140 



MAINE AGRICULTURAL EXPERIMEXT STATION. 



1915- 



This is one of the most abundant and widely distributed species of the 

 genus throughout the eastern U. S., but it seems to be confined in Maine 

 to the southern and eastern portion of the state. To the north it appears 

 to be replaced by aperhis. 



One specimen taken at Orono in pasture July 31st, Portland Aug. 14th, 

 Highmoor Farm Aug. 15th, Mt. Katahdin Aug. 22, 1913, and an adult 

 male at Orono on Cornus July 24, 1914. 



While distinctly an economic species in some parts of the country it 

 would appear from the scarcity and limited occurrence in Maine that it 

 may be disregarded in this respect. 



Fig. 33. The irrorate leafhopper (Phlepsius irroratus) : a. Adult ; bj 

 vertex and pronotum; c, face; d, female genitalia; e, male genitalia'; /, 

 nymph from specimen taken at Toledo, Ohio. All enlarged. (From 

 U. S. Dept. Agric. Bureau of Entomology — Bui. No. 108.) 



Phlepsius apertus Van Duzee. 



Phlepsius apertus Van Duzee, Am. Entom. Soc. Trans. XIX, y6, (1892). 



This is about the size and much the appearance of irroratus, dark 

 gray in color distinctly irrorate but with a more distinct pale band across 

 the elytra near the base. It is most positively known by the wide deep 

 excavation of the middle part of the last ventral segment of the female. 

 Length 6 mm. 



The species seems to replace irroratus throughout the northern part of 

 the state, especially where irroratus is rare or in some localities appar- 

 ently wanting. It was taken in fair numbers at the base of Mt. Katahdin 

 Aug. 22nd and in abundance at Houhon Aug. 24th, Mars Hill Aug. 25th, 



