416 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 117 



(Brownsville, College Station, Columbus, Cypress Mill, Dallas, Fedor, Gall, 

 Harrisburg, Houston, Jacksonville, Kerrville, Liberty, Mexia, New Braunfels, 

 Palestine, San Felipe, Seabrook, Seguin, Texarkana, Uvalde, Victoria, White 

 Rock Lake, Burnet Co., Colorado Co., Eastland Co., Hays Co.). Virginia (Belle 

 Haven, Cherry dale, Falls Church, Fort Monroe, Great Falls, Mount Vernon, 

 Suffolk, Nelson Co.), West Virginia (Cave Mountain). 



Canada: Ontario (Almonte, Grand Bend, Grimsby, Ottawa, Picton, Point 

 Pelee, Tillsonburg, Toronto, Turkey Point, Hastings Co.). Quebec (Coteau 

 Junction, Montreal). 



Platydema ruficolle Laporte and Brulle 



Plate 5 (Figs. 47, 48) 



Platydema ruficollis Laporte and Brulle, 1831, p. 375. — Haldeman, 1848, p. 102. 

 Neomida sanguinicollis Melsheimer, 1846, p. 61. 



Platydema ruHcolle Laporte and Brulle. — Horn, 1870, p. 382. — Blatchley, 1910, 

 p. 1263. 



Description. — Small, short, broadly oval, strongly convex; head, 

 pronotum, scutellum, and margins of elytra reddish, elytra black, 

 feebly shining. Head broadly arcuate in front, epistomal margin 

 almost truncate, epistomal suture usually well defined; surface uni- 

 formly coarsely and densely punctured; eyes small, widely separated 

 both above and below, convex, deeply and broadly emarginate an- 

 teriorly, anterior dorsal margin deeply set in head, posterior margin 

 sharply elevated, separated ventrally by a distance equal to from 

 2 to 3 times the longer axis of one eye; mouthparts light reddish 

 brown, terminal segment of maxillary palpus broadly triangular; 

 antennae uniformly reddish brown from base to apex. Pronotum 

 2.2 to 2.4 times as broad as long, strongly narrowed from base to 

 apex, sides strongly arcuate, margined only by a very fine reflected 

 bead; basal angles rectangular, apical angles narrowly rounded; 

 disc finely and sparsely punctured, more coarsely so laterally. Elytra 

 convex, sides strongly rounded, narrowly margined with distinct 

 bead; striae moderately impressed, especially laterally and apically, 

 coarsely punctured ; scutellar striae absent ; intervals distinctly convex, 

 very minutely but moderately densely punctulate. Prosternal pioc- 

 ess horizontal, its apex broadly triangular and prominent, margined 

 between coxae. Ventral surface of pronotum concave, smooth, very 

 thin on lateral margins; entire ventral surface reddish brown, legs 

 usually hghter. Metasternum and basal four abdominal sternites 

 with widely spaced, abnormally larger punctures, apical two abdom- 

 inal sternites finely and rather sparsely punctulate, fourth sternite 

 conspicuously impressed laterally. Male aedeagus with basal sclerite 

 comparatively longer than apical sclerite, no constriction between 



