ATTACKING THE LEAVES. 



177 



the body is flattened, the sides abruptly inclined, and ^triped 

 with faint, oblique, yellowish lines. 



When mature, it forms a short, blunt, brown chrysalis, 

 which in ten or twelve days produces 

 the butterfly. 



This measures, when its wings are 

 expanded, an inch or more across (see 

 Fig. 187). It is of a plain, dark- 

 brown color above, but beneath the 

 wings are prettily ornamented with 

 wavy white streaks. There is also a 

 row cf orange-colored, crescent-shaped 

 spots on the hinder portion of the pos- 

 terior wings, and a large blue spot near 

 their hind angle. Each of the hind 

 wings has two thread-like tails, one longer than the other. 



No. 91. — The Plum-tree Catocala. 



Catocala uUronia Hubn. 



About the middle of June, when jarring the plum-trees for 

 curculios, a very curious-looking, leech-like caterpillar often 

 drops on the sheet spread beneath. It is flattened, with its 

 body thick in the middle and tapering towards each end, and 

 of a grayish-bi'own color. When full grown, it closely resem- 

 bles Fig. 188 ; it is a little more than an inch and a half long, 



Fio. 188. 



dull gravisii brown above, with two or four small reddish 

 tubercles on each segment of the body, all cncii-cled by a slight 

 ring of black at their base. On the upper part of the ninth 

 segment there is a stout, fleshy horn, about one-twelfth of an 

 inch long, pointed, and similar in color to the body, but with 



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