l.w 



The Ad nil. 



'I'fic piipcf by l'Vcii;ili| ;iln'ii,(|y riiciitioricd, i.s jui illiiHtnilfd inoiio- 

 frr.'ipli of our Nor'lJi Amciic'in ( 'idinhuhr, with !i l\('v to llic Hpccics. 'I'liul, 

 l)y l'<'lt, ill tlic I'.iillct ill of the ('oiiicll I'lxpctiinciit. Stjitioii, illiiHlniicH 

 iJic vviti^s iuid ;M'iiit;il ::l riid iircs of I, lie locjiJ spcrics, jiiid ^-ivcH t,ill)l('H for 

 idciitific'ilioii of {\\(- ;i(liilt:-,. StiidicH rii;id<' ;it I his ollicc iiidiculc that 

 thl'f'c closely ;illicd lorins listed !is Species hy l'Viii;dd, Inlcohll iis, zc'rlluH, 

 ;i,iid (■(ili(/iii,()H(lln.s, jire not, sp(;(;ifi(tji,lly disl.iiict. 'I'hc form ;iiii| color 

 pjittcrn of the wiii^s ;ire the sjinic iti ;ill. ('(ilit/inoscllus is d;i,rl< fuscous 

 on hoth p;iiis of vvin;.';s, with hrown in;irl<iiiji;s; zcrllns is jiHliy ^niy and 

 lif!;ht, brown or ytdlow-brown ; lulcolcllus is ycllowJHli or whit-isli, its v;tricl,y 

 iihi; Hlif!;htJy jishy on the outer p;iit of the fore win^, tJu; fore wiri;z;H 

 soniet inics becoinili;j, lie;uly white, with \'ery f.'iint ni;ifi<iiif<;s. 'I'hr' two 

 (•\l,retncH, (•(dit/inosclliL'^ ;i,nd iidcohll ii^, were ori^in.'dly dcHcribcil in n, 

 paper by (llcrncns.* A moth rcarcil by ns from cor'ii crnnibid lju'v;i' in 

 bSS-1 wiis of the inlermedinte type, ;iihI on it ;ind other : pecimens wiiH 

 baH(!d l^'crnnid's d('S(!ripl,ion of ^rr////,.s, published in llie l''ointeenl h iJeport, 

 of lhisolIic(i 0''''K'' '•'"'J. '■""' "'■'^" ''I I'l'' "< ':iii;idi;in I'jitomolo/jisi ," Vol. 

 XV'II. (pii;.':'' •^)r>). In the lollowin;.' snnnner :dl tiuee forms, together 

 witli ;dl possible inter^o'.'uljitions, were <(nile common .-it the snnie lime 

 ;i,t, electric li'dds ne;ir the I'liiversity, A liir^e niunlx'r were sent, l,o 

 Professor l''ein;di| , who ni;i<|e an ;ittempt ;it sepjir'jil ion of the l,fire<' 

 forms, but wrote: " N'ou v\ill see tli;it these v;iry iind run into c-udi 

 othei' so l,h;it, I ;im in doubt, wlietlier they ;ire niiy tiling- more th;in 

 v.arieties, l,riinorpfiic forms, or something of th;it kind." 



I'ell, did not ilist.in^iiJHfi zc'rilus in New York, lie puts the other |,w() 

 in sep;ir;ite ^Moups, but, iui <!Xiimin;i,t ion of his key shows I, lint, the dil'fer- 

 ence betweiMi these I, wo species n;uro\\s down t,o t,h;it, of ^'round color 

 .'done, lie (if^iires the m;de j'('nit;di;i ol both, but siiys Hint structurally 

 they nre most, closely relnted, nnd cnii be sepnrnted only on the form of 

 the scnphium, the lorm of the other or[!;n,iis beiiij/; nlmost, identicnl. In 

 his two (ifiures, the unlike dotted nrens nboiit the lower limb of t he 

 uncus merely represent, membinne. I hn ve exnmined, in our collection, 

 mnles of nil these forms ns deteriiiiiie(| by I'ernnld, but coiiM mnke out, 

 no especini dilTcreiices in the proportions of Um; H('apliiiim, the striictiircH 

 beiii^- in nil very close to those li^'ured tiy l''e|(, for fiis iidrolcllvs. 



It, would therehire seem best to I rent, these three ns vnrielies of si 

 Hiiif:;l(; species, iinusiinlly vnrinble in <'round color but, not, especinlly ho 

 in witi^ pat,l,ern nor in t.he j;eniln,l st,i-ii(;l,iires, under the iin,me hdrolcliitH — 

 \\h'. firHl, f!;iven by ('lemeiis. 



M'K.c, IM.ilii, A-'iul. H.'i., IHr,(), |,|). '.^o;), 2()1. 



