Thysanura and Machilida of the Lesser Antilles and Northern South America

The present study is based on material obtained by Dr. P. WAGENAAR HUMMELINCK on his various trips to the Caribbean, the greater part of which was received from the Zoölogisch Museum at Amsterdam, where the types and most of the other specimens are deposited. Mr. R. H. COBBEN, entomologist of the Landbouwhogeschool at Wageningen, who collected on the Netherlands Antilles in 1956, was also kind enough to let me have his material for study. The following species are now known to occur in the area under consideration