THE STATE ENTOMOLCKUST. 



143 



As an illustrution of the wonderful power of resisting extreme cold, 

 which this caterpillar possesses, 1 will quote the following experience com- 

 municated to nie by Mr. Lintner. He says: "I had placed one for 

 hybernation in a small keg among leaves, which I inserted in the ground. 

 During my absence from home, either the thawing of the snow or the wind 

 had overturned the keg, and driven away the leaves. On my return I 

 found the laiwa remaining, but stiffly frozen, with its head encased in ice 

 and fastened to the ground. As an experiment I detached a piece of the 

 ground with the larva, and placed it in a warm room. On the thawing of 

 the larva and the release of its head, it was restored to activity. " 



EcpANt'HKRiA scKiuoxiA, StoU. —Lffiroo — ( I kuow of but oiic gODtl di'SCiiption of this laiva, and 

 That by Mr. AVm. Saunders, in Proc. Ent. Soc. , Phil. , 11, p. 29; but as that is not as luU as it might 

 be, I give ths foUowing ) : Average length 2>i inches. Head black, polished, brownish at sides and 

 below; epistoma, antenn;!} and palpi nioreor less distinctly gLissy white, the joints of antennae marked 

 ■with light brown, cervical shield brown-black Body above black, inclining tj brown laterally; 

 bright reldish-brown at sutures, showing in strong contrast, especially between joints 3—10 when 

 the larva is curlid up, but scarcly visible when straightened and contracted. Verrucose warts 

 arranged as foUijWs: On joint 1, two each side of cervical shieM; on jts. .3 :ind 3, a transverse row of 

 S; on jts. 4—11 inclusive 12, tliL' 4 on dorsum trapezoidal, the two anterior ones approaching nearest; 

 onjt. 12 a transverse I'ow of (). Venter dull purplish-brown, the legs of the same c jlor the legless 

 joints with 4 small verruo.se warts. Hairs barbed, stifl", spiaellke and j t black 



THK I.SABELI;A TIGKR MOTK—Arctia Isabella, Smith. 



( Lepidojil -VM. An-diidie.) 



The larva of this insect (Fig. 65, 

 a) is very common with us and is 

 ftimiliarly known by the name of the 

 Hedgehog Caterpillar. It is thickly 

 (• )vered with stiif black hairs on 

 each end and with reddish hairs on 

 the middle of the body. These hairs 

 are pretty evenly and closely shorn 

 so as to give the animal a velvety 

 look; and as they have a certain 

 elasticity, and the caterjjillar curls up 

 at the slightest touch, it generally 

 manages to slip away when taken 

 into the hand. It feeds on Plantain, 

 Clover, Dandelion, grasses, and 

 a variety of other plants, and after 

 passing the winter in some sheltered spot, rolled up like a hedge-hog, it 

 comes out in the spring to feed upon the first herbaceous vegetation, and 

 finall}^ spins its cocoon ( Fig. 65, h represents one cut open, giving a view of 

 the chrysalis ) and goes through its transformations. The cocoon is com- 

 posed principally of the caterpillar's hairs (which are likewise barbed) in- 

 terwoven with coarse silk. The chrysalis is brown with tufts of very short 

 golden bristles, -'n li -ating the positions of the larval warts, and with a tuft 



