Nyeteribiide, parasitic Diptera, from Ceylon. 425 
y » 2 if , ‘ 
bare patch.* But since out of the 43 Ceylon females, 
6 are abnormal with respect to these tubercles ; and since 
4 out of those 6 exhibit the condition found in the 
Maldive female; it is possible that the latter is merely 
a specimen of the 5-tuberculated variety of C. sykeso. 
It seems that some writers, judging from Westwood’s 
figures t of C. sykesi, have supposed that there are 3 
large tubercles on either side of the abdomen, in addition 
to the 4 in the middle of the dorsal surface. Kolenati, 
in his writings on the subject (Hore Soc. ent. Ross., I, 
pp. 1-109), speaks (p. 85) of the female C. sykesi as 
having 10 large tubercles, of which 4 are in the middle 
of the dorsal surface of the abdomen, while the other 6 
‘drei jederseits am Aussenrande stehen.” Enderlein also, 
in describing the female from the Maldives, states that 
“Die in der Westwood’schen Figur bei C. sykesi angege- 
benen seitlichen grdsseren Dornenrudimenten fehlen 
vorliegendem Thier.” But Westwood’s type of C. sykest 
has no large lateral tubercles on the abdomen, neither 
have the Ceylon females. Moreover Westwood (op. cit., 
p. 283) only says of the abdomen that “its coriaceous 
part... is covered ... with minute shining black 
tubercles, 4 of which, on the centre of the abdomen, are 
of a larger size.” But though he makes no mention of 
3 large tubercles on either side, yet he has in his figures 
drawn the 3 spiracles of each side in such a manner that 
they exactly resemble the large tubercles in the centre. 
This is the case in his Figs. 3, 17, and 18 (op. cit.). He 
says of the abdomen that “at each side above, between 
the basal corneous articulation and the setose terminal 
portion, 3 circular spiracles are to be observed.” Again, 
in his Fig. 20, similar objects are shown, and these in the 
explanation of the figures are called spiracles (“ Fig. 20, 
. showing ... the two posterior pairs of spiracles.” 
p. 293, op. cit.). 
Now Kolenati, at the time of writing his paper referred 
to above, appears not to have seen actual specimens of 
C. sykesi, but states (op. cit., p. 82) with regard to his 
figures of that species, that they are “ Alles copien aus 
Westwood’s On Nycteribia” (that is, Westwood’s paper 
referred to here). It appears to be almost certain, there- 
fore, that Westwood’s figuring of the spiracles has given 
* op. cit., p. 176, Text-fig. 1. 
T op. cit. 
