86 STUDIES IN NORTH AMERICAN MEMRRACID/E 



known to me this is the only one fitting his description reason- 

 ably well. I doubt if his species can be placed more definitely 

 without a study of his types. 



8. Cyrtolobus discoidalis Emmons. 



Allied to van but rather larger and differently marked. 

 Color yellowish testaceous punctured with darker. Metopidium 

 with a broad arcuated vitta on either side, which is continued 

 down over the face exterior to the ocelli. Dorsum moderately 

 elevated, about as in van. Anterior oblique line a little sin- 

 uated, meeting in an acute angle somewhat behind the humeri; 

 dorsal median spot spread along the upper carinate edge, evan- 

 escent below. The posterior vitta nearly obsolete. The ante- 

 rior oblique vitta is followed by a darker or even fuscous shade 

 which may fill in the angle before the median spot. Elytra 

 nearly hyaline, slightly enfumed, apex fuscous, base punctured 

 as usual. Face rather even, strongly punctured ; ocelli prom- 

 inent; clypeus and lorse fused, their basal suture slender but 

 distinct; clypeus broad, its apex well produced, strongly in- 

 curved and obtusely angled. 



Of this species I have seen three examples. One taken on 

 Mt. Balsam, N. C, by Mr. W. J. Palmer of Buffalo; one from 

 Ithaca, N. Y. , in the Cornell University collection, and one 

 from Sparta, N. J., in the collection of Mr. W. T. Davis. This 

 species is sufficiently distinct and I believe I have rightly de- 

 termined it although in Emmons' figure the anterior oblique 

 band meets in too obtuse an angle. 



9. Cyrtolobus cinctus n. sp. 



Size and form of van nearly, the crest a little more elevated. Female: 

 Color pale yellowish green in the dried specimen. Anterior oblique vitta 

 represented by a slender clear-cut black line which meets the dorsal carina 

 well forward above the humeri, and at about the middle curves suddenly 

 downward to join the margin at a point a little behind the post humeral 

 sinus; surface behind this black line paler or testaceous, crossed by two very 

 obscure broad whitish transverse vittse, the anterior of which curves for- 

 ward somewhat. Elytra hyaline with the apex scarcely darker. Tibiae 

 slightly embrowned. Clypeus a little produced and rounded at apex. 

 Length 6 mm. 



Male: Almost black, becoming more piceous brown posteriorly; ante- 

 rior oblique vitta slender, white, curved as in the female but obsolete ante- 

 riorly; posterior vitta whitish, broken and obscure. Elytra a little infuse- 



