An annotated catalogue of the scorpion types (Arachnida, Scorpiones) held in the Zoological Museum Hamburg. Part I: Parvorder Iurida Soleglad & Fet, 2003 Author Monod, Lionel Author Duperre, Nadine Author Harms, Danilo text Evolutionary Systematics 2019 3 2 109 200 http://dx.doi.org/10.3897/evolsyst.3.37464 journal article http://dx.doi.org/10.3897/evolsyst.3.37464 2535-0730-2-109 87602625AF8D4A3FBAE5F35C09FB6C00 48BB2ADCDFB750ACA7D9EC306EC80801 Iomachus exsul Iomachus exsul Werner, 1939: 360, fig. 3 Current combination. Chactas exsul (Werner, 1939) Holotype (lost). Data according to original description: ♂ Costa Rica, [ Limon ], Ebene von Limon [plains of Puerto Limon ], bei Las Mercedes [near Las Mercedes] [ 10°10 '32" N , 83°36 '41" W ], 10-30 m ueber dem Meere [10-30 m alt.], 12-30 km vom Atlantik [12-30 km from the coast], Siguires, in Bohrloechern [in boreholes]. Remarks. According to Sissom (2000) , the holotype was destroyed during World War II. A neotype was subsequently designated by Francke and Stockwell (1987 : 27). This specimen, a female from El Valle (Panama), is deposited in the collection of the Smithsonian Museum in Washington (USNM). We consider the designation of this neotype questionable for the following reasons: (1) The locality of the neotype is about 650 km from the original type locality; (2) The authors examined only five specimens in total, four females and one juvenile. Among this material, all specimens are from Panama except one female collected in the Limon Province in Costa Rica. It would have been more logical to designate this latter specimen as the neotype rather than one specimen from Panama because the site of collection was closer to the type locality. However, the authors do not provide any explanation regarding their decision to choose a specimen from Panama as neotype.