222 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



[vol. 50 



but is continuous with the epistome, which is produced on the ven- 

 tral side in a small tubercular-like convexity. The first pair of 

 antennje are small and inconspicuous. The second pair have the 

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

 is about as long- as the second ; the fourth is nearly twice as long- 

 as the third ; the fifth is a little longer than the fourth. The flagel- 

 lum is composed of three articles, the middle one of which is some- 

 what shorter than the other two. 



Fig. 50. — Mcsarmadillo flavimarginatus , sp. nov. General figure. X 3 2/; 

 Fig. 51. — Mesarmadillo flavimarginatus, sp. nov. Coxopodite of first thoracic 



segment (dorsal view). 

 Fig. 52. — Mcsarmadillo flavimarginatus, sp. nov. 



segment (lateral viewV 

 Fig. 53. — Mesarmadillo flavimarginatus , sp. nov. 



segment (ventral view). 

 Fig. 54. — Mesarmadillo flavimarginatus, sp. nov. Last three segments of abdo- 

 men with uropoda. X 9i. 

 Fig. 55. — Mesarmadillo flavimarginatus, sp. nov. Abdomen with uropoda (ven- 

 tral view). X gi. 



X oi. 



Coxopodite of first thoracic 

 X oi. 



Coxopodite of first thoracic 

 X pi. 



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

 of the others, which are subequal. The first segment is 8 mm. in 

 length. The second is 4 mm. long. The coxopodites of the first 

 segment form a rather wide marginal border, not extending quite 

 to the post-lateral angles of the segment. A longitudinal groove 

 separates them from the dorsal portion of the segment. There is 

 no lateral groove. They are cleft posteriorly by a fissure not very 



