NO. 3559 NEOTROPICAL CADDIS FLIES—FLINT 11 
missing. The original figures of the genitalia of the species appear 
to be quite good and probably are adequate for recognition of the 
species. 
Calamoceratidae 
Phylloicus major Miller 
Figures 5d-f 
Phylloicus major Miller, 1880, p. 131; 1881, p. 81; 1921, pp. 523-542.—Flint, 
1964, p. 65.—Fischer, 1965, pp. 22, 23. 
Homeoplectron assimile Ulmer, 1905a, pp. 36, 37.—Tomaszewski, 1961, p. 3. 
Phylloicus assimilis (Ulmer).—Ulmer 1905b, pp. 77, 78; 1907b, p. 120; 1913, 
pp. 398, 409.—Lestage 1925, p. 43. 
Lectotype, male: ‘‘S. Catarina Liiderwaldt,” ‘“Type,” “St. Z. 1905; 
p. 37 N 21,” “Inst. Zool. P.A.N. Warszawa Syntypus Nr. 1723,” 
“Phylloicus (Homeoplectron) assimilis Ulmer Typus!”’ ‘Lectotype 
Homeoplectron assimilis Ulmer By Flint.’”” In Warsaw. 
Ulmer (1905b) synonymized major and assimilis, retaining assimilis 
as the valid name because he felt that major was a nomen nudum. 
However, major had been validated as a name for the larval cases; 
thus, assimilis is the synonym. 
In addition to the types of assimilis, I have studied material at the 
MCZ and from Vienna labelled major by Miiller. The genitalia of 
the males of major and assimilis differ only in the possession of a small 
process above the cercus in assimilis. The coloration of assimilis is 
difficult to ascertain because the types are nearly denuded, but what 
remains of the pattern is reconcilable with the pattern of the specimens 
of major. Undoubtedly, Ulmer was correct in synonymizing the two. 
The figures of the male genitalia were prepared from the lectotype 
of assimilis. 
Phyiloicus angustior Ulmer 
Figures 5a—c 
Phylloicus angustior Ulmer, 1905b, pp. 78, 79; 1907b, p. 120; 1913, pp. 399, 
409.— Jorgensen 1919, p. 197.—Lestage 1925, p. 44.—Fischer, 1965, p. 21. 
Lectotype, male: ‘“Stieglmayr. Rio Gr. do Sul,” ‘“angustior det. 
Ulmer,” ‘Lectotype Phylloicus angustior Ulmer By Flint.” In 
Vienna. 
The wings of this species are covered with fuscus hairs, with a 
few white ones scattered in the region of the anastamosis and again 
nearer the wing base. The genitalia of the lectotype are figured. 
