Key to species of Pseudosparna
1. Elytra with setae only along the posterior third of the lateral margins............................................. 2
– Elytra with setae along the posterior half or the entire lateral margins............................................. 8
2(1). Profemora and protibiae with distinct projections. Costa Rica ................... P. mantis Devesa & Santos-Silva, 2020
– Profemora and protibiae lacking projections................................................................ 3
3(2). Elytra with longitudinal, isolated or partially fused light pubescent bands......................................... 4
– Elytra without longitudinal light pubescent bands............................................................ 7
4(3). Pronotum with subcircular dark pubescent macula centrally. Brazil (Pará).............. P. tucurui Monné & Monné, 2014
– Pronotum without subcircular dark pubescent macula......................................................... 5
5(4). Elytra with isolated longitudinal light pubescent band. Bolivia ...................... P. boliviana Monné & Monné, 2011
– Elytra without isolated longitudinal light pubescent band...................................................... 6
6(5). Elytra with transverse light pubescent band reaching suture before middle; apex of metafemora reaching about elytral apex. Venezuela .............................................................. P. aragua Mermudes & Monné, 2009
– Elytra without transverse light pubescent; apex of metafemora distinctly not reaching elytral apex. French Guiana ............................................................................... P. ubirajara Dalens & Touroult, 2015
7(3). Elytral apex slightly narrower than humeral width; posterior quarter of elytra without transverse light pubescent band. Ecuador ................................................................. P. pichincha Monné & Monné, 2014
– Elytral apex distinctly narrower than humeral width; posterior quarter of elytra with transverse light pubescent band. French Guiana ........................................................................ P. patawaensis Roguet, 2022
8(1). Protibiae with distinct tooth ventrally. Panama ....................... P. marilenae Nearns, Swift & Santos-Silva, 2023
– Protibiae without tooth ventrally......................................................................... 9
9(8). Elytra with abundant, small dark circular spots. Panama .............................. P. iolandae Lanuza-Garay, 2023
– Elytra without small dark circular spots................................................................... 10
10(9). Antennomere IV without light area; posterior area of elytra with dense yellow pubescence. Colombia ……………… P. antonkozlovi Santos-Silva & Nascimento, 2019
– Antennomere IV with light area; posterior area of elytra without dense yellow pubescence.......................... 11
11(10). Scape pedunculate-clavate. Costa Rica ...................................... P. swifti Santos-Silva & Monné, 2023
– Scape not pedunculate-clavate.......................................................................... 12
12(11). Elytra with isolated, well-delimited, transverse whitish pubescent band on posterior quarter. Venezuela ........................................................................................ P. amoena Mermudes & Monné, 2009
– Elytra without transverse whitish pubescent band on posterior quarter........................................... 13
13(12). Elytra without longitudinal light pubescent bands except along suture........................................... 14
– Elytra with longitudinal light pubescent band.............................................................. 16
14(13). Elytra with dense yellow pubescence covering most of surface. Panama ..... P. dimitrisi Nearns, Swift & Santos-Silva, 2023
– Elytra without dense yellow pubescence covering most of surface.............................................. 15
15(14). Inner margin of dark pubescent area on center of pronotum convergent from anterior to posterior margin; outer angle of elytra spiniform. Ecuador ................................................ P. triangulata Nascimento & McClarin, 2018
– Inner margin of dark pubescent area on center of pronotum subparallel-sided; outer angle of elytra not spiniform. Panama .......................................................................................... P. rileyi sp. nov.
16(13). Dense light pubescence covering most of dorsal surface of elytra. Ecuador ......... P. pallida Vlasak & Santos-Silva, 2022
– Dense light pubescence not covering most of dorsal surface of elytra........................................... 17
17(16). Longitudinal light pubescent band on dorsal surface of elytra starting and covering humeri.......................... 18
– Longitudinal light pubescent band on dorsal surface of elytra not starting on humeri............................... 19
18(17). Antennomere IV not tumid; longitudinal light pubescent band on dorsal surface of elytra not reaching longitudinal middle of elytra. Brazil (São Paulo)................................................ P. paulista Santos-Silva & Monné, 2023
– Antennomere IV tumid; longitudinal light pubescent band on dorsal surface of elytra reaching middle of elytra. Ecuador ...................................................................... P. luteolineata Mermudes & Monné, 2009
19(17). Elytra distinctly longer than four times prothoracic length. Panama ......... P. dimitrisi Nearns, Swift & Santos-Silva, 2023
– Elytra slightly longer than four times prothoracic length. French Guiana, Brazil (Pará)........... P. flaviceps (Bates, 1863)