34 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



Type: USNM 63543. 



Type locality: Stokes, Colleton Co., S. C. 



The holotype male was collected by Miss Lotta Bootle in September 

 1924. The allotype (USNM) was taken at Columbia, S. C, Sept. 22, 

 1923, by Philip Luginbill. 



There are 99 male and 36 female paratypes deposited in the U. S. 

 National Museum, Canadian National Museum, Academy of Natural 

 Sciences of Philadelphia, Museum of Comparative Zoology, University 

 of Michigan, University of Arizona, Clemson Agricultural College, 

 Florida Plant Board, and the collection of John R. Hilliard. The para- 

 types are from the following localities : 



North Carolina: Weldon, Greensboro, Pilot Mt., Charlotte, Roan Valley, Mt. 



Mitchell, Asheville, Hendersonville, Black Mts., Valley of Black Mts., Balsam, 



Sunburst, Highlands. 

 South Carolina: Green Sea, Mullins, Cheraw, Florence, Manning, Columbia, 



St. Paul, Eutawville, Stokes, Clemson, Madison. 

 Georgia: Rabun Bald, Black Rock Mountain, Tallulah Falls, Louisville, Dublin, 



Stone Mountain, Atlanta, Locust Grove, Cedar Rocks (5 miles north of Jackson), 



Barnesville, Macon, Montezuma, Smithville, Calhoun, Sand Mountain (near 



Trenton) . 

 Florida: Gainesville, Alachua Co., Hamilton Co., Houston, Lake Miccosuke 



(Jefferson Co.), Quincy, Gadsden Co., Rock Bluff Landing (Liberty Co.)^ 



"Camp Torreya" (Liberty Co.), Jackson Co., Marianna, Chipola. 

 Alabama: Auburn, Stokes, Selma, Greenville, Flomaton, Canebreak. 

 Mississippi: Meridian, Perkinston, Jackson, Vicksburg. 

 Louisiana: Harahan, Ruston, Sibley. 



Most of the specimens from additional localities shown on the map 

 (fig. 6) for bilituratus vulturnus are typical, but some vary toward 

 bilituratus bilituratus, though not sufficiently to be considered inter- 

 mediates, and so are not designated as paratypes. However, males 

 from other localities, as mapped, are considered intermediates between 

 bilituratus bilituratus and bilituratus vulturnus. 



Biology and economic importance : In many localities bilituratus 

 vulturnus becomes extremely abundant, and it is highly important 

 economically, especially in the western part of its range. Kansas, 

 Oklahoma, and Missouri are the chief States where it is very injurious. 

 Wilbur and Fritz (1940) stated that during the 1933-39 outbreak in the 

 bluestem region of eastern Kansas it was the most injurious crop infest- 

 ing grasshopper, and they briefly described the buildup of its popu- 

 lation during several drought years. 



Morse (1904, p. 42) referred to this grasshopper as "probably the 

 most widely and generally distributed" of those found in the South- 

 eastern States, but this opinion differs from that of Rehn and Hebard 

 (1916, p. 237), who found bilituratus vulturnus (reported as atlanis) 



