378 THE GYPSY MOTH. 



Apanteles glomeratus L. 

 Apanteles fulvipes Hal. 

 Apanteles melanoscelus Rtz. 

 Apanteles solitarius Rtz. 

 Pimplaflavicans Rtz. 

 Pimpla instigator Gr. 

 Mesochorus pectoralis Rtz. 

 Mesochorus gracilis Brischke. 



Mesochorus splendidulus Gr. 

 Mesochorus confusus. 

 Campoplex conicus Rtz. 

 Campoplexdi/ormis Gr. = Limneria. 

 Pesomachus hortensis Gr. (hyper). 

 Hemiteles fulvipes Gr. 

 Trogus flavatorius Pnz. 

 Ichneumon disparts Poda. 



It is interesting to note that all the genera included in 

 the above list are represented by species in this country ; 

 yet, aside from the genus Pimpla, no members of the dif- 

 ferent genera have been found to attack the gypsy moth. 



Predaceous Wasps and Hornets. 



The following species of wasps and hornets have been 

 observed feeding upon the different stages of the gypsy 

 moth: Vespa maculata Linn., Vespa consobrina Sauss., 

 Vespa germanica Fab., Polistes pallipes St. Farg. 



At a new colony of gypsy moths, in North Saugus, in the 

 early part of August, a large number of Vespa maculata 

 were observed flying close to the ground, around the base 

 of the trees or carefully searching the trunks up and down, 

 sometimes even going up into the tops of the trees. They 

 were closely watched, and a maculata was seen to fly after a 

 male moth, follow its zigzag flight as it attempted to escape, 

 and finally capture and carry it to a small branch. The 

 hornet soon dismembered the moth and began feeding upon 

 the abdomen. 



Two other hornets of the same species were seen flying 

 after male moths. The first one chased a moth up above 

 the tree tops and then off to one side and out of sight. 

 The other followed a moth for about eight rods through the 

 woods, and then caught him, but flew off before it could be 

 taken with a net. 



At another time a number of large brown wasps (Polistes 

 pallipes) (Plate 53, Fig. 5) were noticed flying about the 

 trees. When they discovered a branch on which caterpillars 

 had clustered they alighted, and, running along the under 

 side of the branch and leaves, each wasp located its prey, 

 left the branch, and, flying about the caterpillar, finally 



