282 PROCEEDINGS OF THE ACADEMY OF [April, 



posterior section slightly constricted, the margin truncate. Ante- 

 rior femora stout and heavy, the inner margin spiued very much 

 as in L. trigonalls, the apical spines being alternately large and 

 small, except the two terminal spines which are large with a 

 diastema between them; tibite armed with seven spines; tarsus with 

 the first joint (metatarsus) about equaling the otlier four. iMedian 

 and posterior limbs slender, the apical spines equally visible on 

 each; the first tarsal joint (metatarsus) of tJie median pairsh'ghtly 

 shorter than the other segments. Abdomen depressed, with a 

 central carinal fold, which is more elevated posteriorly than ante- 

 riorly on each segment, the four anterior segments having the ]:)0s- 

 terior margin centrally emarginate, while the others have the same 

 truncate. Subgenital plate somewhat produced, broadly rounded, 

 with minute styles. 



General color dull wood brown, irregularly sprinkled with 

 blackish spots. The occiput bears a transverse line of grayish, 

 which is visibly continued to a greater or less extent upon the eyes. 

 The upper surface of the abdomen is tinged with yelloAvish, while 

 the limbs are obscured with blackish brown. 



Measurements. 



Length of body, 15.5 mm. 



Width across eyes, 3 mm. 



Length of pronotum, 3.25 mm. 



Width of pronotum, 2.25 mm. 



Length of anterior femora, 4.00 mm. 



Sphodropoda rudolfae n. sp. 



Type, one female; near southern end of Lake Rudolf, western 

 Gallaland, September 1, 1895. 



Allied to S. trhnacula Saussure, but differing in the shape of the 

 anterior portion of the pronotum and the general thickness of the 

 shaft, besides the much shorter tegmina. 



Size smaller than S. irhnucxda, but very stoutly built. Head 

 rather long, the facial aspect broader than deep; occiput slightly 

 arcuate ; facial shield as wide as deep, superiorly obtuse angulate, 

 the extreme tip truncate, centrally with a pair of very obscure 

 carinse; eyes rather large, globose, the lower margin somewhat pro- 

 duced. Pronotum over twice as long as the greatest width which is 

 anterior to the middle ; the shaft bearing a prominent median carina}, 



