NO. 3558 MALLOPHAGA—ELBEL Dare 
sembles most closely C. boonsongi. The venter of the third femora 
and posterolateral margins of abdominal sternite IV-VI each have 
large thick brushes of normal setae in C. hoplai but small scattered 
brushes of normal setae in C. boonsongi. Abdominal sternite II of 
both sexes has more total setae in C. hoplai than in corresponding 
sexes of C. boonsongi. The male genitalia have endomeres with paired 
outer rims that are curved inwardly in C. hoplai but straight and 
nearly parallel in C. boonsongi. The female terminal abdominal 
tergite has on the posterior margin more than 24 setae of which 
approximately one-half are long and one-half are short in CO. hoplai 
but fewer than 22 setae of which approximately two-thirds are long 
and one-third are short in C. boonsongt. 
Material examined: 3 males and 2 females from dried material 
collected in the Philippines. 
Type host: Anthracoceros montani (Oustalet, 1880). 
Type material: Holotype male and allotype female from USNM 
skins from Sulu, and Tawitawi, Philippines, 1891, collected by 
D. C. Worchester and F. S. Bourns, REE in USNM. Paratypes: 
2 males and 1 female with same data. 
Chapinia hoplai is named for Dr. Cluff E. Hopla, Department of 
Zoology, University of Oklahoma, in appreciation for his thoughtful 
advice while directing this study. 
Chapinia boonsongi, new species 
Fiaures 11, 14, 39 
Both sexes are smaller than corresponding sexes of Chapinia tray- 
lori in all measurements except length of head (tables 1, 2). 
Male: Venter of third femora and posterolateral margins of ab- 
dominal sternites IV-VI each with small scattered brushes of normal 
setae which are not as numerous on abdominal sternite VI. Each 
lateral margin of abdominal tergites II-VI without a short seta 
between the spiracle and postspiracular seta. Abdominal sternite 
II with 48-62 total setae and one median row of setae on posterior 
margin. Terminal abdominal segments as shown in figure 11. 
Genitalia as shown in figure 14, endomeres with paired outer rims 
only. 
Female: Resembles the male except that abdominal sternite II 
has 62-70 total setae. Terminal abdominal tergite with 14-16 long 
and 4 short setae on posterior margin; abdominal sternite VIII with 
18-20 setae on posterior margin (fig. 39). Anal fringe similar to that 
of C. acutovulvata with 50-56 setae. 
Discussion: Although slightly smaller in size, Chapinia boonsongi 
resembles most closely C. hoplai. ‘The venter of the third femora 
and posterolateral margins of abdominal sternites IV-VI each have 
