A total of 2,287 newborn scorpions were counted and photographed on 100 females of all 12 described species of the “vorhiesi” group of the genus Vaejovis (Scorpiones: Vaejovidae) found in Arizona, USA, and several undescribed species. Average clutch size for the “vorhiesi” group and for each individual species is reported. The data clearly shows that the larger species have more young, per parturition, than the smaller species. Representative photographs are presented for each species discussed.
Ayrey, R. F. 2013 . Reproduction and birth in the “vorhiesi” group of the genus Vaejovis (Scorpiones: Vaejovidae). Part I. Clutch size. Euscorpius, No. 166: 1-15.