265 



well-rounded angles and the form of that of Harpahts herbivagus. 

 Unlike Harpalus, however, it has three dorsal series of elytral 

 punctures, 4 or 5 in each row, located on the 3d, 5th, and 7th inter- 

 vals. The tibial and tarsal angles are not prolonged; the fore 

 tarsi are spinulose beneath, slightly dilated; the first joint of the 

 hind tarsi is not elongate. The antenna has the proximal two joints 

 glabrous; the eyes are rather small; the left mandible is chisel- 

 shaped, slightly overlapping the right; the labial palpi are plurise- 

 tose in front, the last joint slightly shorter than the preceding one; 

 the mentum is acutely toothed at middle, its epilobes are narrow, 

 and it has a single setigerous puncture at each posterior angle. 



Note 13, p. MS— Hype ra $/>/'</; t/x trimaculatus. In this speci- 

 men the two pale vittae — lateral and sutural — of each elytron are at 

 base slightly broader but not united, the three black intervals of 

 equal width at base. 



Note 14, pp. 243, 2H.—Calopteron. I offer the following key 

 to facilitate the separation of these two species. 



Apical part of third vein ot elytra within the black band raised on an 

 elevated ridge like that of the second and fourth, ridge ending rather 

 abruptly; no middle band in our specimens. - - terminaU Say; 



Apical part of third vein within the black band not on a distinctly elevated 

 ridge, the interval concave from the second to the fourth veins; middle 

 band present or wanting. reticulalum Fabr. 



Note 15, p. 244. — Lucanus placidus. This species may readily 

 be separated from dama as follows : 



Mandibles of male rounded, ecarinate; of female strongly carinate on the inner 

 side of the dorsal surface — especially over the subapical tooth— and usually 

 a lower carina along its outer margin; top of head of female anteriorly ru- 

 gosely punctate and very opaque; elytra and thorax shining, tlnma Tliunb. 



Mandibles of both sexes subtriangular in cross-section, their dorsal surface 

 concave, with a strong carina along its outer margin only; the inner edge 

 sharp, bidentate in the female and multidentate in the male; entire dorsal 

 surface of insect with dull luster. placidus Say. 



Note 16, p. 248. — Phaeepholls Candida. Dr. Horn described this 

 from two specimens as "nearly white." It has, in fact, a color 

 -.pattern similar to that of obscura, in pale brown and white. The 

 thorax has a dorsal darker stripe divided by a fine median white 

 line, and lateral and ventro-lateral darker stripes. The elytral 

 scaling is very pale golden-brown, with two vague stripes and the 



