68 



by larvEe of Syrphus americmius and parasites, among which is Lysi- 

 p/dehus ')nyzi Ashm. At several points the eggs of this aphis were 

 very abundant, but few lice appeared and did but little damage. 



Myzus sp. 'I — During the last week in April the stem mothers of an 

 aphis, determined by Mr. Th. Pergande to be a species of Myzus, were 

 found depositing young with A. inali. These stem mothers were 

 large, globular, bluish-black, slightl}^ pruinose, and the young were of 

 a light-brown color. This species curls the leaves much worse than 

 the former, and has been found very common on apples throughout 

 the State. On eTune 16 I found that they had been destroyed in one 

 badly infested orchard mostly by parasites, among which were 

 Lysiphlebiis cucurhitapMdls Ashm., and some undetermined species, 

 and also by syrphid larvae and Chilocorus hwidnerus. The adults of 

 the next generation are of a brown color, marked with yellowish 

 where the embryos show through the abdomens. The larvae, pupge, 

 and nearly molted adult apterous forms of the next generation are of 

 a decided pinkish color, while the winged individuals are of a brown- 

 ish-black color. The following generation is also partl}^ composed of 

 winged aphides. 



Aphla sp. — Late in May an undetermined species of Aphis spreads 

 to the apples from wild-cherry trees and soon becomes thickly clustered 

 upon the terminals. This species is bright yellowish and green, prom- 

 inently marked with black. 



Lophoderus quadrifasciana Fern. — As the buds commenced to 

 unfold in April, fine silk threads could be seen running here and there 

 between the terminals. These were found to be made b}^ small, yellow 

 Tortricid larv», evidently just hatched from the eggs. Later these 

 became a bright green color, and when full grown were about 10 mm. 

 long. They pupated Ma}^ 16 and emerged May 25 to June 2, the 

 species proving to be Lophoderus quadrifasciana Fern, one not previ- 

 ously noted as an apple insect. The larvas were quite common, and 

 did more or less damage by webbing the leaves together. 



The larva3 of Penthina ckionesema Zell. have similar habits and have 

 previously been noted as apple pests in Missouri by Miss Murtfeldt. 

 The larvae are so similar to the latter species that they were not dis- 

 tinguished, though I find subsequently that they are considered larger. 

 A larva of this species pupated May 14 and the moth emerged Ma}' 22. 



Larvffi of Cacoecia rosaceana Harr., are common, but not sufficiently 

 so to do much injury. Moths emerged May 30. 



Cases of Mineola indlginelhi Zell. were found very common during 

 the winter, but I did not observe much work of the larva^ in the 

 spring. They })upated about May 15 and the moths emerged the first 

 week in June. 



A small, reddish larva was observed to do considerable damage by 

 boring into the young buds, but I failed to rear it. Mr. Busck thinks 



