182 GEO. H. HORN, M. D. 



except at the middle of the occiput. Thorax rather more than twice as wide as 

 long, arcuately narrowing to the front, margin narrow, disc rather coarsely, not 

 densely punctate, color reddish, with piceous spots, two in the anterior row, four 

 in a posterior arcuate row ; these are usually more or less confluent or forming 

 a zigzag band. Elytra a little wider at base than the thorax, humeri rounded, 

 umbone distinct, smooth, surface closely and moderately coar.sely punctate. 

 EpipleuriB pale nearly their entire length. Body beneath and legs reddish yel- 

 low, the tibise and tarsi piceous. Abdomen shining, indistinctly sparsely punc- 

 tate. Length .20 — .26 inch ; 5 — 6.5 mm. 



The sculpture of the upper surface resembles the most coarsely 

 punctate forms of vians, which it also resembles in general ap))ear- 

 ance. The under surface is always entirely reddish yellow. There 

 is very little variation, except in surface color of the elytra and the 

 greater or less confluence of the thoracic spots. 



AVidely distributed over the entire region east of the Rocky 

 Mountains. 



4. <E. vians Illig. — Oblong oval, moderately convex, very shining. An- 

 tennae black, scarcely as long as half the body, third joint longer than fourth. 

 Head black, sometimes with a pale vertical spot, frontal carina obtuse, tubercles 

 distinct, vertex rather closely punctate. Thorax twice as wide at base as long, 

 narrowed in front, sides nearly straight, margin narrow, surface distinctly punc- 

 tate, either rather coarsely or moderately finely, color usually yellowish with 

 five piceous spots confluent and forming the letter M. or extending into a large 

 discal spot, so that only the margins are narrowly pale; scutellum black. Elytra 

 a little wider at base than the thorax, humeri distinct, umbone moderately 

 prominent, smooth, surface usually closely punctate, although variable in dis- 

 tinctness, color black, with a slight violet lustre. Epipleurte concolorous; pro- 

 thorax beneath yellow, meso- and metasternum black. Abdomen piceous at 

 middle, broadly yellow at sides and apex, surface shining, very sparsely punc- 

 tate. Legs entirely black. Length .16 — .28 inch ; 4 — 7 mm. 



This species varies in the color of the thorax, as stated above, 

 those with the large discal space being the typical vians, while those 

 with the M shaped mark are scriptkollis Say. The sculpture of the 

 surface may be rather fine or moderately coarse. The abdomen also 

 varies in the extent of the yellow color, sometimes only the middle 

 of the first two segments is piceous. 



Occurs nearly everywhere east of the Rocky Mountains 



.5. OE. coiiciiiiia Fab. — Oblong oval, moderately convex, feebly shining, 

 black, elytra slightly greenish or blue, abdomen yellow at apex. Antennae black, 

 not half as long as the body, third joint longer than fourth. Head black, frontal 

 carina indistinct, tubercles well marked, a distinct concavity of the vertex, 

 which is coarsely closely punctate. Thorax twice as wide at base as long, nar- 

 rowed in front, sides straight or feebly arcuate, the margin moderate, surface 



