76 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



ADELOCEPH^L^ HEILIOBRODXII (Harvey). 



(PI. XIX, flg. 5 ^'.) 



Anisota heilighrodtii Harvey, Can. Ent. IX, p. 110. June, 1877. 



Sphingkampa heiligbrodtii Kirby, Syn. Cat. Lep. Het., I, p. 740. 1892. — NEUMCEGEy and Dy.\R. Journ. N. Y. 



Ent. Son. II, p. 149. Dec, 1894. 

 Syssphinx heiligbrodtii Dy.\r, Proc. Ent, Soc. Wash., IV, p. 428. May 13, 1901. 



Imago. — 1 S . Antennse S bipectinate, filiform on the outer third, with fine seta3 iastead of 

 ve.?tigial pectination.'^ or teeth. Head and prothorax ))lackish; front of tiie head rather broader 

 than usual. Thorax gray behind, .slashed with blackish. 



Fore wings rather short and broad compared with the other species; costa straighter than in 

 A. hicolor, but not so much so as in ^4. hlsecta, apex somewhat rounded, and outer edge moderately 

 convex, nearly as long as the inner edge, which is more convex than in ^1. hisecta. In hue 

 uniformly iron-gray or hoary brown, including the fringe, with no distinct lines, but a minute 

 white discal dot. with sometimes traces of a second or twin dot. 



Hind wings short and much rounded, not reaching so far back as in A. hicoloi\ more as in 

 A. hisectd^ not reaching much over one-half way bej'oncl the middle of the abdomen, which is 

 rather long. In hue dull dark pink, gray-brown on the costal and on the outer edge: inner edge 

 pink; fringe gray-brown; wings dusky pink at base. Discal spot large, round (2 to 2i mm. in 

 diameter). 



Under side of fore wings dusky in the middle, dull pinkish along the veins: an indistinct 

 extradiscal brown line; costa gra}'. No discal .spot. 



Hind wings gray, with a slight pinkish hue, paler toward and along the outer edge. A large 

 round black discal spot. A faint diffuse extradiscal line disappearing toward the costa and inner 

 edge. Abdomen gray, with a faint ruddy tint. 



Expanse of the fore wings, S , 55 mm. ; length of one fore wing, S , 28 mm. ; })readth of one 

 fore wing, $ . 14 mm.; length of a hind wing, S , 21 mm.; breadth of a hind wing, S , 15 mm. 



This species may be recognized by the fore wings being unusually rounded, by the obtuse 

 apex, the hind wings being also rounded. For the venation see PI. XXXVIII, figs. 2, 2a. 

 Another distinctive mark is the dark gray or hoar}' brown fore wings, with the absence of dis- 

 tinct lines. The hind wings are dull pinkish, with a large black discal spot above and beneath. 



Geographical distribution. — Bastrop County, Tex. (Heiligbrodt fide Meske); New Mexico 

 (Strecker). So far as known this moth is confined to central Texas and the southern portion of 

 New Mexico and Arizona. 



Arizona (Neumcegen ?). It has not yet been detected in Mexico or any other part of 

 Central America. (See Map III.) 



^D1^:L0CE:PH JlI^^ ^LBOLINEA-TA G-rote and Robinson. 



(PI. XIX tig. 1 9.) 



AdelocephaJa albolineata G rote and Robinson, Proc. Ent. Soc. Phil., VI, p. 7. pi. i, tig. 7 $. 1866. 

 Adelocephala raspa Boisdi'val, Annales Soc. Ent. Belgique, XV, p. 93, PI. Ill, fig. 1, 1872. 

 Adelocephahi albolineata Drcce, Biologia Centr. Amer. Lep. Het., I, p. 171. June, 1886. 



Sphingicainpa albolineata KiRBY, Syn. Cat. Lep. Het., I, p. 740. 1892. — Necmcege.v and Dy.\r, Jourii. X. Y. Ent. 

 Soc. II, p. 150. Dec, 1894. 



Imago. — 1 ^' , 1 9 . Antenna^ ^ (wanting). Head of moderate size, wide in front, narrowing 

 to a point at the labrum. Maxilhe (in 9 ) comparatively well developed, very slender, about a.s 

 long as the front is broad across the middle. 



Head, thorax, and fore wings lemon-yellow-ocher, being brighter ocherous than usual. Edges 

 of the tegulfe white, forming two conspicuous diverging white lines, edged within with pale, 

 pearly gray, the hairs on the sides of the thorax at the base of the wings being of the same 

 gray hue. 



Fore wings rather broad; costa straight, becoming arched towai-d apex, which is olituse; 

 outer edge full and convex, inner angle well i-ounded. Hind wings broad, ape.x not much pro- 



