Apr. 24, 2013 ? Mymaridae, commonly known as fairyflies, are one of about 18 families of chalcid wasps. Fairyflies occur worldwide, except in Antarctica. They include the world's smallest known winged insect -- Kikiki huna, the body length of which is only 155 ?m, and the smallest known adult insect -- the wingless male of Dicopomorpha echmepterygis which is only 130 ?m. Although fairyflies are among the most common chalcid wasps, they are seldomly noticed by humans because of their minute size. Their apparent invisibility, gracile bodies and delicate wings with long fringes resembling the mythical fairies have earned them their common name.
All but two known fairyfly species are parasitoids of eggs of other insects. These eggs are commonly laid in concealed locations, such as in plant tissues or in leaf litter or soil and are difficult to find, so for the most part the host insects of fairyflies are unknown. Specimens of the new species Tinkerbella nana were collected at the La Selva Biological Station, a lowland rainforest research and education facility owned and managed by the Organization for Tropical Studies, located in the province of Heredia, Costa Rica. They were collected by sweeping in fairly young (no more than 20 years old) secondary forest mixed with a primary forest. All the specimens collected were below 250 ?m in length. The reduced wing surface and relatively long setae of fairyflies and many other minute flying insects likely have an aerodynamic function, perhaps to reduce turbulence and hence drag on a wing flapping at several hundred beats per second. The study of the new species was published in the open access journal Journal of Hymenoptera Research.
Almost 2000 years ago, Pliny the Elder (ca. 23 A.D.) stated "Rerum natura nusquam magis quam in minimis tota est" loosely translated as "Nature is nowhere as great as in its smallest." Lacking any means of magnification, he could not possibly have seen the intricate structure and beauty of fairyflies or other minute organisms. But his statement certainly holds true.
"If something is physically possible in living things, some individuals of at least one species, extinct or extant, will likely have achieved it. So the lower size limit, by whatever measure of size is chosen, was almost certainly already evolved -- somewhere, sometime. If we have not already found them, we must surely be close to discovering the smallest insects and other arthropods," says the lead author, John Huber from Natural Resources Canada.
Share this story on Facebook, Twitter, and Google:
Other social bookmarking and sharing tools:
Story Source:
The above story is reprinted from materials provided by Pensoft Publishers. The original story is licensed under a Creative Commons License.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- John Huber, John Noyes. A new genus and species of fairyfly, Tinkerbella nana (Hymenoptera, Mymaridae), with comments on its sister genus Kikiki, and discussion on small size limits in arthropods. Journal of Hymenoptera Research, 2013; 32 (0): 17 DOI: 10.3897/JHR.32.4663
Note: If no author is given, the source is cited instead.
Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
Source: http://feeds.sciencedaily.com/~r/sciencedaily/strange_science/~3/v_ztHAzeifM/130424103050.htm
divine mercy chaplet matt lauer albert pujols the shining mariano rivera mariano rivera jobs report
কোন মন্তব্য নেই:
একটি মন্তব্য পোস্ট করুন