438 HETEROCERA. 
4. Platyptilia cardui Riley. 
+carduidactylus Riley; tcardui Z., Riley. 
Pterophorus carduidactylus Riley Ann. Rp. Ins. Mo. 1180-1 tf. 98, Pf. 2° 13-14 (1869) ’. Platyptilus 
carduidactylus Z. Stett. Ent. Ztg. 82 179 (1871)’. Platyptilia cardui Z. Verh. ZB. Ges. 
Wien 23:1873 Abh. 318-9 sp. 2 (1873)*. Platyptilus cardui Wism. Pter. Cal—Or. pp. xv, 
7-8, 9-10, 35, 49 Pf.1°6 (1880)‘. Platyptilia cardui Riley US. Dp. Intr. Bull. 6 (Ind. Rp. 
Ins. Mo.) 83-4 (1881) °. Platyptilus cardui Kict. Bull. Buff. Soc. Nat. Se. 4 47 (1882) ° ; 
H. Edw. Bull. US. Nat. Mus. 35 136 (1889)". Platyptilia carduidactyla Froid. Ann. Rp. 
Mass. Agr. Coll. 35 105, 108-9 (=Spcl. Bull. Hatch. Exp-Stn. pp. 23, 26-7) Pf.2°1-2, 
%-8-11 (1898)*. Platyptilia cardui Wism. Ent. Mo. Mag. 84 192-8 (1898) °. Platyptilia 
carduidactyla Frnld. Bull. US. Nat. Mus. 52 443 sp. 4941 (1902)*°; Meyr. Gn. Ins. Wytsm. 
100 (Lp-Het. Pter.) 11 sp. 45 (1910) *: Lp. Cat. Junk 17 13 (1918) 2 
Hab. AMERICA, N-C. Canada—Vanoovver I.: Esquimalt, 1852 (J. J. Walker). 
United States -2—New York **: Buffalo, © Cirsium lanceolatum’, spp.°, VI-VIIL*— 
PEnnsyLvan1a®—District or Couvmpia®: Washington *—Wisconsin: 1883 (H. &. 
Morrison) —Iu.1no1s *—Missour1****: © Cirsium lanceolatum 35-8 Vex, VIL? 
Conorapo: LARIMER: Loveland, VII-VIII. 1891 (W. G. Smith): custer: Willow 
Creek, VII. 1880 (Z. D. A. Cockerell)—Tuxas (J. Boll)***—Arizona: 1883 (1. K. 
Morrison)—Cauirornia*®: DEL Norte: Siskiyou Mts, 18. VI. 1872 (Wism.). 
Central America—Gvatemara (“ Cand.”—Zell. Coll.)—Costa Rica: cartaco: Volcan de 
Trazu, 6000-7000 ft. (H. Rogers). 
Riley [Ind. Rp. Ins. Mo. 84 (1881)] adopted “cardui” in lieu of “ carduidactylus,” 
remarking that Zeller “very properly, because of the incongruous compound, drops 
the conventional ending dactylus which I used in the original description.” 
2. Platyptilia brevirostris, sp. n. 
Antennae whitish ochreous, dusted with dark ferruginous toward the base. Palpi slender, porrect, reaching 
very slightly beyond the head, the median joint slightly thickened ; whitish ochreous, shaded with dark 
ferruginous at the sides. Head and Thorax whitish ochreous, much shaded with brownish ferruginous. 
Forewings with the lobes set. somewhat widely apart, the fissure much rounded at the base; the apical 
lobe slightly uncate, its lower angle not strongly produced, the tornal lobe wider, also uncate, the 
tornus well-pronounced but rounded; whitish ochreous, smeared with brownish ferruginous and 
thickly sprinkled with dark brownish ferruginous scales, the costal third tending to be paler; no dark 
spot precedes the fissure, but a dark brown costal shade lies above and scarcely beyond its base, closely 
succeeded by a smaller costal spot of the same colour ; the outer half of each lobe is deeply shaded with 
dark umber-brown, a single pale transverse line crossing the apical lobe before its lower angle, and two 
slender pale transverse lines cutting the dark shade on the tornal lobe, but not reaching the margins ; 
the first, about the middle of the lobe, is very faint, the second, at a little distance from the termen 
being more visible; cilia very pale whitish ochreous, a curved dark line from the apex to its lower angle 
increases the uncate appearance of the apical lobe, its dorsal cilia much spotted and shaded with dark 
umber-brown, almost fuscous ; the upper margin of the tornal lobe is strongly shaded with the same 
colour, except at its extremities, a similar dark curved basal shade running through its terminal and 
tornal cilia, the dorsal cilia of the wing being dotted with dark spatulate scales, Zyp. al. 20-25 mm. 
Hindwings dark brown, with scarcely paler brown cilia; the cilia on the hind lobe thickly studded with 
dark spatulate scales throughout its length—these scales somewhat longer along the middle than toward 
