Key to the Costa Rican species of Aspasiola Chaudoir 1877

1 Legs and tarsomeres concolorous, testaceous ......................................................... 2

1' Leg bicolored, femur testaceous, tibia and tarsomeres piceous................................ 5

2(1) Elytron with punctulae of interneurs markedly small and fine throughout; pronotum transverse with hind angle slightly obtuse, margin not markedly constricted anterior to hind angle ............................................................................ A. selva Erwin, n. sp.

2' Elytron with punctulae of interneurs moderately coarse in basal half, fine posteriorly; pronotum with hind angle obtuse, margin markedly constricted anterior to hind angle ........................................................................................................................ 3

3(2') Pronotum with margins broadly explanate, width greater than head across eyes; elytra somewhat obscurely pigmented, only humerus AND post scutellar area pale.. .................................................................................................... A. osa Erwin, n. sp.

3' Pronotum with margins narrowly explanate, width less than head across eyes; entire elytron pale, although darkly pigmented wings may show through; post scutellar area pale ................................................................................................................... 4

4(3') Eyes normal, moderately produced, not appearing stalked from posterior aspect; distal antennomeres (5–11) black ........................................................... A. ignea Bates

4' Eyes slightly stalked, markedly produced, appearing stalked from posterior aspect; distal antennomeres (5–11) brown, 3–4 slightly infuscated.. A. bonita Erwin, n. sp.

5(1') Elytron with humeral area darkly pigmented with bluish reflections, remainder bright rufous; apex of femur infuscated .............................. A. steineri Erwin, n. sp.

5' Elytron bright rufous; apex of femur testaceous............................ A. lemoides Bates