ME:M0IRS of the ^^ATIOXxVL academy of sciences. 
.179 
We retain the name Si/mmerista because the first of the two species meutioiied under it by 
Hiibiier is his S. alhicosta; the other species is 8. politia (Cramer). On examining' Cramer’s figure 
of though evidently poorly executed, we find that it difiers generically from alhifrom and 
alhicosta. 3Ir. Druce, in Biologia Centr. Americana, Ueterocera, i, p.230, adopts Symmerista for 
poUfia Iliibner, and retains Edema for albifrons. This does noc seem to us to be Justifiable, and 
-vve think another name should be given to the genus of Avhich politia Cram, is the type. IMoreoA^er, 
Driice’s Symmerista pinna., from Panama (fig. 9, tab. 25), is represented as of the shape and with 
the marking of a Da*sylophia. Edema Mandela Druce loc. cit. (pi. 25, fig. 3), from Mexico, is allied 
to 8. albifrons, and is a true Symmerista, as we have restricted the genus. 
Walker’s Edema producta, troni St. Johns Bluff, in eastern Florida, is, as Mr. A. G-. Butler 
kindly writes me, “ a Noctuid of the genus Inyura., and identical with i. abrostoloides,'^'^ In 
Druce’s Ileterocera, i, p. 235, it is still retained under Edema. 
Symmerista albifrons (Abbot and Smith). 
(PI. IV, ligs. 13, alhicosta; 14, albifrons.) 
Fhalcuna albifrons Abbot and Smith, Lep. Ins. Georgia, p. 159, Tab. LXXX, 1797, fig. 1. 
Edema albifrons Walk., Cat. Het. Lep. Br. Mub., v, p. 1028, 1855. 
Morris, Synopsis Lep. N. Ainer., p. 242, 1862. 
Pack., l*roc. Ent. Soc. Phil., iii, p. 358, 1864. 
Symmerista albicosia HUhn., Verz. Schmett., p. 248; Noct., p. 440, 1816; Eur, Schmett. Noct., fig. 440, 1804? 
Herr.-Sch. Syst. Bearh. Schmett. Eur., ii, fig. 131, 1845. 
Staiidiugcr, Cat. Lep. Eur., p. 75, note, 1871. 
Groto, New Check List N. Auier. Moths, p. 19, 1882. 
Smith, List Lop. Bor. Amer., p. 30, 1891. 
Kirby, Syn. Cat. Lep. Het., i, p. 572, 1892. 
Symmerista albifrons Neum. and Dyar, Trans. Amer. Ent. Soc., xxi, p. 187, Jane, 1894; Jouni. N. Y. Ent. Soc^ 
ii, p. 114, Sept., 3894. 
Larva. 
(PI. XXII, figs. 1-4.) 
Abbot and Smithy Lep. Ins. Georgia, p. 1.59, Tab. LXXX, 1797. (Larva, pupa, and moth figured.) 
Emmons, Nat. Hist. N. York, v, p. 242, PI. XXXVII. (Larva and pupa figured.) 
Harris, Ent. Corresp., p. 304, 1869. 
French, Trans. Hept. Agr. 111., xviii, Appendix, p. 120, 1880. 
Beutcnmiiller, Ent. Amer., vi, ]). 75, April, 1890. (Egg, all six larval stages, and cocoon described.) 
Dyar, Psyche, v, p. 421, Nov.-Dcc., 1X90. 
Packard, Proc. Best. Soc. Nat. Hist., xxiv, p. 525, 1890. (Stages i-V described.) 
Moth . — Six S and two $. Cinci*eons; head and prothorax tawny and whitisli in front; paler 
in 9. Palpi brown on the sides. On the crest above, a brown line; behind is a median whitish 
spot, with tawny scales, behind which are some brown scales; the rest of the thorax is dark ash. 
Fore wings with two dark lines situated within the middle of the wing; the first basal one is light, 
witli two scallops, one on the costa margined within with dark; the outer one is situated within 
the middle of the wing, and is a double dark line curved suddenly outward in the discal space; 
behind, it is dislocated ou the subcubital fold; it ends on the beginning of the white portion of 
the costa, which is oue-toothed Just beyond the brown, pale-edged discal spot. From this tooth^ 
an obsolete third line runs parallel to the second to beyond the middle of the internal edge. The 
white costal margin is contracted upon the middle of the fourth subcostal venule, and thence runs 
directly to tlie apex. The region below the white portion of the costa may be dark ash, tinged 
more or less with fuscous. The siibinarginal region is a little lighter, inclosing a submarginal 
series of inwardly oblique or black linear lunate spots. Hind wings smoky white. Beneath, the 
wings are uniformly whitish; the subinargiual rowof spots appear through. (In the underside of 
the hind wings is an obscure fuscous median line. Ou the first segment of the abdomen is a dark, 
round spot. Expanse of wings, S , 39-45 imn.; length of body, <5 , 19-18 mm. 
> My descrijition is based on the sharp-toothed form, or alhicosta Hiihii. (Eur. Schmett., fig. 440) ; the round- toothed 
form is Ah])ot and Sm^th^s albifrons. Whether these variations also extend to the larva remains to be seen. 
