L. Harrison and T. H. Johnston 
341 
Description of the <J. Head twice as wide as long, roughly parabolic 
in front, with squared temporal lobes and slightly concave occipital 
margin; anterior portion, in front of palps, sharply marked off from 
remainder by a pair of distinct indentations; antennary fossa very deep, 
with projecting anterior angles; and covered dorsally by a fine hyaline 
ridged plate, with its free edge serrated; the lateral margin of this plate 
completely bridges the fossa, giving an apparently continuous outline 
to the margin of the head, but there is a deep, narrow indentation before 
and behind it; temporal lobes truncated; palpi two-jointed, not four- 
j ointed, as stated in the original description; the proximal j oint cylin¬ 
drical, the distal somewhat swollen, with rounded extremity bearing 
a few short hairs; the two segments of equal length; antennae capable 
of free projection beyond the margins of the head, of five segments; 
first short, second with cylindrical base and almost spherical distal 
portion, with a few slight projections on the distal border; third pedun¬ 
culated, conical, with a concave extremity for reception of the fourth; 
fourth segment rounded and swollen, inverted distally to receive the 
irregularly conical fifth, which bears a fringe of bristles; eye dorsal, in 
Parasitology vm 22 
Fig. 2. Latumcephalum macropus. (A) Head and thorax, (B) Under side of head, 
(C) Antenna. L. lesouefi. (D) Head and thorax. (L. H. del.) 
