yO MAINE AGRICULTURAL EXPERIMENT STATION. I916. 



show a quite close restriction to this one kind of grass. So far 

 no specimens have been found in places where timothy is no: 

 present and while it cannot be asserted that it cannot live on 

 other grasses we may confidently assume that this is its prin- 

 cipal food plant. 



The nymphs and the adult males have a light clay color blend- 

 ing well with the soil and very different from the females, also 

 very different from nymphs of such species as feed above. 



The life history of the species appears to follow ciOsely the 

 other species having a single brood each year and which are 

 adapted to rapid development of nymphs during the early- 

 summer. 



Fig. 3. Acocephalus albifrons L. a, nymph of las't instar; b, male; 

 c, female. All enlarged, natural size shown in length lines at left of each 

 figure. (Original). 



At the time of the first observations on the species bot.i 

 nymph and adults were to be found and there is every reason 

 to believe that the adults were the maturing individuals of the 

 seasons brood of nymphs and that they were develope 1 from 

 nymphs that had hatched from hibernating eggs. That the 

 eggs are deposited and hibernate in the fields is shown by the 

 finding of the nymphs and adults in the cages placed in early 

 spring. There were no dead adults or remnants cf their bodies 

 as might have been expected if the adults hibernated and de- 

 posited eggs in spring. The early nymphal stages were not ob- 

 served but the stages observed in June and early July were well 



