Principal household insects of the United States . Fig. I.—Culexpungent; a, female, from side; /, male, from above; <*. front tarsus of Bame; d, middletarsus; e, bind tarsus;/, genitalia of Bame; gr, scales from hind borderof wring; A, scales from diskof wing—enlarged (original). rately determined species of many of our commonest insects have notbeen published. This is mainly due to the fact that most entomologistshave a way of saving time by following tin observations of older writers. MOSQUITOES AND FLEAS. 11 This is all well enough where the species and the conditions are identi-cal, but
Principal household insects of the United States . Fig. I.—Culexpungent; a, female, from side; /, male, from above; <*. front tarsus of Bame; d, middletarsus; e, bind tarsus;/, genitalia of Bame; gr, scales from hind borderof wring; A, scales from diskof wing—enlarged (original). rately determined species of many of our commonest insects have notbeen published. This is mainly due to the fact that most entomologistshave a way of saving time by following tin observations of older writers. MOSQUITOES AND FLEAS. 11 This is all well enough where the species and the conditions are identi-cal, but when, as is the case w itli sneli an insect ;is that under observa-tion, the principal observations were made upon a different, thoughcongeneric, species, and in another part of the globe, where climatic and other conditions differ, the custom is unfortunate. There is not, inany of our published works, a thoroughly satisfactory figure of a well-determined species of mosquito, or of its earlier stages. The statementsquoted in the text-books a
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashi, bookyear1896
