42 



On the 2()th October of this year, the work of this fly was again 

 evident at Eobinson, larvae occurring in three fields out of ten ex- 

 amined by my friend Mr. Moore. 



As confirming the evidence from our breeding cages of the early 

 hatching of a considerable percentage of the flaxseeds of the spring 

 brood, I quote from a private letter from Mr. John Marten.* He 

 says, "I have found but few of the spring brood of larvae, as I wrote 

 you in my last, and no flaxseeds ; but on June 8, I found an adult 

 female sticking in the oil on my lamp in my room. During the 

 subsequent week I found four others on lamps. I was not well 

 enough at the time to go to the fields, or I might possibly be able 

 to report something more interesting now." 



I append a tabular exhibit of the observations reported above in 

 order to bring the details more clearly under the eye. 



* Mr. Marten was for a long tinae assistant of Dr. Cyrus Thomas, my predecessor in 

 the offiee of State Entomologist, and is in every way an intelligent and competent ob- 

 server, thoroughly acquainted with the Hessian fly, in whose midst he has lived for years. 



CALENDAE. 



1883. 



1884. 



Apr. 

 May 



24 

 25 

 26 

 27 



8 



9 







32 June 



33 

 34 

 35l 



9.. 



19.. i Albion, 



21.. 



25.. 



26.. 



27.. 



30.. 



31.. 



2.. 



3.. 



3.. 



4.. 



Robinson... 

 Robinson... 

 Mt. Carmel. 



Robinson. 



Marshall. 



Marshall 



Robinson 



Robinson — 

 Mt. Carmel. 



Carmi 



Eldorado 



Robinson .. 

 West Union 

 Villa Kidge. 

 Anna 



Just hatched 



