102 HATCH EXPERIMENT STATION. [Jan. 



EEPORT OF THE ENTOMOLOGIST. 



CHARLES H. FERNALD. 



The work of the past season has been along the lines indi- 

 cated in a previous report, so far as time and circumstances 

 would permit. It has seemed desirable to give especial 

 attention to the immediate needs of the citizens of this 

 Commonwealth, as indicated by the extensive correspond- 

 ence, from which one is enabled to gain a pretty clear idea 

 of the insects especially troublesome, and upon which help 

 is needed, from year to year. The work on the gypsy and 

 brown-tail moths has demanded a large amount of time, not 

 only in frequent inspections of the field work in the infested 

 territory, but also in planning and directing the scientific 

 part of the work. 



A monograph of the plume-moths (Pterophoridce) of North 

 America was prepared and published in the last college re- 

 port, and a revised edition was issued in July as a special 

 bulletin from this station. Such monographs are absolutely 

 essential as foundation work in economic entomology. I am 

 now at work, when other duties permit, on a similar mono- 

 graph of the two remaining families of the Pyralidae. Mr. 

 Cooley's monograph on the genus Chionaspis, a group of 

 very pernicious scale insects, is now quite far advanced, and 

 will soon be ready for publication. 



The San Jose Scale. 

 This insect has now unfortunately become established in 

 various parts of the State, and has been sent here for deter- 

 mination during the past season more frequently than any 

 other. This pest, as well as several other injurious scale 



