MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 123 



]\[r. Anuiis wiik's me thai tlicic seem to ho two varieties of J), cdntrai^a. 

 Oiii' lit' them is a li^'lit rlR'stuut-lirowu willi tin- usual yellow liues, ami the other is more the color of 7^. minhira; 

 indeed, so mueh so that I thought they mii;ht jirovo to be that species, but the lines are precisely the same as the 

 other variety in width aud color. 



llahits. — I'^ggs, August 9; larvae, June, August, and September; tidults, June, July, October, 

 and November; localities, Missouri, District of Columbia, and New York. (Eiley.) 



Food phvit. — Oak (Miss ]\Iorton and ]Mr. Angus); "Oak ( (^liicrcus), chestnut ( ('fistoniti), hickory 

 (Ccirt/a)'" (Beutenmiiller); dak :ind witcli hazel (Uiley). 



GcogrupMcal distribution. — Massachusetts (Very, Mus. Comp. Zool.j; New York, New Jer.sey, 

 Pennsylvania, Wisconsin, Illinois (French); West Farms, N. Y'. (Angus); New Y'ork (Palm); 

 Newburg, N. Y'. (Miss ]\Iorton aud j\Irs. Fernald); P.uffalo, N. Y., and Chicago, III. (Bolter); 

 Eaeiue, Wis.; Chicago, 111. (Westcott); New Y'ork, southwestern Arkansas (Palui). 



Subfamily IV. — IniTHYUEiNiE. 



Head larger than in tlie (IhijiliisiiKC, but yet not so i)rominent as in the .succeeding 

 subfamilies; the front rather broad; clypeus (denuded) .scutellate; eyes hairy; anteuna' sliort, 

 -well pectinated to the tips; palpi large, long, ascending. Thorax usually with a dark median 

 crest. Fore wings sliort and broad, apex slightly upturned; outer edge a little bent; no 

 subcostal cell, the lirst three subcostal venules turned abruptly up on the costa; usually marked 

 by four cross lines, two of them forming a large V. Hind wings with, a rounded apex. Legs 

 very densely scaled. Abdomen in S long and slender, with a spreading dark tuft at the end. 



Egg. — Hemispherical, with meridional ribs, on the .surface ornamented with polygonal areas. 



Cocoon. — Thin and irregular in shape; spun between leaves. 



Larni. — l>ody rather long, slightly flattened, striped witli yellow and dark, and somewhat 

 hairy, usually with a pair of twin tubercles on first and eighth abdominal segments eacli. 

 Freshly hatched larva with the hairs all tapering, at first without abdominal tubercles or hairs. 



Pupa. — Unusually thick, full and blunt at the end; cremaster ending in a spine bearing two 

 broad upcurved flattened hooks, each bearing four to live long sette. 



Ichthyura niilnur. 

 (PI. XL, ligs. 1-4, veuatiou.) 



Mclalopha Hiibuer, Teutaiiien, p. 1 (uo descr.), ISllli (bvio?). 

 PlUliini Ochs., Sehmett. ICut., ii, p. 224, ISIU. 

 Ichthifura MiibD., Vei'z. Sehmett., ]). 1C2, ISKi. 

 MfUdiipha- Miibn. (in part) Verz. .Schmetf., p. ll!2. 181G. 

 Cloxlem Stephens. 111. Br. Eut. Haust., ii, p. 12, 1828. 

 Boisduval, Gon. et Ind. Jleth.. p. 89, 1840. 

 Duponchel, Cat. Moth. Lc<p. Eur., p. 95, 1844. 

 Herr.-SchaefV., Syst. Bearb. Scbmett. Eur., 1845. 

 Ichlhipira Walk., Cat. Lep. Het. Br. Mus., v, p. 1054, 1855, 

 Pack,, Proc, Ent. Soc. Phil,, iii, p. 351, 1864. 

 Grote, Check List N. Amer. Moths, p. 18, 1882. 

 .'imith. List Lep. Bor. Amer., p. 29, 1891. 

 Mehil„ii)ia Kirby' Syu. Cat. Het., i, p. 608, 1892. 



Neum. and Dyar, Can. Eut. xxxv, p. 121, May 1, 1894. 



Xeum. and Dyar, Trans, Amer, Ent, Soc, xxi, p, 190, June, 1894, 



Moth. — Head not prominent, the front rather broader than u.sual. .squarish: the clypeus 

 (d-^nuded) .scutellate in shape, raised in the middle and on the edges in front. Eyes hairy; 

 antenna' short, as long as the thorax, thickly scaled above; branches long, slowly shortening 

 toward the end, sparsely ciliated. In the S the branches short, but distinct. Maxillai distinct, 



'The use of this name by Kirby in place of Ichthyura seems scarcely justifiable, since in the Teutamen uo 

 description is given, and in the Verzeichuiss the name Melalopha' is the name of a stirps, under wliich are the groups 

 or coitus rijywra and Ichlhyura, the species under each being enumerated. Hiibner also does not in the Verzeichnis 

 spell the word Melalopha, the singular of Melalopha'; he simply uses it to designate a group or coitus or genus 

 {in the modern sense). To resurrect aud rehabilitate Melalopha- under the name Melalopha seems scarcely defensible 

 or advisable. 



