164 MAINE AGRICULTURAL EXPERIMENT STATION. 1904. 



white-marked tussock moth. Notolophus (Orgy ia) 



leucostigma. 



old tussock moth. Notolophus antiqua. 



well-marked tussock moth. Notolophus definita. 



The moths of this Notolophus group are closely related to the 

 gypsy and brown-tail moths. The caterpillars resemble these 

 two pests in having bright red tubercles on the sixth and seventh 

 abdominal segments. The female moths are wingless and 

 usually cling to the cocoons from which they emerge and deposit 

 their egg clusters there. They winter in the egg stage and 

 where they are numerous, the white, rather conspicuous egg 

 clusters (figure 24) are gathered and burned during the winter. 

 The caterpillars may be killed in the spring by arsenical sprays. 



Caterpillars of all three species were collected in Maine this 

 summer, the white-marked and the old tussock moths (figure 

 25) being common in the orchards and cherry growths at 

 Kittery. 



The white-marked tussock moth has proven a serious pest in 

 several New England cities. For the last few years Portland 

 has been especially troubled by them. Not long since the park 

 board had the egg-laden cocoons gathered "by bushels" and 

 destroyed. The same proposition faces them this year, for 

 many of the tree trunks along the Western Promenade and 

 vicinity are lined with this season's cocoons, the egg supply on 

 some of the young elms being great enough to forbode defo- 

 liated trees in the spring. 



hickory tiger-moth. Halisidota caryco. 

 This shaggy black and white caterpillar (figure 2^) which 

 grows to nearly an inch and one-half in length does not confine 

 itself to hickory but is commonly seen late in summer feeding 

 freely on many trees, the wild cherry and apple among them. 



red-humped caterpillar. CBdemasia concinna. 

 More of these have been sent to the Station this summer than 

 any other insect. The caterpillars (figure 26) are striking in 

 appearance having fine longitudinal stripes of black, white and 



