DIAPERINI NORTH OF MEXICO — TRIPLEHORN 419 



of limited series it appears that these patterns are quite constant and 

 afford excellent diagnostic characters. 



Most nearly approximating P. ellipticum are P. hogei Champion, 

 from Mexico, and P. affine Laporte and Briilie, from Brazil, Argen- 

 tina, and Uruguay. Both of these have two transverse bands of red on 

 each elytron ; in the latter species, the posterior band encompasses the 

 entire apex of each elytron while in P. hogei, the extreme apex is black. 

 Two other species with obviously close affinities include P. diophthalmum 

 Laporte and Brulle, from most of Central America and Cuba, and P. 

 bimaculatum Champion, from Central America, both of which have a 

 single, rounded red spot on each elytron; in the former species the 

 spots are located near the base of each elytron, in the latter, they are 

 found near the middle. 



Weiss (1919) reports that P. ellipticumis commonly associated with 

 the shelf fungus, Polyporus gilvus, in New Jersey. Both larvae and 

 adults were foimd in this fungus in mid-September, 



Type. — Not seen; type locality, "Cai'olina." 



Specimens examined. — From the following localities, 1015: 



United States: Alabama (Cheaha State Park, Mobile, Monroeville, O.^ford). 

 Arkansas (Fayetteville, Hope, Washington Co.). Colorado (Denver). Connect- 

 icut. Delaware (Bombay Hook, Glasgow, Newark). District of Columbia. 

 Florida (Biscayne Bay, Brooksville, Cresent City, Dunedin, Enterprise, Gaines- 

 ville, Kissimmee, Lakeland, Miami, Palatka, Pine, Punta Gorda, Sanford, 

 Tildenville, Winter Park, Citrus Co., Duval Co.). Georgia (Athens, Boston, 

 Cornelia, Dunwoody, Hartwell, Milledgeville, Savannah, Thomasville, Tifton). 

 Illinois (Centralia, Fort Sheridan, Galesburg). Indiana (Hovey Lake, La Porte, 

 Terre Haute, Crawford Co., Jennings Co., Knox Co., Lagrange Co., Marion 

 Co., Posey Co., Vigo Co.). Iowa (Ames, Clermont, Fort Madison). Kansas 

 (Argentine, La\\Tence, Lone Star Lake, Manhattan, Onaga, Topeka). Ken- 

 tucky (Louisville). Louisiana (Baton Rouge, Bayou Sara, Greenwell Springs, 

 Negreet, New Orleans, Opelousas, Ponchatoula). Maryland (Edgewood, Uni- 

 versity Park). Mississippi (Leaf, Lucedale, New Augusta, State Line, Jackson 

 Co.). Missouri (Columbia, Corondelet, Kansas City, Rosati, Saint Charles, 

 Saint Louis, Valley Park). New Jersey (Anglesea, Blackwood, Englewood, 

 Merchantville, Rahway, Riverton, Springfield, Vineland). New York (Bergen 

 Beach, Flushing, Jamaica, MoUiswood, New York City, Queens, Rosedale, 

 Staten Island). North Carolina (Southern Pines, Tryon). Ohio (Athens, 

 Canaan, Cincinnati, Columbus, Holmesville, Allen Co., Delaware Co., Fayette 

 Co., Greene Co., Hocking Co., Perry Co., Vinton Co.). Oklahoma (Osage, 

 Stillwater). Pennsylvania (Angora, Castle Rock, Essington, Fern Rock, Ger- 

 mantown, Glenolden, Harrisburg, Jeannette, Linglestown, Overbrook, Pitts- 

 burgh, Uniontown, Union ville, Wilmerding, Wyoming, Allegheny Co.). 

 South CaroUna (Camden, Greenville, Jackson, Sassafrass Mt.). Tennessee 

 (Madison, Memphis). Texas (Bay City, Columbia, Dallas, Harrisburg, Hous- 

 ton, Lake Charlotte, New Braunfels, Paris, Rock Island, Victoria, Cherokee Co., 

 Colorado Co.). Utah. Virgiua (Cobham, Falls Church, Lake Drummond, 

 Vienna, Fluvanna Co., Nelson Co.). 



