164 
(Phenicopterus ruber, Temminck), which had been but a 
short time living in the gardens. I could only find a single 
individual of the parasite, a female, although I examined the 
surface carefully, By its elongate body, its absence of tra- 
beculz, long legs, obtusely setaceous antennz, and posterior 
notch, it is plainly a Lipeurus, and belongs to the section of the 
genus characterised by the possession of an elongated head. 
Its specific characters may be summarised thus :—Glstening 
white; depressed head; elongated triangular labrum, covered 
with rows of depressed, rounded, or lenticular depressions, 
arranged quincuncially in seven or eight series ; posterior 
clypeus with two lateral depressed lines, concave internally ; 
antennz with the second joint longest; prothorax quadri- 
lateral ; first pair of legs short, with a wart-like black dot at 
the posterior part of the extremity of the femur; abdomen 
margined with irregular pigment masses, in the form of a 
slightly sinuated and occasionally interrupted line, the last 
segment being immaculate and notched. The specimen 
being a female, has simple antennary joints, the fifth being 
very short and obtuse. The length of the entire insect is a 
line and a half, and its greatest breadth is about the one 
eighth of this. . 
The only other flamingo parasite that I am acquainted 
with is the Lipeurus subsignatus of Nitasch, from the Pheni- 
copterus antiquorum, Temm., referred to by Giebel, in his 
‘Zeitschrift fiir die Gesammten Naturwissenschaiten,’ vol. 
XXvili, p. 384; but this has not got the dotted labrum, nor 
the sinuated abdominal marginal pigment-line. It differs 
from the L. squalidus of the duck in these respects also, and 
in not having the regular quadrilateral markings on the side 
of the abdomen. 
2. Colpocephalum marginatum. 
This specimen was obtained from the feathers of the 
Ardea comata of the South of Europe, and it seems to me to 
come close to C. importunum, Nitzasch, of the Ardea cinerea ; 
to C. nyctarde, Denny, of the Nycticorar ardeola; and to 
C. vittatum, Rudow, of the Ardea ralloides (‘ Zeitsch. fir 
Gesammt. Nat.,’ vol. xxvii, p. 469). 
My specimens are 1-11th of an inch long, of a deep chest- 
nut-brown colour, smooth on the surface, and much darker 
along the margin than inthe middle. Head large, flat ; ante- 
rior margin of labrum plane, posterior border of occiput 
concave, temporal lobes large rounded, lateral margin of 
clypeus deeply sinuated, orbital sinus deep and acute, an- 
tenn small, obscure, clypeus with two dark sepia-brown 
