June, '09] ENTOMOLOGICAL NEWS. 2/1 



coons iii the Fall, if wanted, but this cannot be said at the 

 present time. The reason for such a decrease in the numbers 

 of this species has been explained. In 1907 a disease attacked 

 the caterpillars which seemed not to inconvenience them until 

 they began spinning their cocoons. Then they died without 

 pupating, sometimes even before the cocoon was completely 

 finished. The parasites also had a share in the work but were 

 not as effective as the disease in causing a material decrease 

 in the numbers of the species. The result is that in some 

 places where hundreds could have been secured three years 

 ago, there was not an indication of one last year. It will un- 

 doubtedly be several years before this species obtains a solid 

 footing again in this vicinity. 



Callosamia promethea: This species was not very rare 

 last season, but for some unknown reason, was not as abund- 

 ant as in former years. 



Collosamia angulifcra has not been any more rare than in 

 former years. 



Actias lima has been quite abundant last season. It has not 

 been at all common heretofore, but last year it turned up in 

 good numbers in many parts of the State. Fully 50 per cent, 

 were infested by parasites. There will undoubtedly be a de- 

 crease in numbers of this species next year. 



Tclea polyphemus took a big drop last year. The same dis- 

 ease and parasites that infested the cecropia also did its 

 work with this species. Fully 90 per cent, less were found in 

 1908 than in 1907. 



Hyperchiria io was practically absent last year as far as 

 Newark and vicinity is concerned. This species has always 

 been common, but the parasites have reduced the caterpillars 

 to a large extent in late years, and in 1907 they practically put 

 a finish to their work. In that year hundreds of caterpillars 

 could be seen hanging on the twigs, dead, due to the work of 

 the parasites. 



Eacles imperialis was as common last year as in previous 

 years. 



Cithoronia rcgalis was quite common, but most of the speci- 

 mens were infested with parasites. 



