December, '14] JONES: PORTO RICAN INSECTS 461 



ADDITIONAL NOTES ON PORTO RICAN SUGAR-CANE 



INSECTS 



By Thomas H. Jones, Entomologist, Board of Commissioners of Agriculture of 



Porto Rico 



In the first three annual reports of the Experiment Station of the 

 Sugar Producers' Association of Porto Rico, Mr. D. L. Van Dine, 

 formerlj. Entomologist, published notes on the sugar-cane insects of 

 the island. In the third annual report Mr. Van Dine gave a list of 

 the insects affecting sugar cane in Porto Rico, including therein men- 

 tion of their natural enemies, followed by a bibliography of Porto 

 Rican sugar-cane insects. On pages 251 to 257 of the Journal of 

 Economic Entomology, Vol. 6, No. 2, there also appeared in 1913 an 

 article written 'by Mr. Van Dine, entitled, ''The Insects Affecting 

 Sugar Cane in Porto Rico." No annual report of the Station will be 

 published this year and, as it is possible to present a few additional 

 notes, the following supplementary information is here given for the 

 benefit of economic workers, especially those interested in sugar-cane 

 insects. 



During the past year Mr. E. E. Green, the well known authority on 

 Coccidce, has advised us that, after examining specimens of sugar-cane 

 mealy-bugs that were sent him from Rio Piedras, he finds that they 

 "agree exactly with examples of Pseudococcus calceolarice Mask," his 

 determination being based "upon comparison with typical examples 

 received from the late Mr. Maskell himself." Apparently this mealy- 

 bug has not before been recorded as occurring in Porto Rico, all pre- 

 vious references to sugar-cane mealy-bugs being given under the name 

 of Pseudococcus sacchari CklL, which was first recorded from the island 

 in a list of Coccidce collected by I\Ir. August Busck during 1899. In 

 connection with this list, which appeared in Bulletin No. 22, new 

 series, of the United States Bureau of Entomologj^, it is stated that 

 the determinations were made by Messrs. T. Pergande, T. D. A. Cock- 

 erell, and C. L. Marlatt. The material representing Pseudococcus 

 sacchari was therefore probably examined by the author of the species. 



On January 30, 1913, at Patillas, Mr. Van Dine found larvae of a 

 cecidomjdid in colonies of sugar-cane mealy-bugs, Pseudococcus sac- 

 chari (?). From these, adults were reared and specimens were for- 

 warded to Dr. L. O. Howard, Chief of the United States Bureau of 

 Entomolog}', who referred the specimens to Dr. E. P. Felt of the New 

 York State Museum. Dr. Felt identified them as belonging to a new 

 species which he has described as Karschomyia cocci} In a letter, 



1 Canadian Entomologist, Vol. XLV, No. 9. Sept., 1913. pp. 304-305. 



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