The scorpions of Hainan Island, China (Arachnida: Scorpiones) Author Di, Zhi-Yong Author Cao, Zhi-Jian Author Wu, Ying-Liang Author Zhu, Lin Author Liu, Hui Author Li, Wen-Xin text Euscorpius 2013 153 1 22 journal article 1536-9307 Genus Isometrus Ehrenberg, 1828 Isometrus : Thorell, 1876: 8 ; Tikader & Bastawade, 1983: 254; Sissom, 1990: 101 ; Fet & Lowe, 2000: 146; Kovařík, 2001: 41 ; Kovařík, 2003: 1–2 ; Lourenço, 2005: 57 . Figures 1–4: Habitus of Isometrus maculatus . 1–2. Male (Ar.-MWHU-HNLS0701), dorsal and ventral views. 3–4. Female (Ar.-MWHU-HNSY0701), dorsal and ventral views. Scale bars: 10.0 mm. Figures 5–11: Isometrus maculatus . Male (Ar.-MWHU-HNLS0701). 5. Carapace. 6. Lateral eyes. 7. Femur dorsal aspect. 8–9. Patella dorsal and external aspects. 10–11. Metasomal segment V, lateral and ventral aspects. Scale bars: 1.0 mm. Type species : Scorpio maculatus DeGeer, 1778 Diagnosis : See Kovařík (2003) .