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Excerpt from The Biotic Associations of Cockroaches: With 37 Plates
This is true of the cockroaches, which now include approximately described species. Conservative estimates based on partially studied museum collections and the percent of new species found in recent acquisitions, particularly from tropical and subtropical coun tries, indicate that at least species remain unnamed. Although the group is well known in general terms to nearly all entomologists, there is an almost complete void of information about all except the few domestic species and, to a progressively diminishing degree, some 400 others. Many details about the lives of even those that Share man's habitations are not fully understood. This then is a rough measure of how little is known about cockroaches.
With the exception of mosquitoes and a few other comparatively small groups of insects on which work has been concentrated, it is doubtful if any other comparable segment of the world's insect fauna is better known. Already an estimated kinds of insects have been described, and since this figure is generally regarded as less than half the actual total, think What this means in terms of knowledge yet to be assembled. No wonder entomology is a growing Science with a promising future, but the magnitude of the task also presents a serious obstacle to progress. Progress can continue only if the scattered literature resulting from the diversified labors of hundreds of contributors is brought together and summarized in thorough and well-organized compilations that can serve as a solid basis for future research.
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