Cryophilic Isotomidae (Collembola) of the Northwestern Rocky Mountains, U. S. A. Author Fjellberg, Arne text Zootaxa 2010 2513 27 49 journal article 10.5281/zenodo.196078 3afa748f-2467-40ae-83ec-00984bfe7362 1175-5326 196078 Desoria capra sp. n. ( Fig. 77 ) Type material . Holotype (female, in slide) and paratype (male, slide) from "Alaska: Juneau. Mts. between Mendenhall Glacier and Montana Creek Trail, 58o29'N , 134o40'W , 13.VII.1980 . On melt-water ponds, 975 m . alt., A. Fjellberg leg." ( INHS ). Description. Size 1.2 mm (subadult female in slide). Eye-spots black, rest of body white. Ocelli 6+6. Labrum modified, with stiff setae set close together (somewhat like Gnathisotoma spinolabris , described below). Apical edge of labrum membranous, without visible ventral ciliation (more like rough sandpaper). Maxillary palp trifurcate. Maxillae modified, with prolonged lamellae; Lam.1 passes well beyond tip of capitulum and appears almost smooth, without visible ciliation. Third tooth of capitulum thin and membranous ( Fig. 77 ). Labium with 4+4 basomedian setae. Ventral tube with 1+1 frontal and 3+3 lateral setae. Dens with 7 dorsal setae in proximal half. Tib. 1–2 shortened, inner side with 3+3 setae along median line (as Fig. 72 ). Abd. 5–6 fused. Etymology . The name refers to the mountain goat ( Oreamnos americanus ) which is abundant in the area where this new species was collected. Discussion . The species shares essential characters with cryophila and rosea in the 6+6 ocelli, small roundish PAO with three associated setae, "double" setal cover with distinct macrochaetae (as Fig. 30 ), abdominal sensilla inserted anterior to the p-row, manubrium with abundant (>50) setae in the ventral median field, mucro compact with 5 teeth. It differs sharply from other species of this group by having a trifurcate maxillary palp and modified labrum and maxillae. Despite that only two specimens are known, the species is so distinct that a formal description seems justified.