(March 16, 1868 in – July 24, 1957) was an American professor of entomology. He was elected in 1898 a Fellow of the .
5 quotes found
"s are most likely to be seen about about old logs and stumps that are red with decay and crumbling, though an old rail fence or a stone wall is often their last resort. It is no accident that we find them oftenest about old stumps; the rusty red of their fur matches the color of the rotten wood, and they escape the notice of their many powerful enemies. Even the conspicuous stripes of black and white fall into place at lights and shadows, and tell no tales of their presence."
"See how the is adapted to . Its s stand erect with s curving inward. The trough-like pollen cavities of the anthers, opening upward, expose their stores to the insect standing on top. So great is the excess of production over actual needs that the little bee wastefully and unwittingly scatters over the is enough for setting the seed. This store of choice food the flower reserves for its proper visitor—chiefly for this little bee. Large bees would have great difficulty in collecting pollen from flowers that hang on such slender stalks. Wingless insects, like ants, which, if gathering pollen, could run only from flower to flower upon the same plant, and which would thus be poor agents in , are rigidly excluded. Should they be able to run out along the slender flower stalk, and round the fringed border of the and get inside, they would still find between themselves and the pollen overhead a barrier of glandular hairs bearing an acrid and offensive secretion which they would choose to avoid contact."
"In the beds of all our larger lakes and streams there exists a vast animal population, dependent, directly of indirectly, upon the rich organic food substances that are bestowed by gravity upon the bottom. Many fishes wander about over the bottom foraging. Many , heavily armored and slow, go pushing their way and leaving tralis through the bottom sand and sediment. And many smaller animals burrow, some by digging their way like moles, as do the and of gomphine dragonflies; some by "worming" their way through the soil, as do the larvae of and many . Among the burrowers none are more abundant or more important than the young of the mayflies. Indeed, there are hardly any aquatic organisms of greater , for they are among the principal herbivores of the waters, and they are all choice food for fishes. How abundant there are in all our large lakes and streams is well attested by the vast hordes of adults that appear in the air at the times of their annual swarming. They issue from the water mainly at night."
"s and frogs and s, scurrying to cover as we approach the shore of a still clear pond, show us that the water has some very lively inhabitants. They swim and dive and paddle in the open until we come, and then they hide from us distrustfully. Theirs is another world than ours. In that world there are strange living creatures in endless variety. ... No one who has lived by clear waters can have failed to see something of their wonderful life: minnows on the shoals; s dragging their cumbersome portable houses over the brook bed ; the clinging to the stones in the riffle, or the adult in their dancing nuptial flight in the air above the stream; and what could be more interesting? To make the knowledge of the whole range of life in ponds and streams a little more easy of access ... is a public service of no small moment. It is all in the interest of a better human environment; better for health, for , for instruction, and for aesthetic pleasures."
"Among Professor Needham’s most distinguished research is his work with the aquatic insects—the , , and . To the damsel flies and dragonflies particularly, he gave much of his time in study of the biology and classification. His outstanding work A Manual of the Dragonflies of North America, revised in 1954 with a former student, Dr. M. J. Westfall, as co-author, was published by the only a few years before his death. During his career Professor Needham published more than 250 scientific articles, educational papers, and textbooks. His writing was clear, concise, and interesting to read."