Sunday, 26 July 2015

Cayman Brown Leaf Butterfly - Memphis verticordia danielana

Cayman Brown Leaf Butterfly - Memphis verticordia danielana (Witt, 1972)

Cayman Islands endemic butterfly
Family: NYMPHALIDAE - Brush-footed Butterflies.

Flicker issue #10 July/Aug. 2010 

Hanging on the Edge - The Life of the Cayman Brown Leaf Butterfly

by P. Ann van B. Stafford    pp.16-21



2008 by R.R. Askew and P.A. van B. Stafford
Memphis verticordia danielana   p.39-41

Cayman Brown Leaf butterfly resting
Cayman Brown Leaf Butterfly larvae on pseudospurs they made on 
Wild Cinnamon leaves - Croton nitens, Family: EUPHORBIACEAE, Grand Cayman, Nov. 17, 2009.
caterpillar securing its rolled leaf shelter with silk, Sept. 21, 2010
caterpillar has secured its rolled leaf shelter with silk, Sept. 22, 2010
newly emerged Cayman Brown Leaf butterfly, Feb.11, 2010

Cayman Ghost Orchid - Dendrophylax fawcettii

Cayman Islands Ghost Orchid - Dendrophylax fawcettii Rolfe
Grand Cayman endemic

Flora of the Cayman Islands by George R. Proctor 2012 p.208, Fig.75, Plate 10
 
Ironwood Forest maps and pictures 
Cayman Islands endemic Ironwood - Chionanthus caymanensis, Family OLEACEAE, is the predominant tree.
Flora of the Cayman Islands by George R. Proctor 2012 p.595, Fig.221, Plate 58


Ghost Orchid - Dendrophylax fawcettii, 
showing flowers with ghostly face and long spur,
Critically Endangered Grand Cayman endemic. 

Photo: P. Ann van B. Stafford, April 3, 2008

 Ghost Orchid - Dendrophylax fawcettii
showing stolon - elongated stem, 
on the end of which tiny new roots are growing and from which a new plant is formed.
Photo: P. Ann van B. Stafford, Aug.6, 2013.


 
Cayman's Ghost Orchid, which has no leaves or pseudobulbs,
 grows on bare rocky limestone karst pinnacles (epipetric) or 
on other plants (epiphytic).
The fragrant, night-scented flowers attract Sphinx (Hawk) Moths. 
The orchid's long spur contains nectar on which the moths feed, using their proboscis (long tongue) like a drinking straw.
The Giant Sphinx Moth -  Cocytius antaeus is the most probable pollinator of Cayman's Ghost Orchid.

Florida Ghost Orchid visited by the Giant Sphinx Moth
in south Florida’s Big Cypress National Preserve – watch the video.

Cayman Islands Ghost Orchid Dendrophylax fawcettii listed in 
100 Most Threatened Species p.40
Priceless or Worthless? 


Priceless or Worthless p.40-41

Dendrophylax fawcettii 

Cayman Islands Ghost Orchid

Text reviewed by the Orchid Specialist Group

Population size: Unknown
Range: < 1km2 ironwood Forest, George Town, Grand Cayman
Threats: Habitat destruction due to infrastructure development
Action required: Development of legislation that will facilitate the protection of the Ironwood Forest 

Known only from Grand Cayman Island, the ethereal ghost orchid (Dendrophylax fawcettii) grows on the trunks of trees and bare rocky limestone karst pinnacles. A leafless, spider-like network of roots for most of the year, delicate pale cream flowers bloom between April and June, decorating the moist forest adjoining the wetlands. Sadly, this beautiful orchid faces an uncertain future. The Ironwood Forest, the last remaining fragment of old-growth forest in George Town, is bounded on all sides by the urban development of the nation’s capital. The forest extends to just 46 acres of this, while the ghost orchids are confined to an area of only six acres.

Development of the west side of Grand Cayman has been voracious in recent years. In 2008, government plans to construct a bypass through the forest, and through the portion occupied by the orchids, provoked outcry from both the public and the owners of the privately-held Ironwood Forest land. The forest won a stay of execution thanks to the campaign by the protestors and the bypass plans were shelved. However, this temporary reprieve will be insufficient to ensure the long term survival of the enchanting ghost orchid as the Ironwood Forest continues to remain without any formal protection. The successful protection of the forest would also preserve (among numerous other native species) four additional Cayman Islands endemics of cultural as well as natural significance (Ironwood: Chionanthus caymanensis, Thatch palm: Coccothrinax proctorii, the Banana orchid: Myrmecophila thomsoniana (Cayman’s National Flower), and Hohenbergia caymanensis). The latter, a giant bromeliad nick-named “Old George”, is known naturally only from this area.



What needs to be done?

The Cayman Islands currently lack the comprehensive conservation legislation necessary to establish national protected areas, and only five per cent is under the protection of the National Trust for the Cayman Islands. With appropriate legislation, protection of the Ironwood Forest would be possible, either by purchase or through establishing management agreements with the private landowners. This would benefit the landowners by enabling them to maintain their land in its natural state, as they have done for generations. All that is required to enable this is the political will.