chamberlin: west Indian chilopoda and diplopoda. 225 



the lateral margins of the keels yellow and the caudal margin of the 

 metazonites narrowly margined with yellow, the light stripe widening 

 at the middle and extending forward and also caudad along the follow- 

 ing prozonite. The black of prozonite extends down the sides nearly 

 to the legs, the pleurae appearing dark, often black like dorsum. The 

 venter, legs, and antennae yellow with the legs and antennae decidedly 

 pinkish over the distal joints. Labrum and lower sides of head also 

 pale and of pinkish tinge. 



Length of type, a male, 31 mm.; width, 4.1 mm. 



175. Amphelictogon rubripes, sp. nov. 



Tijpe. — M. C. Z. 4,485. Cuba: Oriente Province, Belona, June 

 16, 1914. C. T. Ramsden. 



The general appearance is strongly characterized by the red legs 

 and antennae, the red being much deeper than in A. cubanus, and the 

 presence of a median longitudinal stripe of yellow which is continuous 

 from the second tergite to the caudal end of the body and in some also 

 extends across the first plate. The first tergite is marked with a 

 yellow spot on the median line in front or the mark may cross to the 

 caudal margin in dumb-bell form. The lateral borders of the keels 

 are also yellow. The dorsum elsewhere black. Head black except- 

 ing the labrum and lower sides which are yellow of a slight pinkish 

 tinge. Legs yellow proximally. Face with numerous long hairs 

 below level of antennae. 



The dorsal surface of the tergites smooth and shining, a few obscure 

 granules toward each side, in the posterior somites densely finely 

 granular; with no polygonal area, like those of A. cubanus, at all 

 indicated. Excepting the posterior ones, the caudal corners of keels 

 but slightly produced, narrowly rounded. Caudal margin of keel wdth 

 a slight obtusely angular projection, the margin there with a nodular 

 thickening; sometimes a second smaller nodular thickening at ex- 

 treme mesal end. 



The gonopods in the male have the typical general structure. The 

 basal loop of the style brings the free portion over from above and at 

 the anterior edge of the loop, the free portion strongh' curving sig- 

 moidally, the tip running cephalad. The terminal blade of the 

 dorsal branch curves in a semicircle, smaller than usual, with the apex 

 extending ectad close to the branch below origin of the blade. 



Length, (female paratype), 42 mm.; width, 5.5 mm. 



Mr. C. T. Ramsden, also collected this species in the Oriente 

 Province at Ojo de Agua de Filipinas. 



