300 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. § 



occasional formation of the pupal cell was noted, and in every case the 

 fly-puparia were found free in the earth. The same held true for P. 

 claripennis so far as noted. 



In cases where G. unifasciata was reared the host pupated and the 

 fly-parasite emerged from the pupal host. 



We have preserved in our collections one army-worm with 16 evident 

 parasitic eggs — one with 17 eggs, and one with 34 eggs, these being 

 the highest numbers found. 



The rearings from the army-worms collected at Neuse, N. C, and 

 which showed from 0 to 15 parasitic eggs per worm, are indicated in the 

 following table. 



Eearings from Army-worms from Neusi:, N. C, 1914 



Visible 

 Parasitic 

 Eggs per 



Worm 



Worms 



Moths 

 Reared 



Tachina-flies 



.2 « 



Flies 



Fly 



Per cent 

 Flies . 

 to Fly 

 Eggs 



0. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11, 

 12. 

 13. 

 14 

 15 



158 



152 

 192 

 144 

 150 

 144 

 126 

 112 

 45 

 50 

 11 

 36 

 26 

 14 

 15 



20.83 

 26.97 

 32.81 

 27.77 

 23.3a 

 15.27 

 13.49 

 8.92 

 6.65 

 6.00 

 27.27 

 8.33 

 15.38 

 7.14 

 6.66 



Totals. 



534 



220 



271 



+25* 



1,313 



296 



* 25 flies were deformed, mutilated, lost, or otherwise not identifiable. 



It will be noted that from 158 worms, .which bore no visible eggs, we 

 reared 15 adult moths (less than 10 per cent) and that 5 flies, all but 

 one of which were G. unifasciata, emerged. One moth issued from the 

 worms showing one egg each, one moth from worms w^ith 4 eggs each, 

 and one moth from worms showing 5 eggs each. No moths were 

 reared from 74 worms showing from 6 to 15 eggs each. 



