MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 183 



Symmerista packardii i Monisou). 

 I PL IV, fig. 12.) 



F.dema pacl-ard'n Morr., Aim. Lye. Nat. Mist., N. Y., Vol. xi, i). 92, 1875. 



Sjiiniiiirisia jMclcardii, Neum. iiu<l Dyar, Traus. Ainer. Eut. .Soc. xxi. p. 187, .lime, LSill; .Touru. N. Y. Knt. 



•So.', ii. p. Ill, Si'pt., 1891. 



Moth. — ''Expanse oi" wiiig'.s, 31 mm.; Iciijith of body, IC mm. 



"The s;rouii(l color of the iuiterior wiii.u'.s '^y:\\. sprinkled with black atoms and with white and 

 faint brownish and orlierous stains, the half line and the interior line absent; the orbicular , spot 

 present as a geminate, blackish, upright, lunate mark, preceded by a. white stain; the reniform a 

 similar but simple and more distinct nmrk surrounded by a faint ocherous annulus; the median 

 shade passes between the spots; it is thickened below the reniform, forming a black spot, but is 

 afterward lost; the ctterior line is only present in the central part of the wings; it is geminate, 

 dentate, and forms a particularly prominent indentation opposite tlie reniform spot; a contrasting 

 apical white shade, below which appears a diffuse blackish shade clearly cut above, and the black 

 distinct subterminal line formed of obli(iue marks between the nervules; fringes long. 



"Posterior wings uniform dark fuscous, with lighter fringes. Beneath, gray, with numerous 

 black atoms; thy lines and discal dots are obsolete.'" (^lorrison). 



"Habitat, Waco, Tex., .^larcli 9;" Texas (French). 



Morrison's type is in the museum at Cambridge, Mass. 



^OTiu.— Edema pr(>d>ict<i Walk., Cat. Lep. Ilet. Br. ^Mus.. v, p. 1031, ISS.j, and Edcmx fiisccsccns 

 Walk., loc. cit., p. 1(131, are species of Iiigura, a genus of Noctuiche, according to (iiote and Eobin- 

 son. E(Uma? plaijiaid Walk.. Cat. Lep. Het. Br. Mus., xxxii, p. 427, 18G5, "belongs to I'aror(jyia 

 I'ack.'' (Grote and Robinson, Trans. Amer. Ent. Soc, .Inly, 18()8). 



Subfamily VI.— IIjctehocampin^. 



.¥o//(.— The head is tufted on the vertex, so as to have a triangular-shaped hollow on toji of 

 the head. The male aiiteim;e are tiliform in their distal fourth. Fore wings usually long aud 

 narrow (in Hyparpax, broad and short), with the outer edge very oblique, rather more so than 

 usual; a subcostal cell usually present, and long and narrow. 



Xr(rc«.— (_\unpressed or rcuind, aud, as the name of the typical genus suggests, varying 

 greatly in .shape, luarkings. and coloration; either noctuiform, with moderately long legs, becoming 

 in Hi'teioc((iiq)(( niiirolor very long, and in ^Maciurocampa forming true steinapoda like those of the 

 Cerurime; body either smooth or armed with high uutant tubercles on first, fifth, and eighth, or 

 first and eighth, abdominal segments. Larva^ in stage I often with large autlers. 



Larvie usually spinning a slight, thin cocoon. 



Pupa. — Stout, full, with the .spine of the cremaster well develoyied. 



SYNOPSIS OK THE GEN'E1!.\. 



A. AiitonniP of J almost or quite plumose nearly to the tii); palpi anil legs long and slender; fore wings 



Inoad and short; body aud wiugs piuk. Larva like that of Schizura, with a double hump on lirst and 

 eighth alidominal segments Buixapiix 



Like Hypari>ax, hut fore wiugs louger and narrower and more acute at apex: tip of. tJ autenu.-e more 

 filameutal - Euhijparpax 



Like Schizura, hut tlie fore wings scalloped; palpi rather slenderer and shorter: fore wiugs long and 

 narrow. L.arva with end of body raised; a large double tubercle on tirst and a decided hump on eighth 

 abdominal segment XijUnodes 



B. End of t? antenme tiliform; vertex tufted; palpi short and thick ; wiugs often loug and narrow, outer edge 



more or less oblii|ue. Hind wiugs longer and more pointed than in Heterocampa. 

 Larva; body somewhat comiiressed, with two or three abdominal humps, often a V-shaped, silvery ilorsal 



mark in front of the last tubercle Schi:ura 



Differs slightly from Heterocampa in the venation, th(: subcostal cell being very long .and narrow. Larva 



in last stage smooth, un.irmed. noctuiform, very closely resembling that of //. maiileo Seirodonta 



Fore wings produced toward the apex, outer edge usually very oljlirjue; a long subcostal cell: hind wings 



short and rounded; J antenua- filamental at the end. Larva varying from being simply uoctiiiforui to 



having long substema])odiform anal legs Jletcnictimjia 



Like Heterocampa, lint with no subcostal cell. Larva with the anal legs couverted into true tihuneutal 



processes (Stemapodai like those of Cernra .Vacnn-ocampa 



