07 ■ • 



straigliter costa of ("ore wings, and riillicr more ()I)Ii(iiic nulcr (mIi^c and Ihe 

 longer liind wings. 



'J'lic imisl alicrranl species is CI. Sdhi/iidrin, wliicli, in (he peetinaled 

 anteiuia' and venation, forms a subgenus, I)ul which I do not tlnnk shonid lie 

 separated ac'iierit'all v I'roin (1 jfolata. I'otli of tliese two arctic species dilli'r 

 irnni the olhers, even (1. ('(Vs'iula, in the iiairy head and liody. 



SlHiriiini'ia auiiXiKil'nita of (Inenee is very closely allied to d' . jio/dla in 

 strnctnrc! as well as in its ))ecnliar style of markings, and tin- genus is evi- 

 dentlv a s\'nonyin'ol the present one. 



Liura. — The l)ody is of e(pial thickness iVom (he head (o (he end. 



Head nnudi I'ounded, no( so wide as (he hody. Supra-anal pla(e scnnetimes 



i-ounded jxisteriorly. I'^eeds on sixcies of \ acciuium, spinning a slight cecoon 



among (he leaves of its l()od-pIaut. It liybeniates, pupating late in tin; 



spring. 



SynojKis of the Species. 



A. S an(enn<x3 simple : 



Lar^iT tluiii the othiT.spfcios. Fore wings with coiivix eo.sta ; a (loiilih', wnvv, pxlni- 

 (liscal line, beut below the costa, aucl a more ilistiiict, whili.sh, Hiibiiiarj;inal 

 line. Olive-gray, with mimeron.s, .scattered, golden scnles (;. casialti. 



Costa .straighter than in 6'. cas'iata. Steel whitish-grayish, with about twelve wavy 



lines; hind wings llesh-colored G. mufjnoliala. 



Oehreous-gray, with nunierons, transverse, dark lines; liiedian baiiil narrow, pale, 



with a daiU discal dot ; hind wings whitish Ci. impVtmla. 



Ciranite-gray, with a distinet median band, rows of dark points, and scattered yellow 



scales : hind wings gray, a little dusky on the margin G. iioluUi, 



B. (? anteiinte pectinated : 



Undersized. Uniform sable-brown; fore wings with a s'iuglc, median, dusky band. 



Fringe sable-brown (/. Saliiiiiayia. 



Large size. Yellowish -gray, with broadly-pectinrted antenna', median band, and 



submargiual, waved, whitish line. Fringe yellowish, checkered with dark. .. G. iihocutoria. 



GuAuccPTEUYX CM2.«iATA Iliiljuer. Plate 8, tig. IG. 



" Geomcira caviala Borkh., Kur. .Schm., v, H.jl, 11!'.), 17J4.'' 



" Den. et 8chift"., Syst. Verz. Schm., i, 44S, 1775." 

 "Lang., Verz., liJ, I7&.i." 

 " Hiibn., Schm. Eiir., 27;'), 1790." 

 GJaucnptirys civniatn Hiibn., Verz , 332, 1818. 

 Luiiiiiia nvsiala Treits., Sclnu. Fur., vi, part 2, t?9, IHUH. 



Dup., Lep. France, viii (\ ), 3!),-', pi. I'.KI. iig. I', 18;!0 



(Inen., I'hal., ii.271, 1S.57. 



Walk., List Lep. Br. Mns,, xxiv, 1173, l.-tii 



40 S ;nid 40 9. — Body and winys dull smoky gniy, with a decitled olivti- 

 ceous tiuiije, dusted with golden scales. I'^rout whiiish, with dusky scales; 

 base of the antenn;v whitish, beyond iniuiitely anntdtited wi(li white; palpi 



