1 893-] 



ENTOMOLOGICAL NEWS. 



199 



Somewhere in mid-Summer the insect lays its eggs on the underside of 

 the leaf, in little patches of from 15 to 20, or more rarely from 30 to 40. 



These eggs are yellow, and 

 resemble the eggs of the po- 

 tato beetle quite closely; the 

 accompanying figure shows 

 their general appearance 

 fairly well. The eggs hatch 

 in about a week, and a little, 

 spinous, yellow larva, makes 

 its appearance, not unusually 

 signalizing its entrance into 

 the world by eating into its 

 helpless relatives who have 

 not yet emered from the egg, 

 showing perhaps a remnant 

 of the ancestral carnivorous 

 habit. The larva feeds indif- 

 ferently on the upper or un- 

 derside of the leaf, but more 

 Fig. 2. -Egg patches. conmionly on the latter, and 



«ats the epidermis only, and not the entire leaf tissue. The infested 

 leaves dry up, wither and die. 



Late in July, or in August, the larvae become full grown, and then ap- 

 pear as shown in the figure. The spines when examined under a mod- 

 erate power of the microscope 

 are very interesting objects, 

 branching from main stem, the 

 branches themselves jointed as 

 in some of the urticating larvae. 

 The larva attaches itself by the 

 anal extremity and changes to a 

 pupa, much as do the other Coc- 

 cinellidae, and this stage lasts 

 only a few days. The beetles, 

 after they emerge, feed very lit- 

 tle, if at all, and soon disappear, 

 finding Winter quarters under 

 rubbish, in outbuildings or barns, 

 or in fact wherever there is a 

 crevice large enough for them 

 to crawl into. 



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J. 



• 



Fig. 3. — Larva, piipn and ima<;o. 



As to the remedies for this species, these are very simple: the insect 

 feeds entirely exposed at all periods of its life, and in the imago stage on 

 the upperside of the leaves, so that the arsenites can reach them without 

 any trouble at all. 



