lo Unhcrsity of Michigan 



nearly straight and is smaller in comparison with the preced- 

 ing tergite. (PI. 4, Fig. 29.) 



Number of segments, 28. 



Length, about 3 mm. ; width, .7 mm. 



British Guiana : Sand Hill Forest, headwaters of Hubi- 

 dibu Creek; Sept. i, 1914; F. M. Gaige. One specimen taken 

 in sandy soil. Holotype, M. C. Z., 5,053. 



Stemmiulidai-: 



Stemmiulus major Carl 



Stenunatohihis major Carl, Mem. Soc. Sci. Xat. de Xeuchatel, 1914. 

 5, p. 851, Figs. 24, 26-29, 55-61. 



Colombia: San Lorenzo, 2,000 feet; July 14, 1913. One 

 female among fallen leaves. 



Also at 3,000 feet; July 16, 1913. One female under leaves. 



Stemmiulus craurus, sp. nov. 

 PI. 5, Figs. 30-34; Fl- '5, Figs. 35-36 



Body in general blackish above with a narrow middorsal 

 pale line which may be in part obscure ; venter and lower part 

 of sides obscure fulvous to fulvo-ferruginous. Collum and 

 vertex of head with a network of dark Hues over a fulvous 

 background. Head obscure fulvous below and somewhat 

 darker between eyes and antennae. Antennae blackish and 

 legs fulvous. 



Sixth joint of antennae twice, or a little more, as long as 

 wide. A single large ocellus on each side. 



Gnathochilarinm of male a^ shown in 1M. 5. Fig. 30: of 

 female as in PI. 5, Fig. 31. 



Collum angular below ; three striae, on each side of which 

 only the uppermost in the male is distinct in side view, the 



