68 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Ficures 27-34.—The lophocerus and acutovulvata species-groups. Female terminal abdomi- 
nal segments, dorsal-ventral view: 27, Chapinia lophocerus (Bedford); 29, C. bucerotis 
(Kellogg); 31, C. robusta Ewing; 33, C. clayae, new species, allotype. Female anal 
fringes, ventral view: 28, C. lophocerus (Bedford); 30, C. bucerotis (Kellogg); 32, C. 
robusta Ewing; 34, C. clayae, new species, allotype. (h=sclerital hooks.) 
