ADDITIONS TO THE JASSOIDEA OF MISSOURI. 



J. L. HORSFALL. 



In Vol. XVI, No. 2, of this Journal, Gibson and Cogan 

 published a Preliminary List of the Jassoidea of Missouri in 

 which 98 species and varieties were recorded. The writer, 

 while employed by the Missouri Fruit Experiment Station at 

 Mountain Grove, Missouri, during the past two summers made 

 a collection of 84 species of Jassoidea in that immediate region. 

 Unless otherwise mentioned the specimens were collected by 

 him. In this material are 29 species not listed in the above 

 named paper. Thanks are due Professor Herbert Osborn of 

 Ohio State University for verification and determination of six 

 of the more doubtful species. The notes on the undetermined 

 forms were furnished by him. 



Idiocerus aiternatus Fitch. One specimen taken July 3, 



sweeping low shrubs along a pasture creek. 

 Penthimia americana Fitch. Rare. One specimen dated 



July 5, in collection. Probably swept from Black Jack 



brush. 

 Xerophloea viridis Fabricius. Both the plain green and the 



dark form taken in September. 

 Gypona scarlatina Fitch. One specimen in traplight material 



from substation at Cuba, Missouri, May 26, 1914. 

 Platymetopius magdalensis Provancher. From Black Jack 



brush in July. 

 Deltocephalus areolatus Ball. In short grass in peach orchard, 



September. Taken sweeping in Winter Emmer by M. P. 



Somes, November 8, 1915. 

 Deltocephalus sp. "Near stylatus Ball but with different 



genitalia." Osborn. Common in weedy pastures July, 



August, September. 

 Athysanus striolus Fallen. One specimen September 5. 

 Driatura gammaroidea Van Duzee. Fairly common, July. 



Taken in timothy field in which there was an abundance 



of ragweed. 

 Driatura gammaroidea var. flava Osborn and Ball. Sometimes 



found with the preceding species. 



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