126 MAINE AGRICULTURAL EXPERIMENT STATION. 



larval form and went into the chrysalis state in August and 

 emerged the following spring, a fact which would indicate only 

 one brood in Maine. Prof. Riley believed that there are two or 

 three broods in the latitude of St. Louis, Mo. In the latitude 

 of New York, Prof. Lintner states that there are two broods, 

 one in July and one in September. 



In September or October the cocoons in which the pupae spend 

 the winter are formed. The larvse feed externally upon the 

 foliage, at least the leaves we have received had the upper epi- 

 dermis and pulp eaten away in patches, the veins and lower 

 epidermis intact. 



Remedies. 



(a) Jar the trees when the larvse are full grown and they will 

 suspend themselves by threads and can be swept down by a 

 broom and killed by hot water or crushed. 



(b) Apply kerosene emulsion with a spraying pump in winter, 

 to the branches that bear the cocoons. The same application 

 might be made for the first brood when the foliage is on. 



(c) If in small numbers, the cocoons may be removed during 

 the winter months by hand. 



(d) Spray with Paris green, as for other leaf eating insects. 

 This small moth is preyed upon by several parasites that attack 

 the larvse and hold the pest in check, and some of the cocoons 

 probably suffer somewhat from inclemency of the weather. 

 Possibly birds may eat them, but we find no record of observa- 

 tions. 



THE WHITE-MARKED TUSSOCK MOTH. Ofgyia (Notolophlis) 



leucostigma, Sm. & Abb. 



During the past ten years specimens of the above insect, in 

 the tgg, larval and wingless female stages of its life history, have 

 been received at the Experiment Station from various parts of 

 the State. It is a native species and is apparently widely dis- 

 tributed, having attracted considerable attention as an apple 

 insect. 



Description. 



Eggs. — Three or four hundred in a mass, attached to the empty grayish 

 cocoon previously occupied by the female moth. Egg mass convex, 

 smooth, grayish-white ; composed of several layers of eggs, with a frothy, 

 gelatinous material between them. 



