105 



Korea were returned as unmailable by the postoffice authorities. 

 Two lots of fruit and one pine tree were sent back on board of 

 the steamer, as the same were contraband coming- from Japan. 



Beneficial Itiseets. 



During the month of January the following parasites of fruit 

 flies have been bred : 



Tetrastichus giffardii 9,600 



Diachasma fullawayi 326 



Diachasma tryoni 300 



Total bred 10,226 



Including the usual number of parasites of the horn, house and 

 stable fly, as well as the usual emergence of Opiiis humiles from 

 gathered fruits at the Insectary, the following parasites were lib- 

 erated in various sections : 



Tetrastichus giffardii 6,500 



Diachasma fullawayi 289 



Diachasma tryoni 2S?) 



African spalangia 1,300 



Philippine spalangia 1 ,200 



African hornfly parasite 1,200 



Philippine Pteromalid 1,300 



Galesus silvestrii 50 



Dirhinus giffardii 50 



Total parasites liberated during the month. . 12,142 



The reason that we are able to liberate more Tetrastichus gif- 

 fardii than other fruit fly parasites is on account of getting- from 

 30 to 40 of these from one fruit fly pupae. This explanation 

 seems necessary, as some people do not seem to understand why 

 we rear so many of the first-named species. 



On January 14 Mr. Curtis P. Clauson, Assistant of the Cali- 

 fornia State Insectary, brought two large boxes with parasites of 

 the citrus mealy bug. These arrived in very good condition, and 

 as soon as the weather conditions permit, large numbers will be 

 liberated in various sections. This parasite is an enemy of the 

 citrus mealy bug. Fortunately this species of mealy bug has not 

 given much trouble in these Islands, and, although present, never 

 becomes very abundant, but thinking that the parasite might 

 attack other species of mealy bugs, especially the one attacking 

 the alligator pear tree, we sent our request for some colonies to 

 the California institution. The species has now been observed 

 for several months, and has attacked the large sugar cane mealy 



