WEST INDIAN CENTIPEDES — CKABILL 185 



(1) First maxillae with loug lappets. (2) Second maxillae with pro- 

 nounced statuminia (note I, p. 194), a poreopening being medial to the 

 statuminia. (3) Second maxiUary coxosternites joined by a rather 

 broad but flims}^, membranous, medially very weakly areolate isthmus. 

 There is no medial, dark, well sclerotized, knoblike anterior projection 

 (the medial chitinous projection of Chamberlin) as there is in Nesi- 

 diphilus; nor is there encountered the thin, rather blisterlike isthmus 

 of the more northern Arctogeophilus. (4) PostmaxiUary sclerites are 

 very small, strictly posterior in position. In certain other genera, 

 such as Chamberlin's Nesidiphilus and Sidurodes, the sclerites are 

 broad and extend well up to or toward the poreopening. (5) Labrum 

 tripartite, the midpiece not at all overlapped by or dorsoposterior to 

 the sidepieces. (6) Ultimate tarsus of two articles. (7) Ultimate 

 pretarsus reportedly absent (Chamberlin, 1915, p. 523) but probabl}^, 

 as in bredini, represented in some or in aU by a minute, terminal, 

 acicular bristle or point. 



The new species differs strikingly from all others in its possession 

 on each of the more anterior body sternites of a single, undivided, 

 roughly diamond-shaped, subcentral pore field. In all others this 

 pore field assumes the shape of a transverse band. L. bredini seems 

 most Hke L. haitiensis Chamberlin ; each has a pedal number in the high 

 fifties and a semilate prehensorial blade. The difference in pore fields 

 shape (diamond-shaped to subtriangular in bredini but bandlike in 

 haitiensis) should serve to separate the two quite readily. 



Holotype: Female, USNM 2521, British West Indies, Tortola, Sea 

 Cow Bay, March 26, 1958, J. F. G. Clarke, collector, Berlese samples 

 of beach drift. 



Length 21 mm. Pedal segments 59. Color of head, antennae, 

 prehensorial segment light brownish j^ellow; pleurites, legs, sternites, 

 tergites very pale yellowish to translucent or colorless. 



Antennae: Length 2.7 mm. Each article much longer than wdde; 

 the whole essentially filiform. Basal six articles each with two distinct 

 circlets of long setae, otherwise very sparsely setose; remaining articles 

 each with progressively shorter but more numerous setae. Ultimate 

 article about 30 percent longer than the penultimate; the ultimate 

 subapically ^^ith 2 shallow elongate depressions on opposing sides, each 

 depression containing spatulate h3'aline setae, 90° from each and at 

 the same level an elongate patch of 8-15 hyaline spatulate setae 

 (i.e., with 4 patches of setae in all, each 90° from the next). 



Cephalic plate: Length 0.75 mm., gi-eatest width 0.48 mm. Elon- 

 gate, sides subparallel ; anteriorly and posteriorly narrowed. Sparsely 

 setose, with a few very long, conspicuous fringing setae. Frontal 

 sulcus appears (as seen by transmitted light) as a curved strip of 

 much coarser, more translucent areolation; with two prominent 



