THE SHORT- WINGED SO WENGETJ BEETLES. .'^•'l'^ 



j. Seventh dorsal segment of male with a small flat tubercle. 



673. UNIUKANOSA. 



jj. Seventh dorsal segment of male simple. 674. vikqinica. 



cc. 'i'hird joint of anteunre at least one-third shorter than second. 

 /. . < !olor black and yellovs'. 



/. Thorax as broad as elytra ; form much stouter than in the 

 next 668. flweola. 



II. Thorax distinctly narrovi^er than elytra ; form slender. 



669. PENNSYLVANICA. 



kk. Color blacli or piceous, the elytra often slightly paler. 

 in. Head and thorax coarsely, evenly and sparsely punctate. 



670. PUNCTATA. 



mm. Head and thorax very finely punctate. 



n. Antennse wholly piceous; legs fuscous. 671. polita. 



nn. Antennae with basal joints pale; legs wholly pale. 



072. festinans. 

 III). Abdomen narrowed or more or less pointed behind the middle. 



o. Antennse long and stout, reaching nearly to middle of elytra ; 

 thorax finely, densely but distinctly punctate ; color black. 



675. mackocera. 

 00. Antennse shorter and more slender, reaching only to base of elytra. 

 p. Third joint of antennse distinctly longer than second. 



q. Elytra dull yellow- with a me<liau black cloud at base; thorax 

 n(jt impressed. 676. sordida. 



qq. Elytra uniform brown ; thorax with a median impression (5n 

 basal half. 677. • laurentiana. 



pp. Third joint of autennaj shorter than, or at most as long as sec- 

 ond. 

 r. Aijicnl half of abdomen piceous; thorax and elytra coarsely 

 and densely punctate. 678. luteot.a. 



ir. I>ast two joints of abdomen pale yellow ; thorax and elytra 

 finely, less densely punctate. 679. sxjbpygm.ea. 



(in. Byes very small, separated by three or more times their long diameters. 

 s. Front of head convex. 680. analis. 



ss. Front of head concave. 681. cavifrons. 



(;62 (9503). Atheta palTjsteis Kiesw., Stett. Ent., Ztg., V, 1844, 318. 



Elongate, rather slender. Head and abdomen black ; antennse, thorax 

 and elytra piceous, finely and sparsely pubescent ; legs dusky yellow. Head 

 convex, finely and closely punctate ; antenufe short, stout, reaching base of 

 thorax, the second and third joints equal. Thorax about as wide as long, 

 sides rounded into base, disk finely and densely punctate. Elytra one- 

 fourth wider, one-halt longer and more coarsely and distinctly punctate 

 than thorax. Length 1.8-2 mm. 



Marion and Pntnam counties; scarce. March 25-April 11. 

 Taken by sifting moist vegetable debris. 



663 (2011). Atheta dichroa Gray., Col. Micr., 1802, 186. 



Elongate, moderately robust. Black, feebly shining; legs, base of an- 

 tennse, elytra and tip of abdomen dull .N-ellow. Antennse reaching base of 

 thorax, the third joint slightly longer than secoiid. Thorax nearly one- 



