234 bulletin: museum of comparative zoology. 



189. Caraibodesmus insignis, sp. nov. 



Type.— M. C. Z. 4,508. Paratypcs.— M. C. Z. 4,509. Haiti: 

 Furcy. W. M. Mann. 



This species is strikingly colored. The prozonites are black above 

 and down the sides to the level of the legs. The metazonites in 

 general are red excepting along the anterior border of all, which is 

 blackish, while in the middle and posterior region of body the black 

 also is present along the caudal border and often extends forward as a 

 lunate or semicircular area. Last tergite black across the base, 

 elsewhere reddish. Legs dilute brown to yellow. Antennae, in full 

 color, chestnut. Head black above; immediately below antennae red 

 in a transverse area, while the labrum is fla^'Ous. 



A single serration on lateral margin of keels from second to fifth, 

 or a slight one also on sixth, none on the others. The entire surface 

 of metazonites densely tubercular and nodular, the tubercles being 

 of varying sizes and form but man}- of them extended longitudinally; 

 a series of longer low ridge-like, elevations along the caudal margin, 

 of which one or two on each side near base of keel are largest and 

 project freely caudad as short obtuse teeth. In some cases the ridge- 

 like folds are traceable forward nearly entirely or else entirely across 

 the metazonite. 



Length of type (female), near 26 mm. ; width, 3.6 mm. 



190. Caraibodesmus pellus, sp. nov. 



Type — M. C. Z. 4,510. Jamaica: Liguanea Plain, 1911. C. T. 

 Brues. 



Very dark in color above, the metazonites dark chocolate, the pro- 

 zonites more blackish, the keels above paler. Entire head blackish, 

 the labrum above slightly lighter. Legs yellow. Antennae dark 

 like the head. Venter plae as usual. 



In its dark color resembling C. mammahis; but the sculpturing of 

 the plates much more extensive. Along border of metazonites caudad 

 of the sulcus in the anterior six, in the others seven or eight, areas are 

 outlined, each of which is strongly granulate or finely tubercular and 

 bears one larger tubercle projecting caudad as a prominent tooth. 

 In the anterior region a row of four densely finely tubercular areas is 

 present, on each a larger rounded tubercle; while between the an- 



