. Elementary entomology . Fig. 113. The adult male dobson-fly and its larva, the hellgramite (After Comstock) shown that these insects are not so nearly related, and that they should be divided into several distinct orders, to exhibit their true relationship. Few of them have any economic importance, and 89

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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912