OF WASHINGTON. VOLUME XIX, 1917 143 



breeches and a cap were penetrated. One is attacked through 

 clothes especially where they are stretched tightly. 



At Hobe Sound, Florida, the protective cloth covering of the 

 mules gave them a grotesque appearance which reminded one of 

 the head coverings of the mounts of the Klu-Klux Klan, there 

 being holes for the eyes but even the ears were covered. 



Tabdiuix tniu'ricoiiux occurs at Royal Palm Hammock and in 

 Hammocks on Palma Vista and on Long Key. None were noted 

 on Adam Key, an offshore key 27 miles south of Miami; a smaller 

 species was collected there. This species was occasionally seen 

 last year at Miami but none have been seen this year either at 

 Miami or in the mangrove swamps at Miami Beach. In the 

 pineland at Palma Vista and Long Key where the ground consists 

 of an eroded dirty greyish white oolitic limestone, the flies were 

 also abundant. This stone is more exposed in the pinelands 

 where areas have been burned over. In hammocks in this area 

 this rock is covered over (but not filled) with vegetation or humus 

 and leaf mold. Deep holes, i.e., "lime sinks" occur in this 

 formation, which are now dry. 



DESCRIPTION OF ROYAL PALM HAMMOCK. 



Dr. J. K. Small, of the New York Botanical Garden, has ex- 

 plored this region botanically and described conditions at Royal 

 Palm Hammock in an illustrated article in the Journal New York 

 Botanical Gardens, 17, pp. 165-172, October 1916. Small states 

 that the headwaters of the Taylor river separate the Everglade 

 Keys, in extreme southeastern peninsular Florida, into two natural 

 divisions, the Biscayne pineland and the Long Key pineland. 

 Among the forks and sloughs of this river are many "Keys" 1 or 

 islands clothed with "hammock" vegetation (a hammock is 

 dense growth mostly of broad-leaved trees and shrubs, giving 

 shade in a pineland or sawgrass "prairie"). Royal Palm Hammock 

 is the largest of these. It stands out prominently in the land- 

 scape and may be seen for a long distance (10 miles) across the 

 prairie. Many of the royal palms tower above the other hammock 

 trees. (Plate XV, fig. 2.) 



Royal Palm Hammock lies a little south of the main axis of the 

 Everglade Keys, 14 miles southwest of Homestead. The un- 

 finished Ingraham highway (plate XVI, figs. 1 and 2.) connect- 

 ing Miami and Cape Sable, Florida, runs through this hammock. 

 In building this road, rock was dredged from the side of the road 

 leaving ditches which contain fresh water, ('atfish, perch, 

 "gar" 1 and "brim" live in these ditches. 



The Everglades and the hammocks are dry at this time of the 

 year (1917); Mr. M osier states that an unusually heavy rainfall 



1 The It-nil key largely replaces the word island in southern Florida and 

 is applied to islands near the coast and also to islands in the Kverii;ladfS. 



