COLONIES LIBERATED IN MASSACHUSETTS. 87 



Stow. — On July 7, 1910, 48 male and 38 female Calosoma beetles were liberated in 

 badly infested woodland. 



Sudbury. — On July 25, 1910, 200 Calosoma larvae were liberated in badly infested 

 woodland in East Sudbury. On this date very few gipsy moth caterpillars or pupae 

 were present. Most of the moths had emerged and several had laid their eggs. 



Swampscott. — On June 26, 1908, 75 Calosoma larvae were liberated in infested 

 woodland off Danvers Street. On June 30 100 more larvae were added to this colony. 

 Examinations were made in 1909, and a few beetles were found in the colony. In 

 1910 no beetles or larvae were seen in the center of the colony, but in the area outside 

 where gipsy moth caterpillars were at all abundant, molted skins were found. 



July 1, 1908, 100 Calosoma larvae were liberated on high land north of the Ocean 

 House. On July 6, 100 more larvae were added to the colony. Examination was 

 made in 1909, but no beetles or larvae were found. During the summer of 1910 several 

 larvae and molted skins were found from one-half mile to a mile distant from the 

 colony. 



Tewksbury. — On August 12, 1908, 100 Calosoma larvae were liberated in woodland 

 where gipsy moth caterpillars had been present earlier in the season. At this date 

 all the moths had emerged and deposited their eggs. Brown- tail moth caterpillars 

 were hatching and feeding on foliage of some of the deciduous trees. This colony 

 was examined in 1909 and 1910, but no Calosoma beetles or larvae were found. The 

 colony was liberated principally as an experiment to determine whether it was possible 

 for any of the beetle larvae to survive and develop upon such a limited food supply. 



July 2, 1910, 50 male and 50 female Calosoma beetles were liberated in badly infested 

 woodland off Shawsheen Avenue. July 14, 1910, 200 beetle larvae were liberated 

 near Prospect Hill in infested woodland. 



Topsfield. — On July 8, 1910, 180 beetle larvae were liberated in badly infested 

 woodland off High Street. 



Wakefield. — No beetles have been liberated in this town. In 1909 it was found that 

 a small area along the eastern border had been stocked with beetles from the Saugus 

 colonies, and in 1910 the beetles were found in various localities in practically every 

 part of the town visited. 



Waltham. — On August 7, 1908, 100 Calosoma larvae were liberated in wood and brush 

 land off Lake Street. At this date no gipsy moth caterpillars were present. A few 

 small brown-tail moth larvae were feeding and occasionally a native caterpillar would 

 be found. The Calosoma larvae were nearly full grown, all having molted the second 

 time. This colony was examined in 1909, and no beetles or larvae were found during 

 the summer, but on September 2 a single molted skin was found under burlap near 

 the center of the colony. June 1, 1910, a beetle was found in the center of the colony, 

 and in July several larvae were noted. The territory surrounding was scouted in 

 August and September and a considerable number of molted skins was found in 

 Prospect Park, some of these at a distance of 2 miles south of the colony. 



Way land. — On July 12, 1909, 200 Calosoma larvae were liberated in infested wood- 

 land off Poor Farm Road. The colony was examined in 19] and a few beetles and 

 larvae were found near where the original planting was made. In September molted 

 skins were found about 200 yards outside the planting. 



Wellesley. — On June 27, 1908, 36 male and 37 female Calosoma beetles were liberated 

 in infested woodland near Wellesley Farms station. July 2 69 males and 81 females, 

 taken from a shipment received from Europe June 29, were liberated in this same 

 colony. In the fall of 1908 an examination of the trees in this colony was made and 

 a large number of molted skins was found on the trunks and underneath the burlaps. 

 In 1909 and 1910 both beetles and larvae were found in the center of the colony. In 

 1909 the territory in the northern part of Wellesley and extending into the southern 

 part of Weston, about 2 miles in length and 1 mile in width, was inhabited by this 

 species. In 1910 this region was kept under observation, and late in the season areas 



