pupae. Of one of the smallest coccinellids found in Australia, Scym- 

 nm flavifrons Blackb., that preys ckietly upon various black scales, the 

 larvae as well as the pupae are destroyed in Large numbers by small par- 

 asites. It is doubtful whether there exist any Ooccinellidae in Aus- 

 tralia that are not preyed upon by parasites in one form or another; 

 the larva- of tfovius and perhaps Chryptolcemus, which was bred in 

 large numbers without obtaining parasites, may be exceptions. 



It goes without saying that if such insects are introduced into any 

 new country without their natural enemies and the parasites that 

 have hitherto preyed upon them and retarded their increase, they must 

 become most prolific in their propagations. 



About 40,000 specimens of various coccinellids were collected on this 

 trip and forwarded to California. I give a brief account of such species 

 as had been named for me. With the rest, which consist chiefly of 

 various species of Rhizobii and Seymnids, nothing- can be done at pres- 

 ent; they were returned to Rev. Mr. Blackburn for determination. 



Parasites of the so-called Australian locust were also bred from this, 

 and as these were rather scarce, but a small number (92 puparias 

 and 2 larva-, representing three species of flies) could be obtained, 

 which were forwarded to the Entomologist at Washington, who re- 

 ported that they arrived in poor condition, as a number of them had 

 hatched between San Francisco and Washington. These insects ar- 

 rived here in January. Internal para-sites of Lecanium olece Bern., and 

 L. hesperidum Linu. were sent here, and two species of an internal para- 

 site of Asp idiotus nerii Oomst. were liberated together with internal 

 parasites of Lecanium depression Targioni — this latter upon L. pesper- 

 idum. 



The larvae of three moths that are remarkable in cleaning whole 

 trees of scales were sent over; those of two species of Thalpochares, 

 feeding upon all larger coccids, and of a tineid, that often covers whole 

 trunks of orange and lemon trees with a line silky web, under which 

 live hundreds of larvae that devour the scales. Two species of fun- 

 goids that are destructive to the black and red scales, Chionaspis citri 

 Comst., and Mytilasphis gloveri Pack., were sent here. An attempt 

 will be made to establish them upon those coccids in California. 



The most if not all the insects liberated here as directed will, in my 

 (.pinion, breed successfully. The more valuable species naturally will 

 make themselves known first upon our fruit trees, while others may 

 not be seen again for years, feeding upon such scales as infest trees in 

 the forest. 



I expect the best results of the various Rhizobiids wdiich will feed 

 upon most of our Ooccidae, having numerous broods annually and 

 whose larva' are to be found at any time during the year. Some twenty 

 species of these were sent here. 



The four species of Orcm sent to Mr. Coquillett, if my observation 

 in the Held is correct, have but two broods annually, the mature insects 



