440 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



margins of segment, with a median vertical long spine. Sixth tergum 

 narrower apically, posterior angles produced laterally into short broad 

 spines with a median short vertical spine; apical half of lateral margin 

 strongly depressed. Seventh tergum subequal to sixth, basal half 

 slanting downward to horizontal apical half; caudal margin straight 

 (fig. 69) . Eighth tergum with basal margin roundly produced, apical 

 margin with shallow median indentation, with longitudinal median 

 depression, on either side of this depression roundly elevated, trans- 

 versely corrugate. Basal half of ninth tergum transversely corrugate; 

 apical half with lateral margins strongly elevated and with a shorter 

 small median longitudinal ridge, area between these ridges smooth 

 and shiny. Seventh sternum longer than sixth, with a small round 

 median notch. Hind margins of remaining sterna straight. 



Overall body length 24.0 mm. 



This is the only species of Ghilianella with such long spines on the 

 head, thorax, and abdomen. 



Types: Holot3^pe, male, St. Thomas Baths, Jamaica, March 29, 

 1937, collector Chester Rays, 500 ft. elevation, MUM. Allotype, 

 female, St. Thomas Baths, Jamaica, collector Mrs. Swainson, IJ. 

 Paratype, male, same data as holotype, author's collection. Paratype, 

 male, St. Andrews, Jamaica, October 1955, collector T. H. Farr, 

 USNM. One female paratype, St. Thomas, Jamaica, IJ. 



Ghilianella spinicaudata, new species 



Figures 70, 76, 78, 89, 114 



Female: Head, thorax, and legs light reddish brown. Tibiae either 

 without or each with two basal brownish bands. Fust antennal 

 segment dark brown, with eight or nine narrow yellowish annuli, 

 second segment dark brown, third and fourth grayish on account of 

 the pilosity. Abdomen dark brown to blackish. 



Body with very scarce short appressed pilosity. 



Head as in figure 7G; granulose, granulations small. Interantennal 

 spine long, slightly pointing upward, straight. 



Thoracic segments very sparsely granulate; lengths of segments: 

 3.8, 2.7, 1.3 mm. Prothorax as in figure 78. Claws of foretarsi two, 

 the inner very short, closely appressed to base of outer. Armature of 

 forefemur with inner row consisting of alternating fine setae and short 

 spines, the setae arising from wartlike bases. Outer row of spines 

 similarly arranged but with more spines; with five or six longer spines 

 forming a third row more to the outside, and four still longer spines 

 forming a fourth row on the outside. No other species has the spines 

 of the armature of the forefemur arranged in four rows. First spine 

 of forefemur slightly curved, at slightly over its own length from tip 

 of trochanter; basal half of forefemur gradually thickened to first spine. 



