—136— 



S. sordidellus, Zinck. 



This species has not hitherto been observed since Zincken first de- 

 scribed it in 1 82 1 in the 4th volume of Germar's Magazine der Ento- 

 mologie, page 247. 



Neither of Clemens' species could be referred to it nor was it known 

 to Robinson, but I have just received a series from Prof. Forbes, taken 

 in IlHnois and two from Mr. Hulst, taken in Florida. There are thirty- 

 one males and two females in the series from Prof. Forbes. Zincken's 

 description was of a male and he says that "the female probably has 

 pointed wings,'' which proves to be true. I have drawn up the follow- 

 ing description from the series before me. 



Expanse of wings, 25 to 33 mm. in the males ; 32 to 43 mm. in the temales. 



Head, palpi, thorax and fore wings, ashy gray, but tinged with ochreous in some 

 specimens. The hind wings and abdomen are of the same color as the fore wings 

 but perhaps a shade lighter and without any ochreous tinge. The fringes are much 

 lighter, especially those of the hind wings. There is terminal row of nine black or 

 dark brown spots which rest on the ends of the veins and a similar row of dark spots 

 on the hind wings, all of which are visible on the underside. There is also a dark 

 brown spot resting on the lower outer angle of the cell, and fresh examples show a 

 sprinkling of minute brown scales over the upper surface of the fore wings. In addi- 

 tion to the above markings, some ot the specimens have a spot of the same color on 

 the middle of the base of the wing, one on the upper outer angle of the cell ; two on 

 the subcostal vein rather nearer to each other than to the base or end of the cell ; 

 three on the fold, one near the base, one on the outer third and one rather within the 

 middle of the fold ; two on vein i, the first on the middle and the second half way 

 between this and the anal angle. There is also an arcuate row of eight spots resting 

 on the veins beyond the end of the cell, the first one restmg on the end of vein 9, on 

 the costa a little before th5 apex, the last on vein 2, a little beyond its origin where 

 there is another spot. All these spots are of the same color but a little larger than 

 the terminal points. 



The underside of the wings and body as well as the legs is a shade lighter than 

 above, and the whole surface of the insect has a silky lu-ter. 



S. unipunctellus, Robs. Ann. Ly. N. H., N. Y., Vo . IX, 1870. 



Robinson's description is a follows : 

 "Palpi, head and thorax fuscous. Anterior wings uniform dark fuscous with a 

 large prominent black dot at the end of the cell on the middle. Posterior wings and 

 fringes pure white. Abdomen and anal tuft white or very pale fuscous. Expanse, 

 20 mm. Habitat, Texas. The uniform dark color and prominent black discal dot 

 readily distinguish this species." 



Robinson's three types which I now have before me, are females in 

 rather poor condition. I have two females and several males from 

 Florida in somewhat better condition than the types but have nothing 

 to add to the above description. 



S. tripunctellus, Robs. 



"Palpi, head and thorax, whitish cinereous, the former white beneath. Anterior 

 wings whiii^h cinereous, finely powdered with pale fuscous scales. On the told at 



