170 Twenty-sixth Heport on tme State Museum. 



by the extended acute cellular tooth of the anterior median line, 

 which in this species surpasses the same tooth in intermedia and its 

 allies, and nearly equals that of chainomillm. Nerves and nervules 

 clothed with black scales, and faintly relieved by white ones; the 

 latter bordered with white scales as they approach the margin, which 

 are continued on the fringe, extending nearly one-half across it. In 

 the interspace (cell 4), below the disco-central nervure (vein 5), a 

 black line running from the outer margin of the reniform, half-way 

 to the margin, whence its continuation may be traced, with a lens, 

 beneath the interspaceal white streak; in cells 5 and 6 are indis- 

 tinct black streaks beneath the white streaks, not reaching the mar- 

 gin ; in cell No. 3, a short black streak extending from outer third of 

 interspaceal streak to the margin ; in cell No. 2 a corresponding 

 black streak but shorter and broader ; in cell No. 1 b, a black line, 

 having a white streak before and behind it, extends from the mar- 

 ginal termination of vein 2, obliquely to the median fold, increas- 

 ing in breadth before reaching it, where it runs into a black line 

 resting on the fold, which is broadest at the point of contact and 

 loses itself just before reaching the posterior median band ; this oblique 

 line is more prominent that in intermedia^ lucifuga and umbratica^ 

 but less conspicuous than mpostera^ asteroides and asteris.^ Terminal 

 margin with an obsolete black line, interrupted by the nervules. 



In lucifuga W.-V. (one $ , one ? ), an arc of the superior and another of the infe- 

 rior portions of the margin are visible, leaving the outline of the spot not defined. 



In intermedia (four 6 's and four $ 's), close scrutiny with a lens reveals, in the 

 more perfect specimens, a faint, fine, curved, black line above the median nervure, 

 representing the inferior margin of the spot. 



In umhratica Linn, (two 5 's and four ? 's), two dots, of which the outer one is 

 sometimes elongated, mark the lower corners of the spot, Tisible in all the speci- 

 mens. In the most distinctly marked female, two oblique lines below the subcostal, 

 running the one outwardly and the other inwardly, indicate the superior portion of 

 the spot. 



In chamomillm W.-V. (one 5 and one ? ), the spot is reduced to two black dots, 

 one at each end of a pale elongate spot beneath the subcostal. 



In convexipennis Gr.-Rob. (one $ and two 2 's), the spot is obsolete, having its 

 position indicated only by two black dots beneath the subcostal ; a third dot, and 

 occasionally a fourth outside of these, pertain to the reniform. 



In lichnitides Ramb., UcUnitis of Guenee (two $ 's), are two black dots above the 

 median, and over these a semi-elliptical pale spot bordered with brown, deeper a^ 

 the ends, lying between the subcostal and the cellular fold. 



In scrophularim'W.-Y. (three c^ 's), the same features appear as in lichnitides^ but 

 not quite so well defined. 



* The engraver has omitted these interspaceal black streaks from the figures, and 

 failed to represent correctly the associated white ones. , 



