Key to the Species of Pigritia of Costa Rica

1. Male................................................................................................ 2

- Female.............................................................................................. 9

2. Labial palpus extending to or beyond antennal base).......................................................... 3

- Labial palpus extending 1/2 distance between ventral margin of frontoclypeus and antennal base)...................... 5

3. Juxta bandlike and not divided (Fig. 239).......................................................... Pigritia faux

- Juxta divided mesially forming two plates (Figs. 241, 247)..................................................... 4

4. Plates of juxta greater than 1/2 distance between vinculum and tegumen (Fig. 241)........................ Pigritia haha

- Plates of juxta less than 1/2 distance between vinculum and tegumen (Fig. 247)......................... Pigritia ululae

5. Uncus spatulate (Fig. 249)............................................................... Pigritia marjoriella

- Uncus digitate (Figs. 237, 245), reduced to a slightly raised lobe (Fig. 243), or absent (Fig. 247)....................... 6

6. Uncus digitate (Figs. 237, 245)........................................................................... 7

- Uncus reduced to a slightly raised lobe (Figs. 235, 243)....................................................... 8

7. Juxta divided; basal part of valva with a broad, densely setose part (Fig. 237); anellus notched apically (Fig. 238) Pigritia dido

- Juxta bandlike; basal part of valva with a narrow, densely setose part (Fig. 245); anellus not notched apically (Fig. 246)............................................................................................... Pigritia gruis

8. Basal 1/2 of digitate process of valva setose (Fig. 235); anellus bearing a barblike process on subapical region (Fig. 236).............................................................................................. Pigritia sedis

- Basal 1/2 of digitate process of valva lacking seate altogether (Fig. 243); anellus not bearing a barblike subapical process (Fig. 244)...................................................................................... Pigritia stips

9. Microtrichiate area on lobes lateral to Ostium bursae as wide as widest part of ovipositor; corpus bursae trisignate (Fig. 273)..................................................................................... Pigritia marjoriella

- Microtrichiate area on lobes lateral to Ostium bursae less than 1/2 as wide as widest part of ovipositor; corpus bursae unisignate (Fig. 272).............................................................................. Pigritia dido