48 



THE MONTHLY BULLETIN. 



ENTOMOLOGICAL. 



THE NEW ZEALAND PEACH MOTH. 



(Ctenopseutes ohliquana.) 



By B. B. Whitney and L. A. Whitney. 



It is seldom that the quarantine officers have the opportunity of 

 benefiting any one specific branch of the vast horticultural interests 

 of the state, but in the instance cited in this article, the peach growers 

 of California were probably saved the introduction of an insect, that if 

 it became established, would, without doubt, cause as much trouble as 

 our own peach twig borer, Anarsia Uneatella. 



When the S. S. Aorangi arrived at San Francisco April 21, 1914, 

 from Australia, New Zealand and South Sea Island ports, she carried, 

 among numerous other horticultural products, 193 boxes of New 

 Zealand grown peaches destined for California markets. Upon inspec- 

 tion this fruit was found to be infested with the larvs of a Lepidop- 

 terous insect. As the infestation was severe and the insect was a 



Fig. 13. — Peaches showing the larvae of the New Zealand Peach Moth 

 (Ctenopseutes obliquana) at work. (Photo by L. A. Whitney). 



stranger to California, the material was refused entry and subsequently 

 deported. The wisdom of the action was apparent after specimens of 

 the adults had been reared, for it proved to be the New Zealand Peach 

 Aloth, Ctenopseutes ohliquana, a native of New Zealand and an insect 

 that is exceedingly injurious to the peach industry of that com- 

 monwealth. 



LIFE HISTORY. 



The Larva.— The mature larva? (Pig. 13), are of a dull green color 

 with a bluish tinge on the sides, head dark brown or lilack, slender and 

 about three fourths of an inch in length. 



The Pupa. — The pupal period takes places inside the peach under 

 natural conditions but in the material observed the larva? entered the 



