10 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol.61. 



In this light grey form the tarsi are quite uniformly orange- 

 colored and there is typically a middorsal series of red spots. The 

 dorsal spots are darker, brown or blackish, instead of reddish, and 

 may be M'holly absent. 



Genus CUBOBOLUS Chamberlin. 



This genus embraces a group of mostly small spiroboloids closely 

 related to RKinocricus, into which it may have to be withdrawn. It 

 is retained, for the present, for the West Indian RhinocTicus-like 

 species that lack scobina. A ne\Y species is here added to the group. 

 The following key will aid in placing the species: 



n} Body with a lougitudinal light band along each side and one each side of 



middorsal line C. cinchonanus, new species. 



w.* Body with no longitudinal licrht bands. 



h} Transverse sulcus of segments complete and distinct dorsally. 

 c' Anal tergite acutely angled ; black, with a median dorsal series of pale 



spots C. ramagei (Pocock). 



c." Anal tergite rounded behind; body with no median dorsal series of p;ile 

 spots. 

 d^ Area of segments behind the transverse sulcus widely and completely 



flavous C, mandevillei (Pocock). 



rf.^ Area of segments behind the transverse sulcus dark chestnut. 



C. beliganus Chamberlin. 

 h.' Transverse sulcus of segments obsolete or very weak dorsally. 

 c} Collum with border weakly or obscurely marginate. 



d.^ Segments 39 or 40; length under 30 mm. (color black excepting a fine 



pale caudal border) C. townsendi Pocock. 



d^^ Segments 44 to 47 ; length 45 mm. or more. 



e.^ Second tergite flattened below ; light band of segments extending to 



suture C. gossei (Pocock). 



e.'' Second tergite not flattened below; light band very narrow dor- 

 sally, much short of attaining the suture. 



C. rarior (Chamberlin). 



CUBOBOLUS CINCHONANUS. new species. 



Plate 3, figs. 10-11. 



A small form characterized by a peculiar color pattern. Along the 

 dorsum a light band traversed on the median line by a series of black 

 marks consisting of a T-shaped figure with a dot above it on each 

 segment, the longitudinal piece of the T thick. A narrow pale stripe 

 along each at the middle of the height. Legs yellow. Antennae 

 brown. 



Collum with a margining sulcus below, this curving upward a 

 short distance at its anterior end where it is deepest. Surpassed by 

 the second tergite below. 



