AND THE MECHANIC ARTS. 525 



there being no swallows, king birds or other insectivorous 

 birds." 



On Aug. 18, Mr. W. S. Abbott investigated the region In the 

 towns of Sullivan, Keene, Hancock, Peterboro and the intervening 

 region. Through this section he found the maples, birch, beech 

 and ash badly stripped, the maple and beech being taken first. 

 No larvae or adults were found', but the pupae were abundant in 

 the leaves. In Sullivan was a wood lot of about a hundred 

 acres which was badly stripped. In this region many parasites 

 were found, about one-fifth of the pupae being broken open. In 

 one case specimens of Calathus gregarius were found feeding 

 on freshly broken pupae. Carabidae and carabid larvae were rather 

 plentiful among the dead leaves. At this place predaceous 

 enemies were more numerous than in any other locality. Many 

 of the maples which had not been entirely stripped by Hetero- 

 campa were being attacked by Anisota ruiicunda. At Peter- 

 boro on the farm of W. C. Abbott was a row of maples which 

 had been badly infested, but an early spraying with arsenate of 

 lead had killed the worms, and the trees appeared uninjured. 



Earlier in August Prof. E. Dwight Sanderson visited Tam- 

 worth, extending his trip up to Intervale and through the White 

 Mountain region. From his observations the larvae were not 

 destructive in the White Mountain region proper, the last serious 

 infestation being at Intervale. 



On July 20 the writer visited Tamworth and vicinity, the re- 

 sults of which form the basis of this paper. Later in the season, 

 Aug. 11, a trip was made through the towns of Sutton and Suna- 

 pee, southward through the intervening towns to Bradford and 

 Henniker. In Sutton the work of Heterocampa was not so much 

 in evidence except in two or three places. At South Sutton, in 

 particular, were several hundred acres which were entirely 

 stripped. However, there were but few hard-wood trees which 

 had escaped the attack of this insect, the pupae of which could 

 be found in small numbers buried beneath the leaves. In the 

 town of Sunapee in the region lying nearer the lake the larvae 

 of Anisota rubicunda were quite numerous, while but few Het- 

 erocampa pupae could be found. Through the towns of Goshen, 

 Newbury and Bradford were many large tracts of hard wood 

 completely stripped, though there is no doubt but th^t Hetero- 

 campa was greatly assisted in this by Anisata ruMcunda and 

 Anisota stigma, as these larvae were quite numerous everywhere. 

 Through the towns of Warner and Henniker the work was still 

 less evident, there being but few patches entirely defoliated. 



