278 NORTH AMERICAN TRYPETINA. 



crossline ; the short stigmatical cell, which is somewhat yellowish, 

 is divided in two halves by a narrow dark brown line and is 

 marked at both ends by a ray; in the marginal cell, besides a ray 

 at the end of the first longitudinal vein, which is incompletely 

 formed and margined with brown on its outer side only, there are 

 three yellow rays, margined with brown and running towards the 

 anterior margin; the first two are attenuated towards the margin 

 and much narrower, the third is much broader; the five following 

 rays are again so narrow, that only the first among them pre- 

 serves a trace of the yellow coloring of its inner side; they 

 gradually grow longer and end: the first at the tip of the second 

 longitudinal vein, the next two between this and the third vein, 

 the fourth exactly upon the tip of the third, the last a little before 

 the tip of the fourth vein ; the hyaline intervals between the last 

 of these rays show upon their middle a faded cloud. The rays 

 upon the latter portion of the posterior margin gradually grow 

 shorter, are rather broad and altogether brown, but not as dark 

 as the narrow rays of the anterior margin or the dark borders of 

 the broader rays which follow upon the latter; they are five in 

 number, or six if the last of them, which is very short, is counted 

 for one ; the second and third are less completely separated from 

 each other than the rest, and the fifth, which includes the tip of 

 the fifth vein, is the broadest of all. "Upon the middle of the 

 wing the following hyaline drops are visible : 1. Between the 

 second and third longitudinal veins a very small one (sometimes 

 a second one beyond it) below the end of the auxiliary vein and a 

 second, somewhat larger one below the second ray, which runs, in 

 the marginal cell, towards the anterior margin; 2. Between the 

 third and fourth veins, nearer to the latter, there are three drops 

 in a row; the middle one is nearly opposite the middle of the 

 discal cell, the first one beyond the anterior end of this cell, and 

 the last one at an equal distance before its posterior end ; 3. In 

 the second posterior cell only a single drop almost in its inner 

 corner ; 4. In the discal cell four or five, two of which upon its 

 longitudinal axis (one near the anterior, the other near the 

 posterior end) and three inconstant ones on the posterior margin 

 of the cell (the first sometimes wanting, the second being the 

 largest) ; sometimes a very small drop in the posterior corner of 

 the discal cell is added to them. All these drops are encircled 

 with dark brown or almost black, in such a manner, that this 



