Navigation Links
Dracula orchids and goblin spiders

Dracula orchids tempt flies by masquerading as mushrooms. Goblin spiders lurk unseen in the world's leaf litter. The natural world is often just as haunting as the macabre costumes worn on city streets, as highlighted by two studies published this year by curators in the Division of Invertebrate Zoology at the American Museum of Natural History, David Grimaldi and Norman Platnick.


According to Grimaldi and colleagues, fruit flies (Drosophilidae) of the genus Zygothrica typically swarm on mushrooms and other rain forest fungi. But one group of orchids in the American tropics takes advantage of their preferences, duping the hapless flies into pollinating them with the scent and appearance of mushrooms. These orchids are from the genus Dracula, named so to keep the spirit of a former name, Masdevallia, when it was realized that there were separate orchid groups.

"Over 200 years ago, botanists on major Spanish expeditions to Peru named a new orchid Masdevallia because of the flower's similarity to monsterly creatures like dragons and bats," says Lorena Endara of the University of Florida in Gainesville. "Carlyle Luer, who later segregated Dracula from Masdevallia, sees these orchids as little bats flying in the forest since the flower faces down and the triangular sepals and the long sepaline tails display parallel to the ground."

"Some of the flies attracted to Dracula are new species, and I am presently working on descriptions of them," says Grimaldi. "I wanted to call this paper 'Dracula as Lord of the Flies,' but my co-authors convinced me to use the title 'Lord of the Flies: Pollination of Dracula orchids.'"

The paper, published in the orchid journal Lankesteriana, presents over 700 hours of observational data on flowers in Ecuadorian cloud forest where fruit flies were seen mating in (and hence pollinating) Dracula orchids. In addition to Endara and Grimaldi, Bitty Roy of the University of Oregon authored the paper; the research was funded by the National Science Foundation, the National Geographic Society, and other institutions.


Over the past three years, Platnick and colleagues have named or redefined the taxonomy of hundreds of new species of goblin spidersan often overlooked group named for their unusual appearance and secretive habits. Goblin spiders (members of the family Oonopidae) are extremely small: the largest is 3 millimeters in size, and most are under 2 millimeters.

"Goblins are probably the most poorly known group of spiders," says Platnick. "Their small size has made them difficult to study, but scanning electron microscopy and recent advances in digital imaging are allowing us to examine their structures in much more detail than was previously possible."

A recently published Bulletin of the American Museum of Natural History unravels the previous taxonomy of the genus Stenoonops, a group of spineless goblin spiders that have a soft abdomen and muddy-orange carapace. Fourteen of the 19 species moved to new genera (in fact, six different genera). But because 17 new species from the Caribbean were described as Stenoonops, the genus increased in numbers and now has 23 species. Two other genera are given new species as well: Longoonops and Australoonops gain five species combined.

"It isn't surprising that there are so many undescribed goblin spiders," says Platnick. "When we began the global inventory of the Oonopidae, there were only about 500 species known, a number we thought represented about 20 percent of the actual biodiversity in this group. There are a lot of species that have small rangesthe perfect group for giving us hints about the biogeographic histories of the areas they occupy, as well as for conservation, by showing us what areas are most in need of protection against habitat destruction."


Contact: Kristin Elise Phillips
American Museum of Natural History

Related biology news :

1. Orchids and fungi -- partners for life
2. Study: Crickets forewarn unborn babies about spiders
3. Male Australian redback spiders employ courtship strategies to preserve their life
4. Scary ancient spiders revealed in 3-D models, thanks to new imaging technique
5. New species of spiders discovered by UBC scientist in Papua New Guinea
6. Moving in for the winter toxic brown recluse spiders pose danger
Post Your Comments:
Related Image:
Dracula orchids and goblin spiders
(Date:11/9/2015)... , Nov. 09, 2015 ... addition of the "Global Law Enforcement ... offering. --> ) has ... Law Enforcement Biometrics Market 2015-2019" report ... and Markets ( ) has announced ...
(Date:11/2/2015)...  SRI International has been awarded a contract of ... to the National Cancer Institute (NCI) PREVENT Cancer Program ... modern testing and support facilities, and analytical instrumentation to ... studies to evaluate potential cancer prevention drugs. ... Drug Development Program is an NCI-supported pipeline to bring ...
(Date:10/29/2015)... Daon, a global leader in mobile biometric ... new version of its IdentityX Platform , IdentityX ... have already installed IdentityX v4.0 and are ... FIDO UAF certified server component as an option ... features. These customers include some of the largest and ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... The United States Golf Association ... 2016 USGA Green Section Award. Presented annually since 1961, the USGA Green Section Award ... work with turfgrass. , Clarke, of Iselin, N.J., is an extension specialist ...
(Date:11/24/2015)... Nov. 24, 2015 Halozyme Therapeutics, Inc. (NASDAQ: HALO ... New York on Wednesday, December 2 at ... , president and CEO, will provide a corporate overview. ... at 1:00 p.m. ET/10:00 a.m. PT . ... will provide a corporate overview. --> th Annual ...
(Date:11/24/2015)... ... 2015 , ... Copper is an essential micronutrient that all ... copper is also toxic to cells. With a $1.3 million award from the ... a systematic study of copper in the bacteria Pseudomonas aeruginosa (P. aeruginosa), a ...
(Date:11/24/2015)... - Aeterna Zentaris Inc. (NASDAQ:  AEZS) (TSX: AEZ) (the "Company"), ... Toronto Stock Exchange, confirms that as of the date ... that would cause the recent movements in the Company,s ... About Aeterna Zentaris Inc. . ... Zentaris is a specialty biopharmaceutical company engaged in developing ...
Breaking Biology Technology: