276 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Cerura scitiscripta Wiilktr. 



(PI. VL figs. 21-23 ; PI. VII, fig. 31 ; XLIX, fi-. .S.) 



Cerura sciiiacripta AValker, Cat. Lei>. Brit. Mas., xxxii, p. 408, 1865. 



Cerura muUhcrijita Riley, Tr!iu.s. .St. Louis Acad. 8ci., iii, p. 241, 1S75 (iijjure in text rejiroduced uu PI. 



XLIX, fig. 3). 

 Cerura Candida Liutn., Ent. Contr.. iv, p. 87 (30th Rep. X. Y. State Mus., p. 199), ''1877," June, 1878. 

 Cerura scitiscripta Grote, New Check List N. Amer. Moths, p. 20, 1882. 

 Cerura viultiscripta Grote, New Check List N. Amer. Moths, p. 20, 1882. 

 Cerura scitiscripta Smith, List Lep. Bor. Amer., p. 31, 1891. 

 Cerura multiscripta Smith, List Lep. Bor. Amer., p. 31, 1891. 

 Cerura scitiscripta Kirby, Syn. Cat. Lep. Het., i, p. .588, 1892. 

 Cerura multiscripta Kirbjf, Syn. Cat. Lep. Het.. i, p. 588, 1892. 

 Cerura scitiscripta Dyar, Can. Ent., xxiii, p. 87, April, 1891. 



Neum. and Dyar, Trans. Amer. Ent. Soc., xxi, p. 189, 1894, Journ. N. Y. Ent. Soc, ii, p. 114, 

 1894. 



Larva. 



(PI. XXXVI, tigs. 5, 5a, 6, 7. C. multiscripta.) 



Tepper, Bull. Brooklyn Ent. Soc, i, p. 4, May, 1878. 



Dyar, Psyche, v, p. 393, Oct., 1890. (Egg and larva in all stages.) 



miey, Trans. St. Louis Acad. Sci., iii, p. 241, 1875. (Egg described; larva confounded with that t>t' horcalis.) 



While multiscripta is generally regarded as distinct from scitiscripta, I think that if Professor 

 Eiley had had examples of scifiscripta before him he would have hesitated about describing the 

 inelauotio specimens, as I believe them to be, under a different name. 



C. Candida only appears to differ from scitiscripta in tlie tliorax being white and in liaving no 

 'dots on the hind wings (two S collected in Florida by Mrs. Slosson). 



Motli. — Five £. Head white above; sides, below, and breast black. Thorax: collar white, 

 edged with black beliind, and two rows of spots more or less connected (in var. catidida, 

 according to Lintner, the thorax is entirely white). 



Fore wings without the u.sual broad median black band; suow-white, crossed by four 

 scalloped, more or less perfect, lines within, and by four scalloped lines without the ring-like discal 

 nnirk. The outer mark or submarginal line heavier on the costal and inner edge. Second and 

 third lines forming a more or less perfect series of ringlets and sometimes [multiscripta) filled in 

 with scattered fine black scales, giving the l)and thus formed a dusky hue. Fringe white, with 

 more or less intravenular dots. 



Hind wings vaiying from white to uniformly dusky or smoky, with distinct heavy black dots 

 (one from Florida is without any dots, this being var. Candida Lintner). Underside snow-white, 

 ■with heavy black costal s^jots, the outer one forming a submarginal line extending to the median 

 vein, both wings dark smoky with the darker diffuse lines on each wing, and a dift'use discal mark. 



PLxpanse of wings, 3 28-35 mm.: length of body, 3 13-19 mm. I add Riley's description of 

 his G. multiscripta. 



" Color white, with brown-black and black markings. Primaries white, slightly silvery, crossed 

 with eight irregulai'ly undulate and angulate narrow black lines, as follows: 1. basal, obsolete on 

 costal and inner borders and preceded bj' a black spot close to thorax; '2, reaching to both borders, 

 but broken; 3, 4, and 5, proximate, and irregularly undulating almost straight across the basal 

 fourth of wing, 3 aiul 4 thickened and confluent toward costa and generally forming a circuhir 

 spot between subcostal and cubital veins; G, 7, and 8, obliquing more toward apex, limulate and 

 more widely separated between veins 2, 3, and 4, more approximate and retreating toward base 

 between veins 1 and 2 and 4 and 6, and generally so close along vein 2 as to coalesce; broader, 

 more intense, irregular marks occupy the spaces toward apex and anal angle, left by the retreating 

 of line 8, thus leaving a regularly defined terminal space. Veins more or less dusted with black 

 and cons])icuously marked in terminal space. A distinct rov/ of terminal spots between the veins. 

 'The median space between lines 5 aud 6 is about as wide as the terminal, and has a small discal 



