84 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 113 
Genus Trichomorpha Silvestri 
Trichomorpha Silvestri, Boll. Mus. Zool. Torino, vol. 12, No. 305, p. 11, 1897. 
Trichomorpha extrema Chamberlin 
Fiacure 1m 
Trichomorpha extrema Chamberlin, Proc. Biol. Soc. Washington, vol. 38, p. 
43, 1925. 
Canal Zone, Barro Colorado Island, male, several females, June 6, 
1923, O. F. Cook and H. F. Loomis; 2 males, 1 female, March 8-15, 
1958, E. M. and H. F. Loomis. 
The gonopods are shown in figure 1m. 
Trichomorpha fratrellus Chamberlin 
Trichomorpha fratrellus Chamberlin, Proc. Biol. Soc. Washington, vol. 60, p. 
64, pl. 2, figs. 5-7, 1947b. 
Canal Zone, specimens of both sexes, ‘Pacific side,’ 1923, O. F. 
Cook and H. F. Loomis; numerous specimens, Barro Colorado Island, 
March 8-15, 1958, E. M. and H. F. Loomis. 
Trichomorpha panamica Chamberlin 
FIGURE 2a 
Trichomorpha panamica Chamberlin, Proc. Biol. Soc. Washington, vol. 30, p. 437 
1925. 
Trichomorpha kraussi Chamberlin, Proc. Biol. Soc. Washington, vol. 60, p. 63, 
pl. 2, figs. 1-4, 1947b. New synonomy. 
Canal Zone, male and female, Frijoles, July 13, 1923, and 2 males, 
Pifia area, March 18, 1958, H. F. Loomis; several males and females, 
Barro Colorado Island, March 8-15, 1958, E. M. and H. F. Loomis. 
Panama, female, El Valle, March 22, 1958, E. M. and H. F. Loomis; 
2 males, Cerro Campana, March 16, 1958, G. B. Fairchild and H. F. 
Loomis. 
Vertical view of the gonopods shown in figure 2a. 
In the paper in which T. panamica and T. extrema were described 
(1925), Chamberlin also founded two other species—T. nidicola 
and 7. recta—each based on a single female specimen. All four 
species have the common type locality of Barro Colorado Island. 
No additional specimens of the two latter species have since been 
reported, and it is now considered that the validity of each is in 
question. 
