358 
Mallophaga from Marsupials 
and produced behind the occiput into acutely rounded temporal lobes. 
Prothorax resembling Heterodoxies, but angulated, not evenly rounded; 
equal in length to the head, but slightly narrower. Mesothorax a third 
as long as the prothorax, with the dorsal prominences widely separate. 
Metathorax a little longer than the prothorax, but narrower, with slight 
rounded projections from the lateral margins, carrying a spine, at a little 
more than half its length. Abdomen almost twice as long as head and 
thorax together, elongate ovate, widest at the fourth segment, deeply 
emarginate between segments. Terminal segment ending in two pairs 
of gonopodial processes, the ventral pair furnished with a couple of 
spines and some hairs, the dorsal terminating in a short bristle. Legs 
stout and spinous, with very short first tarsal joint. The hump on the 
third tibia is rather exaggerated in the figure. 
Fig, 14. Paraheterodoxus insignis. (A) Underside of head and thorax, $; (B) Second 
femur, <J. (L. H. del.) 
Chaetotaxy. A few short hairs on the clypeal margin, a long hair 
before and a short one behind the eye; a group of longish hairs on the 
temporal lobe, and four evenly spaced hairs, the outer longer, in front 
of occiput. The hairs of the thorax, both dorsal and ventral, are 
sufficiently indicated in the figures. Abdomen with a double row of 
hairs on segments 2-6, the marginal row of the first seven segments 
having a pair of spines interpolated at rather less than a third from the 
lateral margins. 
The male differs only in its slightly smaller size, in the previously 
mentioned clasping spines upon the second femora, and in the posterior 
end of the abdomen, which is rounded. 
