18 JOHN B. SMITH. 



throughout. Secondaries smoky, the fringes paler or even whitish. Head with 

 superimposed tufts obvious, forming — in good examples — two shelves, between 

 which the antennae arise. A deep brown line crosses the middle of the front and 

 below this there is a brownish shade. Sides of the palpi blackish. A narrow 

 black line just below the tip of the collar, sometimes only extending around the 

 base of the divided crest. Patagiae with a blackish line at the base of the prima- 

 ries. Abdomen with loose hair at base and little scale tufts on the dorsum, of 

 which that on the third segment is a little prominent in good specimens. A black 

 streak at base, extending to the basal half line and a little diffuse inferiorly. 

 Basal line geminate, brown, very oblique, broken, terminating in a blackish 

 blotch 01) the basal streak. T. a. Hue geminate, brown or black, broken, very 

 irregular, the long tooth in the submedian interspace in some cases actually 

 reaching the t. p. line so that the median shade crosses the loop instead of be- 

 tween the two lines. T. p. lines with a long outcurve over cell, drawn in below 

 reniform, inner portion slender, denticulate, the outer a sei-ies of venular dots. 

 S. t. line of the ground color, irregularly sinuate, preceded by a broken, rusty 

 brown shading, best marked opposite the cell and anal angle, followed by black- 

 ish shadings at the same points. These shadings are usually prominent, and 

 sometimes fill a large part of the terminal space. A series of small, black, termi- 

 nal marks. Fringes interlined with dark brown. The median shade is distinct 

 on the costa, brown or smoky, extends obliquely and darkens the space between 

 the ordinary spots— then is broken, a little diffuse, and runs parallel close to the 

 t. p. line, becoming blackish at the point where the two lines almost touch, and 

 thus connecting them. The orbicular is moderate in size, black ringed, oval, 

 oblique, the centre usually a little dusky. Reniform of good size, broad, a little 

 oblique, upper portion a little larger, black ringed, centre a little dusky. Sec- 

 ondaries with veins a little darker and the discal spot of under side visible above. 

 Beneath, primaries smoky to a pale, powdery terminal space; secondaries with 

 an extra median smoky line. All wings with a large discal spot. 

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



H(ib.—Ci\nii(\ii; New England States; Northern New York; 

 Wayne Co., Pennsylvania ; Fort INIadison, Iowa. 



Sixteen males and one female show little vai-iation. The shade 

 of the ground color differs a little, as does the relative distinctness 

 of the markings; but on the whole the specimens are very much 

 alike. The antennjie of the male are ciliated, and there is a series 

 of raised black scales along the inner side toward base. The 

 thoracic vestiture is mostly flattened hair. 



Xyliiia betliiiiiei Grote and Eobinson. 



1868, G. and R., Trans. Am. Ent. Soc, i, 354, pi. 7, f. 56, Xylina. 



1869, Bethune, Can. Ent., i, 86, Xylina. 



1874, Grt., 6th Rept. Peab. Ac. Sci., 33, Litho2)hnne. 

 Ground color of head, thorax and primaries creamy white, shaded with luteous 

 and (wwdered with black atoms. Abdomen and secondaries smoky, with a yel- 

 lowish tinge, often fading to gray, fringes white or nearly so. Head with super- 

 imposed tufts; front with a brown transverse line below the middle. Collar 

 with a narrow brown or blackish line below the tip, but this is often obsolete. 



