DIAPERINI NORTH OF MEXICO TRIPLEHORN 411 



Park, McHenrj^, Quincy, Willow Springs, Saint Clair Co.). Indiana (Lafayette, 

 Clark Co., Fountain Co., Jackson Co., Jennings Co., Lake Co., Lawrence Co., 

 Marion Co., Marshall Co., Perry Co., Putnam Co., Starke Co., Vigo Co., Warren 

 Co.). Iowa (Ames, Gladbrook, Iowa City, Lehigh, Shenandoah, Washington Co.). 

 Kansas (Argentine, Douglas Co.). Kentucky (Frankfort, Louisville, Edmonson 

 Co.). Louisiana (Covington). Maryland (Baltimore, Bladensburg, Glen Echo, 

 Odenton, Plummers Island, Riverdale, Somerset, Tacoma Park). Massachusetts 

 (Arlington, Beach Bluff, Boston, Cambridge, Dorchester, Lowell, Marion, Nahant, 

 Natick, Northfield, Sherborn, Springfield, Swampscott, Tyngsboro, Woburn). 

 Michigan (Detroit, East Lansing, Galesburg, George Reservation, Inkster, Pitts- 

 ford, Port Huron). Minnesota (Eitzen, John Latsch State Park, Lake Pepin, 

 Mississippi Bluff). Mississippi (Columbia, Lucedale, New Augusta, State Line). 

 Missouri (Hayden, New Hartford, Saint Louis). New Hampshire (Farmington). 

 New Jersej' (Anglesea, Atsion, Boonton, Camden, Chadwicks, Clementon, Engle- 

 wood Chffs, Fort Lee, Hemlock Falls, Highlands, Hopatcong, Lakewood, Malaga, 

 ]\Ierchantville, Orange, PhilUpsbui-g, Riverton, Taunton Lake, Tenafly, Vineland, 

 Wenonah, Woodbury). New York (Aqueduct, Brooklyn, Brownville, Cedar- 

 hurst, Cold Spring Harbor, Flatbush, Flushing, Forest Park, Ithaca, Kew Gardens, 

 McLean, INIontauk, New York City, Olcott, Peekskill, Riverhead, Rockaway Beach, 

 Sunken Meadow State Park, Wading River, West Farms, West Point, Wyandanch, 

 Yaphank). North Carohna (Asheville, Lake Toxaway, Mount Sterhng, New 

 River, Southern Pines, Tryon, Wilkes boro). Ohio (Akron, Athens, Cincinnati, 

 Columbus, Georgesville, Allen Co., Delware Co., Fairfield Co., Hocking Co., 

 Licking Co., Scioto Co.). Pennsylvania (Allegheny, Belle Vernon, Bethlehem, 

 Bustleton, Castle Rock, Cresent Hill, Doyle, Easton, Frankford, Harrisburg, 

 Jeannette, Overbrook, Philadelphia, Pittsburgh, State College, Tinicum Island, 

 Villanova, West View, Delaware Co., Washington Co., York Co.). Rhode Island 

 (Watch Hill). South Carolina (Clemson College). Tennessee (Deer Lodge, 

 Elmwood). Texas (Dewey ville, Liberty). Virgina (Fairfax, Falls Church, 

 Fredericksburg, Great Falls, Pennington Gap, Vienna, Lee Co., Nelson Co.). 

 West Virginia (Berkeley Springs, Cheat Mts., Fairmont, Harpers Ferry, ]\Iorgan- 

 town). Wisconsin (Dane Co.). 

 Canada: Ontario (Grimsby). 



Platydema picilabrum Melsheimer 



Plate 4 (Fig. 30) 



Platydema picilabrum Melsheimer, 1846, p. 62. — Horn, 1870, p. 384. — •Blatchley, 

 1910, p. 1264. 



Description. — Body elongate oval, strongly convex, dark brown 

 to blackish with bluish, greenish, or coppery reflections, shining. 

 Head convex between eyes, rather uniformly coarsely and densely 

 punctured, antennae and mouthparts reddish brown, terminal seg- 

 ment of maxillary palpus short, broadly triangular; eyes small, convex 

 dorsally but with inner margin not conspicuously raised above plane 

 of head, separated ventrally by a distance equal to from 1}^ to 3 times 

 the longer axis of one eye. Pronotum transverse, sides feebly arcuate, 

 almost parallel, basal angles obtusely rectilinear, apical angles very 

 broadly rounded, lateral marginal bead fine, surface rather uniformly 

 coarsely and densely punctured. Elytral striae strongly impressed, 



