Entomological Contributions. 169 



lines black, relieved in front by pale gray, better defined and more 

 acutely dentate than in intermedia; the anterior line five-toothed, 

 obscurely geminate, the interior line more distinctly defined above 

 the inferior portions of the subcellular teeth, the two subdorsal teeth 

 obscure, the cellular tooth slightly overlapping the orbicular spot, 

 the medial one bisected by the slender black basilar line, and the 

 internal one quite acute ; the posterior transverse line traceable only 

 below the cell, except as obscurely continued in a whitish zigzag 

 shade across the nervules, and marked in its inception by a short, 

 oblique, black line, followed by a white dot resting on the costa just 

 beyond the bifurcation of veins 6 and 7. Reniform spot indi- 

 cated only in its lower portion by a black line proceeding (in the 

 female) from near the origin of the first median nervule (vein 2), 

 curving over veins 3 and 4 near their bifurcation, and termi- 

 nating in the black streak in cell No. 4. Orbicular spot visible in its 

 lower portion as a short, slightly curved black line above the median 

 nervure, at the point of projection of vein 2, its outline doubtfully 

 traceable with a lens, contracted from its normal quadrate form, as 

 seen in C. poster a Guen.,- to that of a figure 8, being almost bisected 



*lTiC.postera{Q. $ and $ example), the " orbicular " spot is quadrate, resting above 

 and below on the subcostal and median nervures, angularly concave interiorly and 

 less angularly convex posteriorly; the interior and posterior margins are blacky 

 interrupted just above their middle, appearing as four short lines ; interior of the 

 spot gray, with two elongate quadrangular markings, of which one is above and the 

 other below the cellular fold. In this species the " orbicular " is better defined than 

 in any other of the species under my observation. 



In asterokles (three i 's and three ? 's), in the strongest marked male, the spot is 

 not defined in outline, but is represented by three black dots beneath the subcostal 

 and three above the median nervure ; four additional black dots, in range with these, 

 pertaining to the reniform (making two rows of five spots each), give to the discal 

 region the punctuated appearance observed in the European species next noticed. 

 In other examples, the middle one of the three lower spots is wanting, and in others 

 the middle of the upper ones also ; this more frequently in the female. 



In C. ahgynthii Linn., of Europe (one i ), the orbicular assumes a very interesting 

 form, from which, together with corresponding characters in the reniform, it has 

 received the name of imncWjera {Berl. Mag., Ill, 100), and la pointilUe by Engramelle. 

 It is composed of six black subquadrate spots, of which three lie in a row beneath 

 the subcostal and three above the median nervure, the middle spot in each row sur- 

 rounded witli white scales which sometimes extend over a part or all of one or both 

 of the contiguous spots. 



In asteriA W.-V. (three <l 's, two ? 's), the female has the spot four-punctated and 

 of the normal form, with traces of the interior transverse lines. In the male, the 

 marginal lines form the four oblique sides of a hexagon, with a trace of the superior 

 transverse interior line only. 



