12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
should not be used until more is known about the relationships between 
populations in this superfamily. 
The members of the lophocerus species-group are arranged according 
to the phylogeny of their hosts, since this order agrees with the morpho- 
logical similarities or the parasites. 
Chapinia fasciati, new species 
Fiegure 1 
Male: Smaller than Chapinia robusta in all measurements; smaller 
than CO. lophocerus in all measurements except width of metathorax 
(table 1). Venter of third femora and posterolateral margins of 
abdominal sternites IV-VI each with small scattered brushes of 
normal setae. Each lateral margin of abdominal tergites II-VI with 
a short seta between the spiracle and postspiracular seta. Abdominal 
sternite II with 32-42 total setae and one median row of setae on 
posterior margin. ‘Terminal abdominal segments similar to those of 
C. lophocerus. Genitalia as shown in figure 1, each lateral horn with 
two rounded posterior points. 
Female: Larger than Chapinia robusta in all measurements except 
width of metathorax; smaller than C. lophocerus in all measurements 
except total length and width of prothorax (table 2). Resembles the 
male except that abdominal sternite II has 54 total setae. Terminal 
abdominal segments similar to those of C. lophocerus. Ventral 
sclerite between vulva and anus elevated medially between sclerital 
hooks. Anal fringe with 72-86 setae. 
Discussion: Chapinia fasciati resembles most closely C. lophocerus. 
The male genitalia have each lateral horn possessing two posterior 
points which are rounded in C. fasciati but sharp in C. lophocerus. 
The ventral sclerite between female vulva and anus is elevated 
medially between the sclerital hooks in C. fasciati but not elevated in 
C. lophocerus. The female anal fringe has more than 70 setae in 
C. fasciatt but fewer than 58 setae in C. lophocerus. 
Material examined: 27 males and 34 females from fresh and dried 
material collected in the Ethiopian region. 
Type host: Tockus fasciatus fasciatus (Shaw, 1811). 
Type material: Holotype male and allotype female from Eden, 
French Cameroons, Africa, collected by J. Mouchet, BMNH. Para- 
types: 18 males and 15 females from French Cameroons, Africa, 
collected by J. Mouchet, BMNH; 1 male from Kasongo, Belgian 
Congo, Africa, Nov. 13, 1959, collected by P. L. G. Benuit, JT; 
3 males and 10 females from CNHM skins from Entebbe, Uganda, 
Africa, 1895-1916, collected by F. J. Jackson and others, REE; 2 
males and 1 female from CNHM skins from Bitya, Cameroons, 
