58 A Monograph of Culicidae. 
fifty eggs, arranged side by side or in radiating groups of three 
or more together, at the edge of the water. The ova appeared 
to resemble in every respect the Anopheles ova described and 
figured in the Report of the Malaria Expedition to Nigeria, 
Pt. I.—the ‘floats,’ ‘sole-shaped’ area on the upper surface, 
spiral rupture of egg-case, etc. The hexagonal markings on the 
under surface become plainly visible after prolonged maceration 
in strong potash solution. On the 4th of April the larvae 
hatched out; a good many perished in the early stages. In 
floating and habits-generally they seem to resemble Anopheles 

Fig. 35. 
Palmate hair of larva (C. Grabhamit). 
(Original.) 

Fig. 34. 
Cycloleppteron Grabhamit. 
Theobald. 
Thoracic and abdominal 
ornamentation of larva 
(Dr. Grabham). 
larvae precisely. The colour of the adult larvae varied greatly, 
dull olive green and bluish-gray shades prevailed. The commonest 
type of ornamentation is as in the diagram (fig. 34). A roughly 
V-shaped mark on the thorax with its apex completed on the 
first abdominal segment. A snowy-white shield-shaped mark 
with five dark spots on it on the second and third segments, a 
small triangular mark on the fourth segment, and on the fifth 
segment an oval mark with an irregular dark area in the 
centre. The brightest of all these marks was that on the third 
segment.” 
