LEPIDOPTERA HETEROCERA 
122 
SEcTION II. — cf palpus with third joint rather long; &' hindleg with terminal process, 
all spurs developed; 9 antenna not bipectinate; hindwing with M' stalked, 
2. P. assa (Druce). Costa Rica, ? Peru. 
Nemoria assa, Druce, Biol. Centr, Amer. Lep. Het. Vol. 2, p. 85, t. 49. 
f. 11, 12 (1892). 
? Tachyphyle aeretincta. Warren, Novit. Zool. Vol. 11, p. 507 (1904) (nov. syn.). 
3. P. obliquata (Warren). Mexico to Guatemala. 
Nemoria iris (part.), Druce, Biol. Centr. Amer. Lep. Het. Vol. 2. p. 85 
(1892) (nec Butler). 
Dichorda obliquata, Warren, Novit. Zool. Vol. 11, p. 503 (1904). 
4. P. mitigata, nov. sp. 1), Prout (przc. var. ?). Panama. 
SECTION III. — As preceding, but c' third joint sometimes moderate, terminal process 
sometimes wanting, hindwing with M! not stalked; aspect of TackypAyle, termen of 
hindwing rounded. 
5 P. laediata (Felder). Amazons. 
Nemoria taediata, Felder, Reise Novara, Lep. Het. t. 127, f. 11 (1875). 
6. P. albicepbs (Warren) (prac. var. ?). Peru. 
M elochlova albiceps, Narren, Novit. Zool. Vol. 11, p. 504 (1904). 
7. P. lucens (Warren). Peru. Venezuela, Trinidad. 
Tachyphyle lucens, Warren, Novit. Zool. Vol. 14, p. 210 (1907). 
8. P. pigraria (Sepp) (huj. sect. ?). Surinam. 
PAhalaena Geometra pigraria, Sepp, Surin. Vlind. p. 39, t. 16 (1848 ?). 
Geometra pigraria, Walker, List Lep. Ins. Brit. Mus. Vol. 26, p. 1553 (1862j. 
9g. P. niveiceps, nov. sp. 2), Prout. NOSE Peru: 
SEcTION IV. — As preceding, cf third joint usually moderate, hindtibia not dilated, hindwing 
with M! not stalked (except in opaca); aspect of Section V (Melochlora, Warren), termen 
of hindwing more or less elbowed at R? (very slightly in discaía, opaca and genuflexa), 
underside usually elaborately marked. 
10. P. janeira (Schaus). Rio Janeiro. 
Tachyphyle janeira, Schaus, Journ. New York Ent. Soc. Vol. 5, p. 162 (1897). 
rr. P. frimaculata (Warren). Costa Rica to Peru. 
Melochlora trimaculata, Warren, Novit. Zool. Vol. 8, p. 445 (1901). 
Melochlora intermedia, Warren, ibidem, Vol. 11, p.22 (1904) (ab.) (nov. syn.). 
12. P. affinis (Warren) (prec. form ?). Guianas to Peru. 
Melochlora afínis, Warren, Proc. U. 5. Nat. Mus, Vol. 30, p. 417 (1906). 
1) Phrudocentra mitigata, nov. sp. — 3. 34 mm. Closely similar to o5Zigzafa, Warren, but with the postmedian line much more 
slender, almost ovsolete (indicated about as in weakly-marked examples o! 2»5:z//aía, by a slightly pale line), slightly dark-margined prox'mally ; 
hindwing somewhat more ample than in ob/igzafa, with Mt sZor//y staiked, termen bulzed about R?; frenulum very slender; face red. Chir:qui, Panama. 
Type in coll L. B. Prout. It is not altogether 1mp: ss ble that, in spite. of the ditlerences, th:s may prove, on comparison of larger and better material, to 
be a form of the preceding. In our type (though otherwise good) the base and body are bad y discoloured in relaxing, so that we cannot speak of the 
antemedian l;ne. Beneath, the postmedian is quite obsolete. 
2) Phrudocentra niveiceps, nov. sp. — CO, 3o mm, Head and face rure white, only the occiput green. Palpus quite moderate, ra'her 
strongly rough-h iired, pale green above, wlfite beneath. Antenn |l *haft white.except at aoex, pectin tion: very short. Thorax green ab ve, whire beneath, 
Legs white, foretibia marked with blackish ab.;ve, and with the hair-tuft almost who!ly b ack; hindtibia with a rather short but conspicuous process, 
median spurs develop d, un«qual. Wings rather dark grey-green, with slight bronzy reflection, distal margins much paler, without sharp delmitation ; 
forewing shaped as in ZucZyPZyle, marked with a prominent. black cell-spot and two faint, approximated olive lines, the antemedian outbent on base 
of M?,the postmedian gently outcurved near cos'a, thence nearly straight, pirallel with termen; hindwing with termen gently rounded, discal spot 
somewhat smaller than on forewing, lines very weak, the postmed:an nesrly straight from middle of costa to inner margin somewhat beyo: d middle ; both 
wings with a fine whitish terminal line, only noticeable in some lights; fringes n-arly conco orous with termen, distal half slight y paler than. proximal. 
Underside similar, without the lines; terminal area of forewing whiter, the whole of hindwing -omewhat whiter, especially the terminal area, discal 
dot present on forewing only Huancabamba, N. E. Peru. Type in coli. L. B; Prout. Reminds superficially of ZacAyeAyle occw//a, Warren, but differs 
structurally. In the hindwing, vein M! is (quite exceptionally for this group) very short-stalked with R?. 
