Review of the New World species of Salina (Collembola: Paronellidae) with bidentate mucro, including a key to all New World members of Salina Author Soto-Adames, Felipe N. text Zootaxa 2010 2333 26 40 journal article 10.5281/zenodo.193142 6a42ee44-d564-4f1e-805a-6c6bc918cd37 1175-5326 193142 Salina beta Christiansen and Bellinger, 1980 Salina beta Christiansen & Bellinger 1980 : 1103 , 1104 , 1106, Fig. 819 (California, USA ), original description and key. Yoshii 1983: 16, key, new species group. Hall 1988 : 141 , on sugarcane (Florida, USA ), possibly a misidentification, see remarks under S. bidentata . Christiansen & Bellinger 1998 : 1125 , 1126, 1128, Fig. 819, key and description. Material Examined : USA . California, Stanislaus Co., Modesto; lawn; 29 September 1961 ; H. Sinclair, coll. Holotype on one slide, California Department of Agriculture # 61J2–105, deposited at the California Academy of Sciences (entomology type # 15020). Description : The following additions to the description of the species are based on the holotype . Length of holotype 1.1 mm. Colour pattern not seen but originally described as shown in Fig. 42 . Ant. 1 with 2 dorsal macrosetae. Prelabral setae 2. Postlabial column CG obstructed, but apparently all setae ciliate. Tergal macrochaetotaxy of Th. 2–Abd. 2 as 4, 6, 4, 2 ( Figs. 25–26 ): chaetotaxy of Th. 3 and Abd. 1 arranged as in S. bidentata . Abd. 4 with 4 posterior setae. Trochanteral organ with 13+14 setae. Unguis with only one distal unpaired tooth. Collophore anterior face with 3 macro- and 3 microsetae; lateral setae 15; posterior face with 1+1 setae. Proportions of dens/manubrium≈ 1, proportion dental vesicle/mucro ≈ 1. Mucro with basal dorsal denticle. Remarks : Salina beta has a unique colour pattern that distinguishes it from all other New World species. In chaetotaxy S. beta is intermediate between S . wolcotti / ventricolor and bidentata / thibaudi , as shown in Table 1 .