SEASDMAI, DIMnltl'IIISM. 1027 



erly U-Imigft tiirtlii'r .-ioutli iliati Niw Ku^'liiiiil. Init Iuih \)rvi\ taken near iti 

 soutluTii l)onU'r(t. 



The l)utterfly is of itiiinll i>i/A\ tlic inulc prox iiloil with n hnriir ilimiil 

 strenk. The wiii^s an- tawny, ahuvo ihiNlnMl l.>ii::ritiiihiiiillv. ami cHin'cially 

 near the oiitt-r Itonli-r, witii ihirk hrown, iho t'l-niaK- rto much inon; lieavily 

 than tlie ninlc ns to torni n connected border to the wings, nn<l to give it 

 rather tl>e appearance of a dark ItufterHy dashed and npotted with tawny- 

 Beneatli thi>y are paU'r, witii two ilistant rows ot" dark (hits on the outer 

 lialt' ot" tiie wings, indii-ating tiie honhTs of an irrcgidnr, transverHo l>and. 



The insect is nt least doul)h' liroodeil, hut iiow it winters is (luite uncer- 

 tain. The hirvn feeds on Panicuui. 



EXCl'JiSUS LXVI.—SEASONAL DIMORI'HLSM. 



Tluiu >|>aik of life, that wavcnt wln^s of r.jIiI! 

 Tlu>ii >i>iigli"s« wiuuUtim' mill tlii' sonnfui liirils, 

 Willi iiatun-'-* ■siiTdH ill tliy (Intu iinrolli'ij 

 Tbrouijb iiDrneoiis ciplicr. iia'"! tlie rcucb of words, 



Yi't iji'nr to rvorv riiitJ 



III )ilni\ pursuit Im>kuiI(^<I< 

 Livill^; iiis iiiispoilnl ilays nii>l Mowers and tloolis and herds. 

 Tboii wiiiirod liloMsoiiiI llliornlc.l lliiiifj! 

 Wlial si'crt'l til' liiiid* tln'i' to otlicr llowcis 

 Sllll Ill-Ill williiii tlio i;ai<toii's fosti'rlii^'? 

 Will tliry. too, soar with tUe coiupli'ted hours, 



Takr lli;;lit ami lie like tbec 



Iinnoralily fri-e, 

 HoMrlii!; at will o'er tbiir parental liowcrs? 

 Or is thy lustre drawn from henvenlv hues, 

 A suiiiptuou- driftiiii; frau'iin-iit of iLe >ky 

 CaU'.'ht w hen the sunset its last i;lain-e iinliues 

 With sudden splendor; and the treetops high 



Grasp that swift lilazoiiry. 



Then lend those tints to thee — 

 On thee to float a few short hours, and die? 

 Birds have their nests; tliev rear their e;u;er young 

 And Ilit on errands all tin' livelong day; 

 Eai'b lieldniouse keeps the homestead whence It sprung; 

 But thou art nature's fieeman;- free to stray 



I'nfetlereil ihroui;h the wood, 



Seekini; thine airv food 

 The sweetness spieeif on every blossomed spray. 

 The kcanieii one wide baiu^uet s|ircads for tbec 

 O daintiest reveller of the jovous earth! 

 One drop of honey !;ives satiety, 

 A seeonil draiii,'bt' would ilrun'thcc past all mirth. 



Thy feast noorify shows, 



Thy calm eyes never elosc, 

 Thou siilicrest sprite to which the sun gives birth I 

 And yet the soul of man upon thy wings 

 Forever soars in aspirallon ; thou 

 His emblem of the new career that springs 

 When death's arrest bills all his spirit bow. 



He seeks his hope in thee 



Of immortality. 

 SynitKil of life I me with such faith endow, 



T. W. HiooiNsoN,— Orfe to a Butterlfj/. 



Is an earlv excursus in thi-i work, the general stihject of dimorphism 

 waa discu83e<l, without reference to that form of it which is termed 

 seasonal, in which the phenomenon only appears on comparing individ- 

 uals of different broods of the same year. It may. however, he <|ue8- 



