AMERICAN LEPIDOPTERA. 



39 



Xyliiia bailey i Giote. 



1877, Grt., Cau. Ent., ix, 86, Lithophane. 



1893, Smith, Bull. 44, U. S. Nat. Mus., 229, Xylina. ' 



Head, thorax and primaries a very pale, greenish gray. Head with the frontal 

 superposed tufts distiu(!t, and with a frontal blackish line. Collar with a brown 

 or black line below tip, variably evident and sometimes obsolete. Patagise tipped 

 and laterally margined with deep umber brown. Thoracic vestiture flattened 

 hair and scales; anterior crest hardly elevated and not divided. Abdomen 

 mouse-gray, with a carmine tinge and without dorsal tufts. Primaries with the 

 maculation clearly written, and in part contrasting. A black basal streak curved 

 toward the costa at the end of the geminate, broken basal line, inferiorly and 

 outwardly difl-use, darkening this region so that the costal base seems paler by 

 contrast. T. a. line geminate, broken, brown, not well defined, in course a little 

 outwardly oblique and outcurved in the interspaces. T. p. line geminate on the 

 costa, thence outer portion lost, inner hinulate or crenulate, brown, broken and 

 partly lost, outcurved over cell, abruptly drawn in to the inferior margin of reni- 

 form, then even to the inner margin. S. t. line concolorous, a little irregular, 

 preceded bv a series of contiguous brown or black spots, which may become se].a- 

 rated and partly lost, those in the submedian interspace and opposite the cell 

 remaining constant. A series of brown or blackish interspaceal, terminal 

 lunules. Median shade obvious in all specimens and prominent in most, brown 

 or blackish, l)road, diffuse, oblique from costa between the ordinary spots, dark- 

 ening the lower part of reniform. then a little bent and parallel with t. p. line. 

 Claviform broad, varying in length, concolorous, incompletely defined by black 

 scales Orbicular oblong, oblique, of good size, open to the costa, else black 

 edged, concolorous or a little paler. Reniform large, almost as broad as long, 

 ringed with black, centered with reddish. Secondaries smoky, with a carmine 

 tinge, fringes paler tipped. Beneath gray, with a reddish tint, powdery ; prima- 

 ries with disc black, secondaries with a broken exterior line, all wings with a 

 somewhat obscure discal spot. 



Expands 35-40 mm. = 1.40-1.60 inches. 



Hab.-l^ew Hampshire; Northern New York; Northern Penn- 

 .sylvania ; probably all of the New England States and Canada. 



Four males and seven females are under observation. The varia- 

 tion is largely in the relative prominence of the median shade, 

 which is usually the most conspicuous feature of the ornamenta- 

 tion. The blackish spots preceding the s. t. line also range from 

 a continuous shading to broken patches. Occasional specimens 

 beco.ne powdery, obscuring the greenish tinge of the ground. The 

 male antennae are not much thicker nor much more lengthdy cdi- 

 ated than the female. 



Xylina querquera Grote. 



1874, Grt., 6th Kept. Peab. Ac. Sci., 34, Lithophane. 

 1874^ Grt.', Bull. Buff. Soc. Nat. Sci., II, pi. i, f. 5, Lithophane. 

 I882', Grt.', 111. Essay, 57. pi. 2, f. 21, Lithophane. 

 1893, Smith, Bull. 44, U. S. Nat. Mus., 229, Xylina. 

 Head, thorax and primaries a rich creamy gray, with a faintly green or bluish 



.^^,,TT AUGUST, 1900. 



TRANS. AM. ENT. SOC, XXVII. 



