Bull. Ent. Research. Vol. VI. Part 3. 



Plate XIV. 



Fig. 1. Males of Daeus zonatus at a bowl containing 0.5 c.c. of methyl eugenol in a pint of 



water, after one hour's exposure from 8 a.m. 



Fig. 2. Males of Daeus diversus at a bowl containing 0.5 c.c. of isoeugenol in a pint of 



water, after one hour's exposure from 8 a.m. 



