450 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



terminal segment of the abdomen, the shape of the basal article of the 

 uropoda, and the form and position of the inner branch. It differs, 

 however, from that genus in having three articles instead of two to 

 the nagellum of the second antennas, in the form and position of the 

 outer branch of the uropoda, which is inserted in a notch about 

 the middle of the inner lateral margin of the basal article instead of 

 at the inner post-lateral angle of that article as in Synarmadillo. 

 The terminal abdominal segment is also shorter than in Synarmadillo, 

 exposing more of the inner branches of the uropoda. 



This species is named after Mr. E. A. Schwarz, custodian of Cole- 

 optera in the U. S. National Museum, who collected the specimen. 



