Key for the determination of the Euplocania species from Peru

1. Females............................................................................................ 2

- Males.............................................................................................. 8

2. Forewing without marginal pigmented band or with only a few spots without forming bands or arches, vein M4 bifurcated (see Fig. 1 in Garcia Aldrete 1998)........................................................................... 7

- Forewing with marginal pigmented band or forming marginal arches (Figs 13, 30, 35), vein M4 simple................. 3

3. Forewing with marginal pigmented band forming arches (Fig. 13); IX sternum with anterior margin forming central concavity, posterior margin bilobed (Fig. 18)............................................................ E. amarui n. sp.

- Forewing with marginal pigmented band (Fig. 35); IX sternum variable.......................................... 4

4. Forewing pterostigma angulate, projected in the middle or distally towards Rs (see Figs 18 & 19 in New & Thornton 1988). ................................................................................................... 5

- Forewing pterostigma with lower border (vein R1) broadly rounded, not angled as above (Fig. 35)..................... 6

5. Forewing with marginal pigmented band from R1 (see Figs 18 & 19 in New & Thornton 1988); epiproct nearly twice as long as wide..................................................................... E. badonneli New & Thornton

- Forewing with marginal pigmented band from R4+5 (see Fig. 9 in Garcia Aldrete 1998); epiproct wider than long (see Fig. 11 in Garcia Aldrete 1998).......................................................... E. pictaoides Garcia Aldrete

6. Hindwing with marginal pigmented band, cell R1 with margins nearly parallel, distally no narrower (see Fig. 10 in New & Thornton 1988)............................................................. E. marginata New & Thornton

- Hindwing hyaline, R1 cell narrower distally (Fig. 36).......................................... E. wchipere n. sp.

7. Forewing with small spots in cells R5 and M1-M3, second part of vein Rs clearly longer than vein R5 (see Fig. 14 in New & Thornton 1988)............................................................... E. maculata New & Thornton

- Forewing with cells R5 and M1-M3 hyalines, second part of vein Rs almost as long as vein R5 (see Fig. 1 in Garcia Aldrete 1998)................................................................................... E. cerata New

8. Hypandrium of one sclerite (Figs 23, 28, 33)................................................................ 9

- Hypandrium of three sclerites (Figs 5, 11), usually a medial one flanking by two smaller ones....................... 14

9. Central sclerite of hypandrium with posterolateral acuminates projections, curved inwards (see Fig. 25 in New 1980); with pair posteromesal endophallic sclerites, acuminates distally, longitudinal positioned (see Fig. 26 in New 1980)... E. cerata New

- Central sclerite of hypandrium without posterior projections as above (Figs 23, 28, 34), endophallic sclerites different, not like the above (Figs 24, 29, 34)............................................................................. 10

10. Central area of hypandrium with deep V-shaped incision, each lobe formed with distal process, apically pointed, curved inward, forming concavity on its inner margin and basal projection with macrosetae (Figs 23, 28)… Group garcialdretei ........ 11

- Central area of hypandrium with four well-developed distal lobes (triconcave) (Fig. 33) and its posteromesal sclerite with two apical and outwardly curved teeth (Fig. 34)................................................ E. matsiguenka n. sp.

11. Phallosome with lateral-anterior sclerite fused and forming an outwardly curved ring, centrally connected to the mesal sclerites (Fig. 24)........................................................................... E. garcialdretei n. sp.

- Phallosome with lateral and anterior sclerites different; pair mesal sclerites elongated, fused to the lateral sclerites, with posteromesal sclerites distally acuminate and curved inward (Fig. 29)............................... E. katarii n. sp

12. Central sclerite of the hypandrium with two postero-lateral processes often rounded, spinose or glabrous Group amabilis 13

- Central sclerite of hypandrium different, not like species of the above group..................................... 14

13. Central sclerite of hypandrium with postero-lateral processes longer than wide, curved inward (see Fig. 23 in New & Thornton 1988); mesal endophallic sclerite with one pair of postero-lateral processes, not bearing a median, posterior process (see Fig. 24 in New & Thornton 1988)........................................... Euplocania badonneli New & Thornton

- Mesal endophallic sclerite with postero-lateral projections long, well developed, bifurcated, almost as wide as long (see Fig. 16 in Garcia Aldrete 1998); central sclerite of hypandrium with posterior processes bearing a field of spines, and with acuminate projection directed inward (see Fig. 14 in Garcia Aldrete 1998).......................... E. pictaoides García Aldrete

14. Forewing with a pale brown-yellowish band along margin, from R2+3 to near the wing base (Fig. 1); veins without brown areolae on veins in setal insertions; central sclerite of hypandrium triconcave posteriorly, with two medial processes acuminate, lateral lobes with short apical teeth and process with rounded apex curved inward (Fig. 5); mesal endophallic sclerites fused, with two anterolateral processes, posterior margins with four short acuminate processes originating in superior and inferior fields (Fig. 6).......................................................................... E. alfonnerii n. sp.

- Forewing without marginal band as above; with brown areolae on veins in setal insertions (Fig. 7); central sclerite of hypandrium different (Fig. 11), with fine marginal teeth distally, apically with two closely spaced lobe-like processes located in a lower field; posterior ends of lateral endophallic sclerites strongly dilated (Fig 12); pair mesal endophallic sclerites elongate, separate, with mesal sclerite process, apically with short acuminate process on its outer side.................... E. amarui n. sp.