238 bulletin: museum of comparative zoology. 



201. CUBODESMUS RAMSDENI, sp. nOV. 



Type — M. C. Z. 4,513. Paratypes.— M. C. Z. 4,514. Cuba: 

 Guantanamo, San Carlos on Rio Seco. in rotten wood, April 22, 1914. 

 C. T. Ramsden. 



In this form the upper (anterior) branch of the gonopods widens a 

 little near its middle and then narrows strongly distad; midway be- 

 tween widest median region and the apex it is geniculate, the distal 

 arm moderately curving, acute. The lower or caudal branch distad 

 of the short stout and subcylindrical femoral division is evenly curved, 

 the convexity being ectad; the apical region, flattened and slightly 

 twisted, bears three slender and short processes, an erect, only slightly 

 curved, acute median distal one, below this a stouter and larger, 

 weakly sigmoidally flexed, and also suberect one and above it a process 

 that curves caudad of mesad, is of uniform width throughout and is 

 rounded at its apex. 



The dorsum is chestnut with the keels yellow. In some a darker 

 median dorsal line is manifest in the posterior region. Head chest- 

 nut excepting labrum and lower sides of face which are yellow. Venter 

 and entire pleural region, as well as the legs and antennae, yellow. 



The dorsum is smooth. Keels high, the posterior area somewhat 

 more depressed than the anterior and median ones. Posterior angles 

 of keels broad, the first ones subrectangular, the others slightly pro- 

 duced excepting the most caudal ones which are more extended as 

 usual; those of the nineteenth somite, short, submucronate, much 

 smaller than those of the eighteenth, those of the seventeenth largest. 

 Caudal margins of keels smooth throughout. The lateral margins 

 also wholly smooth excepting in the fourth to ninth somites inclusive 

 on each lateral margin of which there is a small serration toward the 

 anterior corner. 



Tip of anal tergite conspicuously decurved. 



The genital cones of the second coxae in the male are low and 

 rounded. The sternite between the third legs bears a pair of low 

 rounded eminences each of which bears a small slender, mammilliform 

 process. The next sternite bears four low, rounded eminences, and 

 the succeeding one two. Other sternites without processes. 



Length (male type), about 40 mm. ; width, 6 mm. 



