452 MAINE: AGRICULTURAL EXPERIMENT STATION. 1912. 



Considering the fact that a single winter nest should contain 

 from 150 to 350 or more hibernating 1'arvse the following record 

 is of interest though it is incidental, as no attempt to canvas 

 the State was made. Curiously the most northern nest received 

 (Monson) contained only living caterpillars. 



Partial Record of Winter Nests Received Spring 1912. 



Monson, Piscataquis County. 6 nests, 700 larvae alive. 



Cooper, Washington County. I nest, 10 larvae alive. 



Bangor, Penobscot County. 8 nests. Most larvae dead. 



Orono, Penobscot County. Many nests (all from I orchard). All 

 larvae dead except a few and those were not vigorous. 



Walpole, Lincoln County (ist sending). Many nests. Most larvae 

 dead. 



Walpole, Lincoln County (2nd sending). Many nests. Most larvae 

 alive. 



Auburn, Androscoggin County. 9 nests. Most larvae dead. 



Wales, Androscoggin County. 10 nests. All larvae dead. 



Oxford, Oxford County. I nest. 8 larvae alive. 



Freeport, Cumberland County. 4 nests. Most larvae dead. 



Brunswick, Cumberland County. Many nests. All larvae alive. 



Berwick, York County. Many nests. All larvae alive. 



Porthetria dispar. 



GYPSY MOTH. 



This dreaded insect pest is making its way northward in the 

 State and the egg masses are numerous this fall in the vicinity 

 of Portland. 



TENT CATERPILLARS. 



Malacosoma americana and disstria. 



Both the Orchard Tent and Forest Tent caterpillars were 

 unusually numerous in many parts of the State this year. Both 

 species did much damage to the foliage of apple trees, in neg- 

 lected orchards, both not infrequently being found upon the 

 same tree. The former species constructs large tent-like web 

 nests to which they retire when not feeding. The latter species 

 do not make a tent but instead spin upon the trunk and larger 

 branches of the tree they inhabit a delicate, and inconspicu- 

 ous sheet of silk upon which they travel up and down. Both 

 species deposit their eggs in the summer in a varnished 

 mass in the form of a ring or belt about a twig. In this State 



