298 PEOCEEDINGS OF THE ACADEMY OF [April, 



Blowing Rock, VIII, 1905-1906, (R. S. Linville, VIII, 28, 1906, (R. S. Wol- 



Wolgum; F. Sherman), 2 cf, 19, gum), 1 cf, [N. C. State Dept. Agr.]. 



[N. C. State Dept, Agr.]. Waynesville, IX, 14, 1909, (Z. R 



Grandfather Mountain, 4,000 feet, IX, Metcalf), 2 cf , [N. C. State Dept. 



11, 1908, (Z. P. Metcalf), 3 9, Agr. and Brimley Cln.]. 



[N. C. State Dept. Agr.]. Montreal, 3,000 feet, IX, 21-22, 1908, 



(Z. P. Metcalf), 19, [Brimley Cln.]. 



In addition to the normally very distinctive coloration of this 

 insect, it may be further distinguished from the allied O. quadri- 

 punctatus by the heavier pronotum, the greatest width of which 

 more closely approximates the length of the same than in that 

 species, while the head between the eyes is weakly but distinctly 

 depressed, a condition not at all or rarely very weakly indicated 

 in qaadripunctatus. 



Only a few specimens in the present series do not exhibit the very 

 strongly denned normal type of coloration, these have the dark 

 markings slightly paler, while in a single female the color pattern is 

 still more decidedly recessive and only in part indicated. 



We believe the present species to be confined to the Appalachian 

 portion of the regions at present under consideration. It is widely 

 distributed over the north-central and central-eastern portions of 

 the United States and is the most abundant species of the genus in 

 southern Ontario. Numerous records of nigricornis and the synony- 

 mous fasciatus are, however, erroneous. On the Atlantic coast it is 

 known to occur over but a comparatively limited area north of the 

 territory here studied. The insect is found in weeds and low plants 

 in the open, but particularly in tangles of raspberry vines; it is usually 

 locally distributed, but very abundant. 



(Ecanthus pini Beutenmiiller. 



1911. (Ecanthus nigricornis Rehn and Hebard, (not of Walker, 1869) f 

 Proc. Acad. Nat. Sci. Phila., 1910, p. 649. [Raleigh, North Carolina.] 



Raleigh, N. C, IX, 7 and 22, 1904, (C. S. Brimley; upland field and alders in 

 pine woods), 2 9 , [Hebard Cln.j. 



This species shows nearest relationship to O. nigricornis, but is 

 somewhat more robust, with coloration and color pattern distinctive 

 and wholly different, with pronotum normally slightly heavier and 

 more nearly quadrate, and with the head between the eyes even 

 more decidedly depressed. The antennal markings are much as in 

 specimens of that species in which such markings are apparent; 

 in O. quadripundatus these markings are very similar, but with 

 outline more abruptly and evenly defined. 



The present species, we believe, is wholly arboreal and only found 



