Microtityus, Kjellesvig-Waering, 1966

de Armas, Luis F., 2020, Scorpions of Puerto Rico and its satellite islands (Scorpiones: Buthidae, Diplocentridae): an аnnotated list, key for genera, and bibliography, Euscorpius 311, pp. 1-8 : 6

Key for species of the genus Microtityus (mainly females)

1. Basal middle lamella of the pectines conspicuously enlarged in both sexes ( Fig. 12 ). ...................... M. vieques

– Basal middle lamella of the pectines not enlarged neither in female or male. ................................................................ 2

2. Female with pectinal basal plate wider than long, not spatulate ( Fig. 13 ). ............................................ M. santosi

– Female with pectinal basal plate longer than wide, distally spatulate ( Fig. 14 ). ...................................... M. borincanus

Figures

Figures 12−14: Microtityus spp., pectines. Figure 12. M. vieques, male holotype, basal middle lamella conspicuously enlarged, modified from Teruel et al. (2015: fig. 2b). Figure 13. M. santosi, female holotype, basal plate and the distal area of the left comb, showing two egg-like organisms firmly attached (outside square), modified from Teruel et al. (2014: fig. 5c). Figure 14. M. borincanus, female holotype, basal plate, modified from Teruel et al. (2014: fig. 2c).