250 PROCEEDINGS OF THE ACADEMY OF [JunC;. 



Fig. 7. — Labia rotundata Scudder. 9 , type. Mexico. Dorsal outline of 

 ultimate dorsal abdominal segment, pygidium and forceps.^' (X 8). 



Fig. 8. — Prolabia ascensionis new species. 6^, type. Ascension Island, 

 South Atlantic. Dorsal outline. (X 8). 



Fig. 9. — Prolabia ascensionis new species. 9 , allotype. Ascension Island, 

 South Atlantic. Dorsal outline of ultimate dorsal abdominal segment, 

 pygidium and forceps. (X 7.4). 



Fig. 10.— Litocosmia roraimce new species, cf, type. Ireng River to 

 Roraima, Brazil. Dorsal outline. (X 4.5). 



Fig. 11. — Litocosmia roraimce new species, cf, type. Ireng River to 

 Roraima, Brazil. Ventral outline of: — A. Penultimate Ventral Abdomi- 

 nal Segment. B. Portions of Ultimate Dorsal Abdominal vSegment 

 folded over Subgenital Plate. C. One of the halves of the cleft Sub- 

 genital Plate. Mesad is the ventral surface of the pygidium, between 

 the bases of the forceps. 



2' This figure is given to show the widely separated type of forceps, found also 

 in both nodiftr and arcuata. 



