154 INSECTS INJURIOUS TO THE PEAR. 



The under side is similar to the upper; feet whitish green, 

 semi-transparent. 



About the middle of June this larva seeks some suitable 

 hiding-place^ such as a crevice in the bark of the tree, or 

 other shelter, and there makes and fastens firmly a small, 

 })rovvnish, papery-looking cocoon, in which it undergoes its 

 transformations and remains until the following spring, when 

 the })erfect fly appears. 



The fly bears a general resemblance to that of the pear-tree 

 slug, but is smaller. 



The remedies applicable to the pear-tree slug would serve 

 equally well in this instance ; but these insects are seldom 

 found in sufficient abundance to require a remedy. 



No. 77.— The Goldsmith-beetle. 



Cotalpa lanigera (Linn.). 



This is, without doubt, one of the most beautiful of all our 

 leaf-eating beetles. It is nearly an inch in length (see Fig. 

 161), of a broad, oval form, with the wing-cases of a rich 

 yellow color and pale metallic lustre, while the 

 top of the head and the thorax gleam with 

 burnished gold of a brilliant reddish cast. The 

 under surface has a polished coppery hue, and 

 is thickly covered with whitish, woolly hairs : 

 this latter characteristic has suggested its spe- 

 cific name, lanigera^ or wool-bearer. 



This insect appears late in May and during 

 the month of June, and is distributed over a 

 very wide area, being found in most of the Northern United 

 States and in Canada ; and, although seldom very abundant, 

 rarely does a season pass without some of them being seen. 

 During the day they are inactive, and may be found clinging 

 to the under side of the leaves of trees, often drawing together 

 two or three leaves and holding them with their sharp claws 

 for the purpose of concealing themselves. At dusk they issue 

 from their hiding-places and fly about with a buzzing sound 



