Summary

Portrait of Alexander Henry Haliday Alexander Henry Haliday On Some Remaining Blanks in the Natural History of the Native Diptera

ON SOME REMAINING BLANKS IN THE NATURAL HISTORY OF THE NATIVE DIPTERA. The natural history of the Diptera, in particular, as I understand it, is the history of the changes through which they pass, and the manner of life of the larva. Arrived at the perfect state, the winged insect is usually content with light nourishment, such as the nectar drops from the chalice of a flower, the golden dust of the anthers, or the honey-dew with which the leaves are besmeared by colonies of Aphides.
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Portrait of Alexander Henry Haliday Alexander Henry Haliday On Some Remaining Blanks in the Natural History of the Native Diptera

Ztt., D. S— Zetterstedt, Diptera Scandinaviae
In conclusion, it appears from this list that while the history of many of the families is inferred only from the knowledge of that of a few genera in their earlier stages—sometimes from a single example,— and though the extent of that knowledge, in many cases, is very trifling, or little more than sufficient to guide us to further investigation, on the other hand there remain but three of the families in which we are absolutely without anything to be called information in regard to this part of their natural history
Source: Wikisource

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