200 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Habitat: Porto Rico. 



Described from six specimens, male and female, reared 

 from the "sugar cane May-beetle"' by D. L. Van. Dine, 

 collected April 29, 1912 at Anasco, Porto Rico. 



Type: Deposited in U. S. National Museum, Washington, 

 B.C. 



Under Notes and Exhibition of Specimens Mr. Rohwer men- 

 tioned having bred the fly DasyUis thoracica from the gal- 

 leries of a scarabseid beetle in chestnut. This may establish a 

 parasitism for this fly, which collectors have often found flying 

 around old stumps infested by beetle larvse. 



In answering Professor Quaintance's query in regard to the 

 important parasites of Lachnosterna larvse, Mr. Rohwer stated 

 that the people in Porto Rico were working more with the 

 hymenopterous parasites than they were with the dipterous. 

 They have bred one species belonging to Cainpsomeris and 

 are trying to introduce a species of Tiphia from the middle 

 United States with the hope that this species will work -effect- 

 ively as a parasite to the Lachnosterna larvse in Porto Rico. 

 Professor Froggatt, of Australia, has bred a species of Scolia 

 from the larvse of white grubs in Australia and has carefully 

 described and figured these parasites of white-grub larvse. 

 Mr. Rohwer stated that he was of the opinion that the people 

 of Porto Rico could do better if they worked more extensively 

 on the species belonging to family Scoliidse and did not 

 endeavor to introduce North American Tiphia, as it is doubt- 

 ful if the species Tiphia will acclimatize themselves to Porto 

 Rico. He also stated that most of the North American species 

 of Tiphia which live in the eastern United States have been con- 

 sidered to be Tiphia inornata, but that there are really 

 many forms which belong to this specific group and that the 

 species of the Middle West, in the main, are different from the 

 species of the Atlantic Coast. Judging from the diverse species 

 it is impractical to endeavor to introduce Tiphia inornata into 

 Porto Rico. As most of the species which belong to this group 



1 Mr. E. A. Schwarz says that this is in all probability Lachnosterna 

 crenatocollis Blanchard. 



