342 
Mallophaga from Marsupials 
posterior angle of fossa, small, with, a double pigment spot; protected 
dorsally by a chitinous tubercle set just behind it, which bears in a 
socket on its summit a stout skittle-shaped spine; general colour pale 
yellowish, with strong chitinisations round the greater part of its margin, 
the relations of which are best seen in the figure; at the base of the palps 
is a strong chitinous support, which ends ventrally in a prominent tooth- 
like structure; immediately in front of the clypeal suture is a small 
rounded dorsal prominence; from the suture a strong chitinous band 
extends laterally, following the inner margin of the antennary fossa, 
thence round the temporal lobes and along the occiput; chitinisation 
very strong at the posterior lateral angles, with strong, tooth-like 
ventral projection; a similar, but weaker projection ventrally behind 
the insertion of the antenna; chi tin band narrower along occiput; 
delicate hairs scattered round anterior part of head; a strong pustulated 
hair, and two shorter ones, at the anterior angle of the antennary fossa; 
lateral temporal angle with a stout short spine and a long hair; a long 
pustulated hair immediately in front of the posterior temporal angle, 
behind which is a tooth-like spine projecting inward and upward 
dorsally; in the mid-region of the dorsal surface, a few fine hairs, two 
longer ones, near the occipital margin, reaching to the metathorax; 
numerous small hairs on the ventral surface, and a stronger fringe 
along the inner border of the antennary fossa, which is not covered 
ventrally. 
Protliorax about half as long and half as wide as head, transversely 
elliptical, with lateral expansions and obtusely rounded hind margin; 
strongly coloured on the antero-lateral borders, with oblique bands 
converging toward the mid-line posteriorly; four long and some short 
hairs along posterior margin, and a hair in lateral angles; a few scattered 
hairs on dorsal, and two pairs of long hairs on ventral surface. Meso- 
thorax short, with rounded lateral borders, narrower than prothorax, 
with distinct suture; on dorsal surface two rounded prominences 
laterally, each bearing a couple of hairs; two pairs of long hairs on 
ventral surface. Metathorax of irregular shape, narrower anteriorly, 
and bilobed laterally; posterior margin flatly rounded, with crenated 
edge; practically uncoloured, save for narrow lateral bands; six pairs 
of long and some short hairs dorsally; two pairs on ventral surface; 
sternal markings distinct, comprising a roughly rectangular presternite, 
a papilionaceous mesosternite, and a rounded metasternite, with four 
interna] chitinous spots, two in front and two behind the insertions of 
the metathoracic legs. 
