rHE mOGEXETIC 1-AAY 



17!) 



longitudinal stripino; is ortoet:ivi> a.s a protoi'tion in tlio onso of yonno; 

 catovpillai-s.svipposino-, that is, that Miov live in oi- on the i^rass (Fio;. 1 16). 

 Ijot \is tvusidor the ontOi^eny of those diti'event forn\s of niarkiu£js, 

 beoinnini;- with the eye-spot.s. It appears that these develop fitnu 

 a s\ilvdofs;\l stripe, which appeai-s in the yonnj; eaterpillar in the 

 seoiM\d stai^v of its life, and fwrni it, in the coni-se of the further 

 developtnettt. two |\ai\"s of lar>;-e eye-spot* aiv formed. Even in the 



Fus 4 ^lv}^l\•^t<^^^. FiilUs:t\>\vi> o.^torpillar of tho KK phaut Hawk-motJi, 



I'wt-.v.iiwjM ejiy«<»-, in its ■torrifyinj: attita<1o,' 



yotino- eatorpiUav, seaively one eentimetiv in leno-th (Fi>;-. 116), it can 

 lx> ol^serveii that the tine, white stth-dorsjU line tjtkes a slii:;ht etirve 

 upwj\i\is on the fonrth and tift.h soij-niems (C). and on t]\e lower edge 

 of these etirves a blaek line is laid down (/)). This is then ctintinued 

 to the upper side [K\. juid o-neloses the pieee of the sulvdorsjil stripe 

 (/"and (rV and thus theiv arises a wltite-centiXKl, blaok-fnvmed spot 

 which only ivi^niivs to g^\^w and to ditletvntiate a Waokish shadow- 



Fi«», S ^^e}waU^^. 0,-»i< rpni.rs of tJjo Bncitliom H.i\vk-mc\tli, TirSfphUa 

 Ti^aphal^ -1, Sui^v IIL i^\ St.igo Y. r, snmUar fixers, 



<vntiv, the pupil ((j), to give the impression of a Lai-ge eye. This 

 ixvui-* as the caterpillar goes on growing, jmd after tlie foui-th moult 

 -or ecdysis the eyes have already some etieet, as the animal is six centi- 

 metiv^; in length, but they becimie even moiv perfivt in the tifth and 

 last si.age. During this development of the eye-s}x^t the stilv-dorsal 

 stripe dis.ap}x\ai^^ completely fivfln the gro^uer pai-t of the eaterpillar, 

 ^vrsisting only ^m the tii-si thive segments (V'ig. 116, B-F). 



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