MEMOmS OF THE IfTATlOI^'AL ACADEJIY OF SCIENCES. 183 



Symmerista packardii (Morrisou). 

 (PI. IV, fig. 12.) 



Edema jMckardii Morr., Ann. Lyp. Nat. Hist., N. Y.. Vol. xi, p. 92, 1875. 



Si/mmfTiala }>uclcardii, Nenni. ;in(l Dy.ir, Trans. Amer. Eut. Soc, xxi. p. 187, .Tune, 1894; .lourn. N. Y. Ent. 

 Soc. ii, p. 114, Sept., 1894. 



Moth. — "Expanse of wiiig.s, 31 mm.; length of body, 16 mm. 



"The jirouud eolor of the anterior wings gray, sprinkled with black atoms and with white and 

 faint browni.sh and ocherous stains, the half line and the interior line absent; the orbicular spot 

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

 similar but simple and more distinct mark 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 exterior line is or.ly present in the central part of the wings; it is geminate, 

 dentate, and forms a particularly pi'ominent indentation opposite the reniform spot; a contrasting 

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

 distinct subtermiiial 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; the lines and discal dots are obsolete." (^lorrison). 



"Habitat, Waco, Tex., :\[arch 9;"' Texas (French). 



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



XoTE. — Edema producta Walk., Cat. Lep. Het. Br. Mus., v, p. 1031, 1885, and Edema fusceseens 

 Walk., loc. clt., p. 1031, are species of Ingura, a genus of Xoctuida^, according to Grote and Eobin- 

 son. Edema? pJad'taia Walk., Cat. Lep. Het. Br. 3Ius., xxxii, p. 427, 1805, "belongs to Parorgyia 

 I'ack."' (Grote and Robinson, Trans. Amer. Ent. Soc, July, 1808). 



Subfamily VI. — HETEROCAMPiNyii:. 



Miifli. — The head is tufted on the vertex, so as to have a triangular-shaped hollow on top of 

 the head. Tlie male antenna' are fdiforin in their distal fourth. Fore wings usually long and 

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

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



XfU-iY/.— Compressed or round, and, as the name of the typical genus suggests, varying 

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

 in Ihterocampa unkolov very long, and in Macrurocampa forming true stemapoda like those of the 

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

 first and eighth, abdominal segments. Larvie in stage I often with large antlers. 



Larva' usually spinning a slight, thin cocoou. 



Pupa. — Stout, full, with the spine of the cremaster well develoi>cd. 



.SYNOP.SIS OF THE GENERA. 



A. AntennsT of ^ almost or quite plumose nearly to the tip: palpi and legs long and slender; fore wings 



broad and short; body and wings pink. Larva liki' that of Schizura, witli a double bump on lirst and 

 eighth abdominal segments Hi/jXirpnx 



Like Hyparpax, but fore wings longer and narrower and more acute at apex; tip of ^ antenna' more 

 filameutal Euhnparpax 



Like Schizura, but the fore wings scalloped; palpi rather slenderer and shorter; fore wings long and 

 narrow. Larva with end of body raised; a large double tubercle on first and a decided hump on eighth 

 abdominal segment - XijJinodes 



B. End of i antenna} filiform: vertex tufted : palpi short and thick ; wings often long and narrow, outer edge 



more or less obII(iue. Hinil wings longer and more iJointed than in lleterocampa. 

 Larva; body somcwli.it lomjiressed. with two or three abdomin.al humps, often a V-shaped, silvery dorsal 



mark in Iront of tlie hist tubercle Schhura 



Difters slightly from lleterocampa in tlie venatiim, the subcostal cell being very long and narrow. Larva 



in last stage smooth, unarmed, noctuiform, very closely resembling that of H. maiileo Seirodonta 



Fore wings iiroduced toward the apex, outer edge iisurlly very oblique; a long subcostal cell: hind wings 



short and rounded; J anteume fihimental at the en'. Larva varying from being simply noctuiform to 



having long substemapodiform anal legs Bcieiucumjia 



Like Heterocainpa, but witli no subcostal cell. L.arva with the anal legs converted into true filameutal 



liroresses (Stemapoda) like those of C'erura iJacnirucimpa 



