246 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



[vol. 50 



ETHELUMORIS PARALLELUS, sp. nov. 



Body ovate, extremely convex, contractile into a ball. Surface, 

 with the exception of the abdomen, which is smooth, covered with 

 rugosities, rounded on the head in the form of low tubercles and 

 elongated on the thoracic segments in the form of parallel ridges. 

 Color, light brown, with wavy lines of yellow on either side of the 

 median stripe. 



Head is wider than long, 2 mm. : 4^2 mm., with the front straight 

 and margined. Epistome with a shield-like convexity. First pair 



Fig. 112. — Ethelumoris parallelus, sp. nov. General figure. X 7J/2. 

 Fig. 113. — Ethelumoris parallelus, sp. nov. Coxopodite of first thoracic seg- 

 ment and lateral part of second segment (lateral view). X 14. 

 Fig. 114. — Ethelumoris parallelus, sp. nov. Coxopodite of first thoracic segment 



(ventral view). X 14. 

 Fig. 115. — Ethelumoris parallelus, sp. nov. Abdomen with uropoda (dorsal 



view). X 14. 

 Fig. 116. — Ethelumoris parallelus, sp. nov. Abdomen with uropoda (ventral 



side). X 29. 



of antennae small and inconspicuous. Second pair with the first 

 article short ; the second article is twice as long as the first ; the 

 third is as long as the second ; the fourth is equal in length to the 

 third ; the fifth is also short and not perceptibly longer than the 

 fourth. The flagellum is composed of two articles, the second of 

 which is about twice as long as the first. 



The first segment of the thorax is about twice as long as any 

 of the following segments, which are subequal. The first segment 

 is about 3 mm. long. Each of the following segments is i l / 2 mm. 

 in length. The coxopodites of the first segment are placed on the 



