26 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
sternite II with 34 total setae and one median row of setae on posterior 
margin. Terminal abdominal segments similar to those of C. acuto- 
vulvata. Genitalia as shown in figure 12, endomeres with large inner 
plate and paired outer rims. 
Female: Slightly smaller than Chapinia traylori in all measurements 
except length of head (table 2). Resembles the male except that 
abdominal sternite II has 64 total setae. Terminal abdominal tergite 
with 20 long and 4 short setae on posterior margin; abdominal sternite 
VIII with 24 long and 12 short setae on posterior margin (fig. 37). 
Anal fringe similar to that of C. acutovulvata with 50 setae. 
Discussion: Chapinia malayensis resembles most closely C. acuto- 
vulvata. Abdominal sternite II of both sexes has fewer total setae in 
C. malayensis than in corresponding sexes of C. acutovulvata. Male 
genitalia have endomeres possessing a large inner plate with paired 
lateral flanges and a central terminal point in C. malayensis but a 
small inner plate in C. acutovulvata. The female terminal abdominal 
tergite has on the posterior margin at most 24 setae in C. malayensis 
but at least 26 setae in C. acutovulvata. The female abdominal 
sternite VIII has on the posterior margin more than 34 setae in C. 
malayensis but fewer than 32 setae in C. acutovulvata. 
Material examined: 1 male and 1 female from fresh material 
collected in Borneo. 
Type host: Anthracoceros malayanus (Raffles, 1822). 
Type material: Holotype male and allotype female from Borneo, 
Meinertzhagen 10910, BMNH. 
Chapinia hoplai, new species 
Ficures 13, 38 
Both sexes are slightly smaller than corresponding sexes of Chapinia 
traylori 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 large thick brushes of normal 
setae. Each lateral margin of abdominal tergites II-VI without a 
short seta between the spiracle and postspiracular seta. Abdominal 
sternite II with 66-68 total setae and one median row of setae on 
posterior margin. ‘Terminal abdominal segments similar to those of 
C. acutovulvata. Genitalia as shown in figure 13, endomeres with 
paired outer rims only. 
Female: Resembles the male except that abdominal sternite II has 
80-88 total setae. Terminal abdominal tergite with 14 long and 12 
short setae on posterior margin; abdominal sternite VIII with 16 
long and 4 short setae on posterior margin (fig. 38). Anal fringe 
similar to that of C. acutovulvata with 50-54 setae. 
Discussion: Although slightly larger in size, Chapinia hoplai re- 
