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THE UNIVERSITY SCIENCE BULLETIN. 



which meet dorsally and are wide apart ventrally and whose rounded 

 margins are strongly serrate. The last ventral segment of the male is 

 about twice as wide as long, the lateral margins sinuate to the rounded 

 posterior margin. The pygofers of the female have the margins evenly 

 rounding to the prominent median spine. The last ventral segment of 

 the female has a very large incision posteriorly which reaches over one- 

 half the distance to the base. The ovipositor is provided with about 

 thirteen quite even and similar teeth on each side. 



Distribution: According to Marlatt, only Broods I and IV 

 are known to occur in Kansas. The former brood is recorded 

 by him (Bui. 71, U. S. Dept. Agr., Div. Ent., 1907) from Leav- 

 enworth and Dickinson counties. Brood IV is our big brood 

 and is recorded from the counties marked on the following 

 map. In addition to Marlatt's record, specimens have been 

 taken from Atchison, Butler and Riley counties and these, with 

 the records of Brood I, are included in the map. None of these 

 broods go further west than Kansas, and it is very likely that 

 other broods of the 17-year race and some broods of the 13- 

 year race occur in the state, but there seem to be no records 

 of them. 



Remarks: Marlatt gives the three different notes charac- 

 teristic of the song of this species as follows : 



1. At the height of the season, when many males are sing- 

 ing together, the most characteristic note is represented by the 

 letters tsh-e-e-E-E-E-E-e-ou. Thus it was described by Fitch. 



2. Early in the season when few males have emerged the 

 Pha-r-r-r-aoh note is heard. 



