth on inner margin; female 

 cerci decidedly more than half as long as the eighth abdominal segment 



D. zviiei Walsh. 



D. femorata Say is the most common and widely distributed 

 of American walking sticks and because of its wide range is 

 quite variable in size and coloration. It is probable that many 

 records of this species may include one of the two following 

 species. It is found throughout both Missouri and Iowa, while 

 in Minnesota it is most common in the southern and eastern 

 portions. The immature stages are of a soft greenish color 

 and occur on tall grasses and herbage, while later in the sea- 

 son the adults are found on shrubs and trees. 



D. vclici Walsh is much less common and tends to be rather 

 local in distribution. It has been taken through most of west- 

 ern Missouri, from Joplin northward and through all of west- 

 ern Iowa, extending far up into the valley of the Red River 

 of the North in Minnesota, where the writer has taken it as 

 far north as Crookston. In the eastern portion of these three 

 States, however, the records are more scattered. We have 

 taken it at Spickard and Memphis, Missouri; Ehnira, Central 



