27 



bright, while the dark ninifziiis are cither entirely wantintr or else represented by a dusky 

 shade niaririiicd uccasionaily within by a lew dull browni^ih dots. The spot on the forewings 

 is distinct, but paler and usually centered with a small silvery eye. Tliat on the liind wiii:;s 

 is much UKirc distinct than al ove, beitij;- composed of a bri;;lit si. very spot in the centre de- 

 fined by a dark brown line wliicii is in turn encircled with dull oranj^e. Immediately 

 above and a little towards the outer edjie is a much sm iller spot of the same character ; there 

 is :dso a reddish dot on the anterior ediic, about the middle ol'tlie win;;. The antennte are 

 pink, with tlie knobs at their tips of a darker shade; the body is dark above; paler ut the 

 sides and underneath. 



The insect appears first on tlic winjr about the middle of May, becoming more plentiful 

 towards the latter end of the month, but the time of its ariate-t abundance is later in the 

 season, after the appearance of the second brood, which is during the latter part of July and 

 throughout August. In the second volume of the " Entomologi>t," p. 8, Mr. Bethune re- 

 marks as follows : "On the .3rd of August, a lovely, briuht, waim morning, after an exces- 

 sively wot night, I drove about ten miles along country roads ; every few yards there was a 

 patch of mud, the effects of tlio heavy rain, and at ev^ry patch of mud there were from half 

 a dozen to twenty specimens of t'o/ius /ihi/odiir, at least one, I should tliink for every yard of 

 distance I travelled. I must then have seen, at a very moderate computation, about ten 

 thousand specimens of this butterfly." 



The caterpillar of the Clouded Sulphur feeds on the cultivated pea, on clover, on the 

 Blue Lupin, L/ipimis j)eieni>is, and no doulit on many other plants Iielonging to the order 

 Lc<imniiHiw. The egg, which is a beautiful object, is about one twenty third of an inch in 

 length, t.ipering at caeh end, witli twelve or fourteen raised longitudinal ribs, with smaller 

 cross lines in the concave spaces between them. Its colour when first deposited is of a pale 

 lemon yellow, which changes in three or four days to a pale red, then gradually to a bright 

 red, and from that to dark brown just before the time of hatchin''. The duration of the ess 

 Btage IS about seven days. 



The young caterpillar just hatched is one-twelfth of an inch long and of a dull yellow- 

 ish brown colour, but when a little older it changes to a dark green, ^^■hell full grown it is 

 about an injh long, with a dark i:ieen head and body, tlic latter with a yellowish white stripe 

 on each side close to the under surface, with an irregular streak of bright red running through 

 its lower jiortion. The b dy also has a downy look occasioned by its being thickly clothed 

 with very minute pale baiis. 



The chrysalis is ;!bout seven-tenths of an inch long, attached at its base, and girt across 

 the middle with a silken thread. Its colour is {)ale green with a yellowish tinge, with a pur- 

 plish reil line on each side of the head, darker lines d<iwn the middle both in front and behind, 

 and with a yellowish stripe along the sides of the liinder segments. 



During the heat of summer tiie chrysalis state usually lasts about ten days. A day or 

 so before the butterfly escapes the chrysalis becomes darker and semi-transparent, the mark- 

 ings on the wings showing plaiidy liirough the enclosing membrane. 



The WuiTE-LiNED Mornino Sphinx {Deilephila Uncaia, Fabr.) 



The white-lined morning 

 sphinx is a tolerably common 

 insect throughout Ontario. It 

 is seen on the wing generally 

 about twilight or later, although 

 it lias been met with occassion- 

 ally ic the day time. In its 

 flight it much resembles the 

 humming bird, hovering over 

 flowers into which it inserts its 

 long and slender tongue in 

 seui ch of t he nectar there stored, 

 wliich constitutes its food. lo 

 common wit ii many other sphinx 

 moths its structure is robust 



Fig 27. 



