Dec, 1915] Jassoidea of Missouri 77 



Jassus olitorius Say. Not common. A few adults taken in 

 southeast Missouri. Observed them feeding upon alfalfa. 



Balclutha punctatus Thunbg. Only record of occurrence is from 

 Pattonsburg. 



Gnathodus impictus VanDuzee. Not numerous. Observed 

 feeding on grasses and several weeds at Charleston during 

 May. 



Cicadula 6-notata Fall. Occurs in all sections of the state, most 

 abundant in northeast. Known to feed upon wheat, oats, 

 and grasses. Especially numerous during October. 



Empoasca mali LeB. One of the most common and probably 

 the most injurious leafhopper. Feeds on a great variety of 

 plants, shrubs and trees. A pest of field crops, nursery 

 stock, and orchards. Especially abundant during the 

 summer of 1915 on alfalfa and clover. In early spring 

 adults have been observed feeding on wheat, rye and native 

 grasses. Exhibits great adaptability to changes of climate 

 and host plants. 



Empoasca smaragdula Fall. Listed by Gillette as occurring in 

 the state. 



Empoasca radiata Gillette. Swept from willows growing in the 

 Missouri Botanical Gardens at St. Louis. 



Dicraneura abnormis Walsh. Not common. Few specimens 

 collected from blue grass and around lights at night at 

 Chillicothe, during September. 



Typhlocyba illinoiensis Gillette. Noted feeding on rose leaves 

 in the Missouri Botanical Gardens at St. Louis. 



Typhlocyba obliqua Say. Very abundant on many weeds at 

 Springfield during August. 



Typhlocyba trifasciata Say. Listed by Gillette as occurring in 

 the state. 



Typhlocyba tricincta Fitch. Abundant on several ornamental 

 bushes in Missouri Botanical Gardens at St. Louis. Adults 

 exceedingly quick of movement. Also collected at Pat- 

 tonsburg and Columbia. 



Typhlocyba comes Say. Abundant throughout the state. A 

 severe pest of grapes, especially in southeast Missouri. 

 Feeds on a number of weeds. Attracted to lights at night 

 in considerable numbers. 



