340 
Mallophaga from Marsupials 
proportion to its length, and with a large accessory sac without homologue 
in other Mallophaga. Characteristic of marsupials. 
This family we divide into two sub-families, Latumcephalinae, and 
Boopinae, which are easily separable by the following key. 
Key to Sub-families. 
A. Palpi two-jointed LATUMCEPHALINAE. 
AA. Palpi four-jointed BOOPINAE. 
Sub-family LATUMCEPHALINAE n. 
Characters of sub-family. Boopidae with head twice as broad as 
long; antennary fossa covered dorsally by a thin membranous plate; 
a tubercle with a movable spine protecting eye; palpi two-jointed; 
tarsi short and two-jointed; mesothoracic prominences with hairs, not 
spines. A single genus, Latumcephalum Le Souef. 
Genus Latumcephalum Le Souef. 
Le Souef (1902, p. 51) has given a brief diagnosis of this genus, in 
which he states, inter alia, that the palpi are “apparently two-jointed, 
but in reality four-jointed.” We find that the palps have only two 
articles. The characters we give for the sub-family hold equally for 
the genus. We may, in addition, draw attention to the extreme lateral 
production of the anterior temporal angle; to the unusual position of 
the eye, which is not marginal, but situated dorsal to the innermost 
part of the antennary fossa; to the development of the prothoracic 
wings at the expense of the median portion; and to the lateral incisions 
which divide the metathorax into two unequal parts. Latumcephalum 
is also devoid of the three pairs of special sensory organs (Eig. 4) which 
appear upon the first three abdominal segments of all other Boopidae. 
Two species are known, L. macropus Le Souef, and L. lesouefi, a new 
species which we describe below. 
Latumcephalum macropus Le Souef. Figs. 2-3. 
Le Souef ( loc. cit.) has recorded this species from “wallabies,” and 
has given a summary description and a poor figure (Fig. 4) of the $. 
He did not distinguish between the two species. We find the correct 
host of the type to be Macropus dorsalis (a Queensland species) in the 
Melbourne Zoological Gardens. The description and figures are from 
Le Souef’s types in our possession. 
