196 



Lithopliaiie Thaxteri n. s. 



$ . — Of a delicate lilac gray, the reniform shaded with ruddy. The costa at 

 base, above the distinct basal dash, somewhat Avhitish. The transverse lines are 

 tolerably distinct. The t. a. line is well removed outwardly, pale with a nar- 

 row external black edging, waved, distinctly notched on vein 1, its upper por- 

 tion fused with the edging of the large orbicular. In its course the line is 

 more outwardly oblique than in confm'mis, and further removed from the 

 base of the wing. There is no claviform spot (evident in conformis), the black 

 submedian dash running from the t. a. line itself across the median space to 

 the t. p. line. The posterior half of the median space is darker than the ba- 

 sal portion limited by the median shade, much as in conformis. The reniform 

 is smaller than in covformis, differently shaped, being excavated inwardly as 

 well as outwardly, distinctly black edged inferiorly. The t. p. line is more 

 distinct than in conformis, indicated by pale denticulations, of which one is 

 quite noticeable where the line receives the submedian dash. The subter- 

 minal line is shaded with blackish outwardly, quite distinct and with a deter- 

 minate inflection opposite the cell, not nearly so apparent in conformis. An 

 oblique blackish shade above the internal angle below which the wing is 

 whitish. The s. t. line in conformis is brown and more or less dotted, not 

 shaded so distinctly with whitish anteriorly, our species approaching Zinckenii 

 in the contrast of shading. Hind wings fuscous with pale fringes. Beneath 

 rosy fuscous with obliterate faded traces of the usual markings. Thorax like 

 the fore wings, dark at the sides. Abdomen carinated, with very minute dor- 

 sal tuftings, fuscous, rosy at the sides. 



Ex23anse, 40 m. m. May 10th, 1874. 



Our species seems in a measure intermediate between conformis 

 and Zinchenii. I cannot consider it the American representative 

 of either species, since it differs quite markedly on close examina- 

 tion, while on the whole, perhaps, nearer to conformis. Thaxteri 

 resembles Zinchenii in the sharpness of the lines, the tone is, how- 

 ever, less cold and the suffusion of the reniform reminds us of 

 cojiformis. The dorsal abdominal tufts are very inconspicuous, but 

 I think are present; it would thus agree with conformis, which 

 Lederer places in his first group. In my arrangement it would fell 

 into the subgenus Graptolitlia, my first group including only socia 

 and semibrunnea among the European species.* 



Dicopis Thaxterianus n. s. 



^ . — The tibial claw is present, and the testaceous antennae are bipectinate, 

 somewhat less heavily so than in D. muralis. The colors are mainly tliose of 



* I have received also from Mr. Thaxter a new Dicojns from the same locality, which I hero 

 describe. 



