Abstract
With regard to the origin of the material which Comstock (1) studied in 1880 he says, “From a quantity of commercial stick lac purchased in New York I obtained specimens of an insect which I have no doubt is the Coccus lacca of authors.” Since the lac insects are cultivated like the silk worm in China or in Italy more information is necessary than the mere record of the locality and of the host plant. For example on Shorea talura in the Mysore State the insect, Lakshadia mysorensis , is cultivated while a few years ago the same tree bore an encrustation of Lakshadia communis which differs from the other in several respects. To those who still believe that there is only one species of lac the question does not arise as to the source of the material Comstock studied. However, it will be shown that a few authors confirm Comstock's findings because they also studied the same species while others do not as they were dealing with an entirely different insect.
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