NO. 3558 MALLOPHAGA—ELBEL 65 
Figures 15-22.—The acutovulvata and hirta species-groups. Male genitalia, ventral view: 
15, Chapinia wenzeli, new species, holotype; 16, C. blakei, new species, holotype; 17, 
C. traylori, new species, holotype; 18, C. muesebecki, new species, holotype; 19, C. hirta 
(Rudow), neotype; 20, C. lydae, new species, holotype. Male terminal abdominal seg- 
ments, dorsal-ventral view: 21, C. muesebecki, new species, holotype; 22, C. hirta (Rudow), 
neotype. (s=sclerite of genital sac.) 
