Belongs within: Buthoidea.
Microtityus is a genus of very small scorpions found on Caribbean islands and in northern South America (Botero-Trujillo & Noriega 2008).
Characters (Botero-Trujillo & Noriega 2008): Very small scorpions (less than 25 mm length); general coloration yellowish to reddish-yellow with variegated pigmentation; carapace sub-triangular and emarginated, with three pairs of lateral eyes; pedipalps either orthobothriotaxic (11 trichobothria on femur in A-α configuration, 13 on patella and 15 on chela), with only femur neobothriotaxic (trichobothrium d2 absent), with both femur and chela neobothriotaxic, or with only chela neobothriotaxic; dentate margin of pedipalp movable fingers composed of 9–12 oblique rows of granules, without accessory granules; tergites with three or five longitudinal carinae; pectines with well developed fulcra; sternum sub-pentagonal; booklung spiracles ovoid; subaculear tubercle strong and rhomboidal.
<==Microtityus Kjellesvig-Waering 1966B-TN08
| i. s.: M. ivei Armas 1999B-TN08
|--M. (Microtityus)B-TN08
| |--*M. (M.) rickyi Kjellesvig-Waering 1966 [incl. M. starri Lourenço & Huber 1999]B-TN08
| |--M. (M.) ambarensis (Schawaller 1982)B-TN08
| |--M. (M.) angelaerrosae González-Sponga 2001B-TN08
| |--M. (M.) biordi González-Sponga 1970B-TN08
| |--M. (M.) capayensis González-Sponga 2001B-TN08
| |--M. (M.) desuzei González-Sponga 2001B-TN08
| |--M. (M.) franckei Botero-Trujillo & Noriega 2008B-TN08
| |--M. (M.) joseantonioi González-Sponga 1981B-TN08
| |--M. (M.) litoralensis González-Sponga 2001B-TN08
| |--M. (M.) sevciki González-Sponga 2001B-TN08
| |--M. (M.) vanzolinii Lourenço & Eickstedt 1983B-TN08
| `--M. (M.) yaracuyanus González-Sponga 2001B-TN08
`--M. (Parvabsonus Armas 1974)B-TN08
|--M. (P.) consuelo Armas & Marcano-Fondeur 1987B-TN08
|--M. (P.) dominicanensis Santiago-Blay 1985B-TN08
|--M. (P.) farleyi Teruel 2000B-TN08
|--M. (P.) fundorai Armas 1974B-TN08
|--M. (P.) guantanamo Armas 1984B-TN08
|--M. (P.) jaumei Armas 1974B-TN08
|--M. (P.) kovariki Teruel & Infante 2007B-TN08
|--M. (P.) lantiguai Armas & Marcano-Fondeur 1992B-TN08
|--M. (P.) paucidentatus Armas & Marcano-Fondeur 1992B-TN08
|--M. (P.) trinitensis Armas 1974B-TN08
|--M. (P.) virginiae Armas 1999B-TN08
`--M. (P.) waeringi Francke & Sissom 1980B-TN08
*Type species of generic name indicated
References
[B-TN08] Botero-Trujillo, R., & J. A. Noriega. 2008. First record of the scorpion genus Microtityus from Colombia, with the description of a new species (Scorpiones, Buthidae). Journal of Arachnology 36 (2): 259–266.