97 



and mottled with black, rose, and yellow, like the sides. Some 

 transverse rows of minute black hairs are visible upon the under 

 surface, two or three to each segment. 



3. The Apple Leaf Eollek. 

 (Caco'cia rosaceaiia, Harris.) 



Order Lepidoptera. Family Tortricid^, 



The larva of this insect, well known to be injurious to the apple 

 from its habit of rolling and eating the younger leaves, was ob- 

 served early last May engaged in a much more mischievous attack, 

 eating the stamens and pistils out of the freshly opened flowers. 

 As the flowers disappeared, these larvae resorted to the young leaves, 

 according to the usual habit of the species. Specimens collected on 

 the 10th of May, pupated June 9, and emerged as imagos June 16. 



4. The Apple Leaf Skeletonizer. 



(Pempelia liammondi, Eiley. 



The Lesser Apple Leaf Eoller. 



{Teras malivorana, LeBaron.) 

 Order Lepidoptera. Family Torteicid^. 



(Plate X. Fig. 5.) 



In nurseries near Normal my attention was called this year, as 

 last, to the extraordinary abundance of the above insects, the effect 

 of whose presence began to declare itself most evidently late 

 in June. Much of the young nursery stock was so seriously affected 

 during this active growing season that its growth was completely 

 arrested ; and as these larvae remained active this year until the 

 leaves fell in autumn, a large percentage of the young trees made 

 no good growth whatever. The varieties with thick and woolly 

 leaves, were, however, little attacked, the moths having evidently 

 selected the smooth and thinner-leaved varieties when depositing 

 their eggs. We made various experimental attempts upon these in- 

 sects in the field, using a force pump for the distribution of a 

 kerosene emulsion and of pyrethrum suspended in water. We also 

 applied powdered lime with a bellows, but none of these applications 

 had a sufficiently pronounced effect to make their continuance ad- 

 visable. A small percentage of the worms would die when thoroughly 

 drenched with the fluids, but rolled as they were in the leaves and 

 protected by their webs, it was impossible to reach them with any 

 thoroughness. On one occasion three days after a complete drench- 

 ing of the trees with the kerosene emulsion, ten still living larvte 

 were taken from a single small tree about three feet high. 



—7 



