MEMOIRS OF THE jS'ATIOiTAL ACADEMY OF SCIEIiTCES. 
263 
Cerura Sclirank.’ 
(PI. XLVII, figs. 5, 6, 6rt, 66, venation. PI. XLYIII, figs. 7, 14, 15, palpus.) 
‘Ceritraj in part, Schrank, Fauna Boica, ii (2), p. 155, 1802. 
Cerura Latreille, Genera Crust, ct Insect, iv, p. 219, 1809. 
^‘THcranura Latreille.” - ( ?) 
Harpyia Ocliseuheimer, Schm. Eur. Bd., ii, p. 19, 1810. 
Andria Jliilui., Teiitainen., p. 1, 1810 ^ 
Harpyia and llarpyias lliibnor, Verzeiclmiss Scliinett., p. 148, 1816. 
Pania Dahnaii, Anal. Ent., p. 92, 1823. 
Dicrauura Griftitli, Cuvier’s An. Kingdom, xv, p. 612, 1832. 
Bui&d., Gen. et Jnd. M(5th., p. 84, 1840. 
l)uj»oi\chel, Cat. Lt-jt., p. 87, 1844. 
Harpyia Staiidiuger, Cat. Lcp. Eur., p. 72, 1871. 
Cerura Packard, Proc. Eiit. Soc. Phil., iii, p. 375, 1864. 
Grote, Xew Check List N. Ainer. Moths, p. 29, 1882. 
Smith, IdstLep. Bor. Anier., p. 31, 1891. 
Kirhy, Syn. Cat. Le]>. Ilet., i, pp. 585, 930, 1892. 
Nenm. and Dyar, Trans. Ainer. Ent. Soc., xxi, p. 188, 1894. 
2[oth . — <? and 9 . Mead unusually large^ front broad, subtriaiigular, mucli broader in S tlian 
"9 , pilose. AiiteiiUiii sliort, about the leugth of tlie thorax, densely scaled above, very broadly 
l^ectinated, the branche.s becoming much shorter at the tips; in 9 the branches are sliort but 
distinct. Eyes naked. jMaxilhe rudimentary, separated, extending a little ivay beyond the scales 
of the front. Palpi unusually short and small, thinly scaled, and coucealed by the hairy front. 
Scales of the thorax and jiatagia either (dose and short or loosely pilose. Fore wings rather long 
and narrow, less than half as broad as long; costa straight, suddenly rounded at the apex; outer 
edge entire, very oblique; internal angle rounded. 
Venation: Subcostal cell minute; third subcostal venule short; the apical or third subcostal 
intersi)ace broad, triangular; sixth subcostal (UU) iiulependeut, arising in the middle of the 
discal space. 
Hind wings a little produced toward the apex, reaching halfway to the tip of the abdomen 
costa slightly convex; outer edge oblique, the upper part straight, thence rounded; internal angle 
rounded. Vein II short, one-half as long as in Macrurocampa. Posterior discal vein in both 
wings much curved. 
Legs rather slender, with long sparse hairs; hind tibiie with two minute spines. Abdomeu 
somewhat llatteued, tip broad and pilose. 
Coloration; All the species white or whitish ash, with wavy ti’ansverse bauds on the fore 
wings or abroad dark median baud, and a large oblique subapical dark blotcli, with discal dots 
or discal rings. 
The species are readily recognized by the large broad head, small feeble palpi, the broadly 
pectinated 8 autennre, those of the 9 also pectinated; the. narrow wings, the white and pale gray 
ground color, and the peculiar markings of the fore wings. 
Egg, — Flattened, hemispherical. 
Larva , — Head large, broad; prothoracic segment wider than the head, with a pair of lateral 
tubercles; anal legs fdamental, forming stemapoda, with an eversible dagellum. Freshly hatched 
larva Avitli long stemapoda, slightly longer than in tlie last stage; the lateral prothoracic horns 
longer than in the mature cateri)illar; body entirely brown above. 
* Sclirank in Fauna Boica, 1802, i>roi>09e(l Ceruia for ierrifien (jridna Knock), ebudaj ami furcnla. In 1810 
OcUseuheimer created Ilarpyia, under wliicli ho first mentions viinihiy which should he reserved for this genus. In 
1810 lllibuer placed fayi in Terasioii (which preoccupies Stephen’s Stauropus), and terrijica into Ho]»liti8 (together 
with IJ. meone Cr.), and retained vinuUt together with erminea Esper for Ochseiiheimer’s genus Harjiyia, which is a 
good genus, and then directly created Harpyias for farcala^ hifida, and licuspis, and an American species, for which 
it would he most proper to retain Schrank's first given name, Cerura, and drop entirely the rather objectionable 
name of Harpyias. 
2 In Latreille’s Gen. Crust, et Insect., 1809, the name Cerura aiipears; nor is Dicrauura mentioned by liim in his 
Considdratious g(^n(5rales (1810), nor in his Families iiaturelles dii Kegiio Animal (1825). It is not mentioned in 
Agassiz’s Nomenclator, nor in Scudder’s Nomeuclator Zoologicus. It is possibly a manuscript name adoi>ted by 
Boisduval. 
