Fulgoroidea — Flatidae and Hypochthonellidae 
341 
1936 Ormenis ( Petrusina ) marginata Wolcott, Jour. Agr. Univ. Puerto 
Rico 20: 102 [Food plants] 7 
1936 Ormenis ( Petrusa ) pygmaea Wolcott, Jour. Agr. Univ. Puerto 
Rico 20: 102; Figs, a-c [Food plants, illustrated] 7 
1938 Ormenis marginata Anonymous, Rept. Agr. Exp. Sta. Porto Rico 
1937 :92 [Economics] 7 
1940 Ormenis marginata Anonymous, Inf. Est. Exp. Puerto Rico 1937 
:103 [Economics] 7 
1941 Ormenis marginata Fennah, Proc. Ent. Soc. Washington 43: 193; 
PI. 20, Figs. 1, 2 [Described, key, food plants, illustrated] 13 ’ 14 • 15 
Equals Cicada marginata Briinn. Equals Cicada pygmaea Fabr. 
Equals Ormenis ( Petrusa ) marginata Mel. Equals Ormenis 
(Petrusa) pygmaea Osb. Equals Ormenis pygmaea Mel. Equals 
Petrusa pygmaea StM. Equals Petrusina marginata Mel. 
1941 Ormenis marginata Wolcott, Jour. Agr. Univ. Puerto Rico 25 :53 
[Food plants] 7 
1941 Ormenis pygmaea Wolcott, Jour. Agr. Univ. Puerto Rico 25: 53 
[Food plants] 7 
1942 [Petrusa marginata ] Fennah, Proc. Ent. Soc. Washington 44: 156 
[Catalogued] Equals Cicada pygmaea Fabr. Equals Cicada mar- 
ginata Briinn. 
1945 Petrusa marginata Fennah, Proc. Ent. Soc. Washington 47: 225; 
PI. 21, Figs. 1—4 [Morphology of o' genitalia, illustrated] 
1946 Petrusa marginata Fennah, Proc. Ent. Soc. London 21: 74, 75 
[Notes, distribution] 20 - 21 :74 Equals P[etrusa\ pygmaea Fabr. 
1947 Ormenis marginata Beatty, Jour. Agr. Univ. Puerto Rico 28: 125 
[Listed] 9 - 16 
1947 Petrusa marginata Ramos, Jour. Agr. Univ. Puerto Rico 30: 19; 
PI. II, Figs. 18, 19 [Ecology, illustrated, catalogued] 26 Equals 
Ormenis marginata Briinn. Equals 0[rmenis] pygmaea Fabr. 
1949 Petrusa marginata Fennah, Psyche 56: 51 [Listed] 13 - 14 • 15 ’ 20 • 21 • 22 
:63 [Catalogued] 23 ’ 24 - 25 Equals Cicada marginata Briinn. 
1950 Petrusa marginata Caldwell, American Mus. Xov. 1460: 1 
[Listed] 17 
1950 Petrusa marginata Wolcott, Jour. Agr. Univ. Puerto Rico 32 :136; 
Figs. 18-19 [Notes, ecology, illustrated] 7 Equals Ormenis margi- 
nata Briinn. Equals 0[rmenis] pygmaea Fabr. 
1951 Petrusa marginata Caldwell and Martorell, Jour. Agr. Univ. 
Puerto Rico 34: 227; PI. 41, Figs. 1,1a [Described, ecology, illus- 
trated, catalogued] 2 - 7 ’ 10 - 16, 1S - 19, 26 Equals Cicada marginata 
Briinn. Equals Cicada pygmaea Fabr. Equals Ormenis insxdicola 
Kirk :226 [Key] :229 [Comparative note] 
