80 
Mallophagan family Trimenoponidae 
of material available I am unable to do more than give a general sketch of 
their appearance. 
Genus Harrisonia nov. 
Mallophaga of the family Trimenoponidae ; with the posterior portion of 
the head strongly produced laterally, the process ending in a heavily chitinised, 
flattened hook and with the anterior lateral angles of the head produced into 
a strong, downward and backward pointing, heavily chitinised hook; with the 
clypeal region not delimited dorsally by a suture; with the antennal fossae 
Fig. 4. Genitalia of males of: A, Philandesia townsendi (K. and N.); B, Triinenopon jenning si 
(K. and P.); C, Cummingsia peramydis n.sp.; D, Harrisonia uncinata n.sp.; E, Cummingsia 
maculata n.sp. 
not covered beneath by a flap; with the mesothorax fused with the prothorax; 
with small pulvilli on the first segment of the tarsi; with the genitalia of the 
male of a very simple type. 
Type of the Genus. Harrisonia uncinata n.sp. This is the only included 
species. 
Notes. The extraordinary form of the head, together with the other 
characters enumerated, seems adequately to justify the erection of a new genus. 
The single included species is one of the most remarkable forms yet described 
