0. acute or with distinct 90 degree angle posteroventrally

1. rounded posteroventrally or with obtuse angle posteroventrally

0. with some carinate sculpture

1. lacking carinate sculpture

0. evenly convex

1. with weak, longitudinal, median carina

2. with sharp, well-defined, median, longitudinal carina

3. with anterolateral converging carinae

0. yellow basally, black apically with a sharp distinction

1. entirely black sometimes with pale areas

2. black basally , clear apically

3. banded from base: yellow, black, yellow, black

4. mostly black with stigmal area yellow