G. F. Ferris 
77 
Genus Trimenopon Cummings. 
1913. Cummings, Bull. Ent. Res. iv, 39. 
1915. Harrison, Parasitology , vm, 123, 124. 
1916. Harrison, Parasitology, ix, 31. 
The original description of this genus requires some modification. I re¬ 
write it as follows: * 
Mallophaga of the family Trimenoponidae ; with the lateral margins of the 
head not emarginate or notched; without spines on the ventral side of the 
head; with the clypeal region delimited dorsally by a distinct suture; with the 
antennal fossae partially covered beneath by a flap; with distinct pulvilli on 
the first tarsal segment; with the genitalia of the male of a very complex type. 
Type of the genus, Menopon jenningsi Kellogg and Paine. This is the only 
included species. 
Trimenopon jenningsi (Kellogg and Paine). 
Figs. 1, 2 a, 3 a, 4 b. 
1910. Menopon jenningsi Kellogg and Paine, Ent. News, xxi, 461; Fig. 
1912. Menopon jenningsi K. and P., Paine, Ent. News, xxiii, 442. 
1913. Trimenopon echinoderma Cummings, Bull. Ent. Res. iv, 40; Fig. 4. 
1916. Trimenopon jenningsi (K. and P.), Harrison, Parasitology, ix, 31. 
Previous Records. From Cavia cobaya, Panama Canal Zone (Kellogg 
and Paine); Cavia cutleri, Peru (Paine); Cavia aperea, Paraguay (Cummings). 
Specimens Examined. The types of Kellogg and Paine. 
Notes. The original descriptions of this species, especially that of Cummings, 
are in general quite detailed and I shall content myself here principally with 
somewhat more detailed figures for comparison with the other species of the 
family. 
I think there can be no question that T. echinoderma Cummings is a 
synonym of T. jenningsi (K. and P.) as Harrison has indicated in his Catalogue 
of the Mallophaga (1916). Cummings states that the antennae of his species 
are five-segmented, while in jenningsi they are certainly but four-segmented, 
but as the two species agree in all other respects and as all the other species 
of the family have the antennae but four-segmented it seems quite certain 
that Cummings was in error. 
Genus Philandesia Kellogg and Nakayama. 
1914. Kellogg and Nakayama, Ent. News, xxv, 198. 
1916. Harrison, Parasitology, ix, 31. 
Mallophaga of the family Trimenoponidae ; with the lateral margin of the 
head deeply sinuate-emarginate; without spines on the ventral side of the 
head; with the clypeal region delimited dorsally by a suture; with the antennal 
fossae covered beneath by a flap; with the labium provided with a pair of 
forward-pointing processes; with distinct pulvilli on the first tarsal segment; 
with the genitalia of the male of a very complex type. 
Type of the Genus. Philandesia townsendi Kellogg and Nakayama. This 
is the only included species. 
