re:port of state entomologist. 215 



stage before the^ emerge as a moth, and a pair of moths, male 

 and female. 



These life histories are put up in mounts 5x6 inches and are 

 shown in the illustration, Plate VI. 



A few sets showing the life history of the gipsy were put 

 up (see Plate VI), with the same object in view, but for the 

 lack of material the work will have to go over until another 

 season. 



The desired number of caterpillars were inflated and enough 

 egg-clusters will be secured this winter and the other stages 

 another summer, so that the full complement of sets may be 

 ready for distribution together with the brown-tail moth. It 

 is planned to loan these to the schools of the State so that the 

 pupils may become familiar with the different stages of these 

 two pests. With the knowledge thus gained a much more effi- 

 cient quarantine may be established. 



Each stage is labeled from the egg-cluster to the mature 

 insect so that one can become acquainted with the whole life 

 history of these two pests. A descriptive circular will accom- 

 pany each mount so that the teachers may be able to fully 

 explain them. We realize that this is one of the best ways to 

 disseminate information along these lines. Some of these 

 mounts have been sent out and others will follow as fast as they 

 can be prepared. 



PARASITES. 



Among the parasites that have come under our observation 

 during the past season are the following: — 



On July 2nd polyphemus larvae were found badly infested 

 with the maggots Exorista futilis, a parasitic fly. On April oth 

 a polyphemus cocoon was received at the office from the town 

 of Alfred. A hole had been made through the cocoon, evi- 

 dently by some bird, and about one-third of the pupa had been 

 eaten out. It was still alive and remained so for several days. 



The larvae of Vanessa atalanta were infested with the para- 

 sitic fly, Exorista futilis. 



Tent caterpillars were quite badly attacked by the parasitic 

 fly Tachina mella. 



February 15th red-humped caterpillars were received badly 

 parasitized by the Hymenopterous insect, Exorista chelonia. 



