Occasional Papers of the Museum of Zoology 13 



Stemmiulus drymophilus, sp. nov. 

 PI. 6, Figs. 37-41 ; PI. 7, Figs. 42-45 



This is a dark-colored species, the body in general being 

 from dark brown to black ordinarily, but little lighter on the 

 sides below than above, but venter paler, often orange or 

 somewhat ferruginous ; covered part of prozonites irregularly 

 pale, fulvous, and posterior border of segments colorless, the 

 prozonites showing through. A median longitudinal dorsal 

 line of ferruginous color. Antennae dark. Legs pale brown 

 to ferruginous. Collum and head dark, a paler fulvous area 

 of triangular shape in clypeal region. 



A single large ocellus on each side. 



Gnathochilarium of male as shown in PI. 6, Fig. 37. 



Collum rounded below, the anterior angle more widely 

 rounded than the posterior one, with three long striae below 

 on each side, two above the margining one. 



Striae of segments arranged in general as usual, numerous 

 and distinct. Setigerous tubercles of last tergite as usual. 



First, second and third legs of male as shown in PI. 6, 

 Figs. 38-41, and PI. 7, Figs. 42 and 43. Ordinary setae of 

 first legs plumose. 



Gonopods of male represented in PI. 7, Figs. 44 and 45. 



Number of segments of male, 52; of female, 50 to 54. 



Length of female, near 2S mm. ; width, 2.8 mm. 



British Guiana: Labba Creek Sand Hills; July 27, 1914; 

 F. M. Gaige. One female in sandy soil of forest floor. For- 

 ested Sand Hills. Collected in rotten wood and in the earth. 

 Aug. 14 and 17, 1914; F. M. Gaige. One male (type) and 

 nine females. 



