201 



acid gas before delivery. A plant brought by Mr. Fullaway for 

 use in caring for the melon fly parasites en route, was destroyed 

 upon arrival as no further use was to be made of it. 



In a shipment of plants arriving from Philadelphia by Wells, 

 Fargo & Co. Express, we found a buxus infested with a green 

 psyllid, an ixora infested with the thread scale, Ischnaspis longi- 

 rostris, and a small pandanus with mealybugs (Psendococcus lon- 

 g is pin us). 



A passenger brought an ornamental garden in which a small 

 pine tree was infested with the pine tree aphis (Chermes species). 

 The garden was thoroughly fumigated before delivery. 



A package of bulbs from Canada was returned by the Post 

 Office as unmailable under ruling of the Federal Horticultural 

 Board. 



Three lots of parasite material arrived during the month con- 

 signed to the H. S. P. A. The shipments were opened at the 

 Station in my presence. All soil and packing of these shipments 

 has been burned as usual. 



BENEFICIAL INSECTS. 



During the month of May the following parasites of fruitflies 

 have been bred : 



Tetrastichus giffardianus 23,900 



Diachasma fullawayi 694 



Diachasma tryoni 681 



Total 25,275 



The following parasites, including those reared for horn, house 

 and stable flies, were liberated in various localities on this and 

 other islands : 



Tetrastichus giffardianus 19,000 



Diachasma fullawayi 708 



Diachasma tryoni 644 



African Spalangia 400 



African hornfly parasite 1,000 



Philippine Spalangia 300 



Philippine Pteromalid 800 



Total parasites liberated 22,852 



Two hundred and seventy-eight parasites (Paraleptomasti.v ab- 

 normis) were liberated in various localities. 



Mr. Fullaway returned from Manila with a supply of para- 

 sites of the melon fly. This species, Opiiis fletcheris, resembles 

 the opius attacking the Mediterranean fruit fly. Mr. Fullaway's 



