148 MAINE AGRICULTURAL EXPERIMENT STATION. I915. 



This is one of the most generally distributed species encounitered in 

 the state and it must probably be counted one of the most injurious 

 on account of its numbers and the crops affected. It has been observed 

 at Orono, being fairly common in oats and timothy July 31st on the 

 Station grounds but not so abundant as to occasion marked injury, and 

 on Aug. 1st both larvae and adults were noted in timothy. It was also 



Fig. 34. The six-spotted leafhopper (Cicadula 6-notata) : a, 

 Adult; h, face; c, wing; d, female genitalia; e, male genitalia; f, 

 nymph. All enlarged. (From U. S. Dept. Agric. Bureau of 

 Entomology — Bui. No. 108.) 



taken on garden plants Aug. 9th. Other records are North Harps- 

 well, Aug. I2th, where it was quite plenty on oats and fairly common 

 in pastures, especially low ground. Portland, Aug. 12th, in marsh 

 meadow and adjacent to grass, Highmoor Farm Aug. 15 on oats, grass, 

 timothy, potatoes, Mt. Katahdin Aug. 21st, Houlton Aug. 24th, Ft. 

 Fairfield Aug. 25th, Phair Aug. 25th, common on oats and grass. Ft. 

 Kent Aug. 28th, oats and grass, Princeton Aug. i6th, Kineo Aug. 17th. 



At Highmoor Farm this species was found quite abundant and con- 

 siderable injury to oats could be credited to it. The leaves showed 

 much evidence of punctures often associated, probably followed by, 

 attacks of rust or fungous disease. In many instances as had been 

 observed by Dr. Surface, punctures at the base of the glumes passing 

 through to the kernel were evidently responsible for injury to the grain. 



It occurred also on many other plants, commonly on grasses, timothy 

 especially ; buf a more unusual occurrence was noticed on potatoes and 

 corn. This occurred probably only on the ripening of the adjacent 

 oats and migration of the hoppers as no larvae were observed on either 

 of these crops. The occurrence on corn is especially interesting as it is, 

 I think, not only the first occurrence for this species but the first time 

 I have encountered any of the jassids living on this crop. In no case 

 was the insect present in excessive numbers and still the injury to oats 

 was sufficient to deserve attention. 



The results of a study of the life history of this species in 1914 will 

 appear in a forthcoming bulletin. 



