The genus Arrhopalites Börner, 1906 (Collembola, Appendiciphora, Arrhopalitidae) in the Neotropical Region, with description of four new cave species from Brazil Author Zeppelini, Douglas text Zootaxa 2006 1124 1 40 journal article 50757 10.5281/zenodo.171788 ef6107b2-b18b-42b2-ac42-60b992d8ae78 1175­5326 171788 Arrhopalites botuveraensis sp. n. ( Fig. 10 A –K) Etymology. This species is named after the Type locality. Type Material. Holotype female Ψ, BRAZIL , Santa Catarina. Botuverá, cave Botuverá. 17­i­1998 . R. Pinto­da­Rocha (MZUSP). Paratypes : BRAZIL , Santa Catarina: 4 female ΨΨ and 1 juvenile , same data as Holotype . Description. Caecus ­group ( Fig. 10 A –K). Body sparsely clothed with short setae on anterior part of the abdomen (Fig. D­a) and 4X longer setae on posterior part of the abdomen (Fig. D­b). Antennae of holotype about 1.2X length of head. Ant. I: II; III; IV = 1: 1.5; 3; 6.5. Ant. IV 2.06X longer than Ant. III, subdivided into five indistinctly ringed subsegments (Fig. A); longest setae about twice the width of segment; Ant. IV apex with a capitate sense rod (Fig. B). Ant. III without basal swelling; sense organ (Fig. C) with 2 parallel sense rods in a single shallow pit; seta Aai club­shaped and blunt; Api and Ape setae slender with bristle like apex; Ae, Ap and Ai normal. 1+1 eyes, color white, no traces of pigments. Dorsal cephalic setae A3, M3, M4, M5 and L and IL series spinelike (Fig. J). Metatrochanteral organ (seta D2) elongate (Fig. G). All ungues with a small inner tooth (figs. K a–c). Tunica present on second and third ungues. All unguiculi with corner tooth and a long apical filament, exceeding apex of unguis. Tenaculum with two setae on anterior unpaired lobe. Dens with 6 dorsal E setae, E1–3 strongly spinelike, E4 spinelike; L1–3 spinelike; D1, D2, Id1, Id2 and Id4 present (Fig. E), Id3 absent; 5 ventral rows of setae (3,2,2,1,1) present. Mucro narrow, gutter­like, both edges serrate (Fig. F). 3+2 cuticular spines on each side of the anal valve, s0 present; setae C1–C8 winged or lamellate but C7 slender, chaetotaxy as in figure I and table 2. Female subanal appendage flattened with fringed apex. Body length of the adult female holotype 0.66mm , head 0.3mm . FIGURE 10. A. botuveraensis sp. n. A, fourth antennal segment; B, apical subsegment of fourth antennal segment; C, apical sensory organ of third antennal segment; D, body setae (a, anterior, b, posterior); E, ventral and dorsal chaetotaxy of the dens; F, mucro; G, metatrochanteral organ; H, tenaculum; I, anal valve chaetotaxy; J, posterior cephalic chaetotaxy; K, foot complex (a, first leg, b, second leg, c, third leg). Distribution: biogeographic zone 29 Remarks: Arrhopalites botuveraensis n. sp. (South Brazil ) belongs to the coecusgroup, it is similar to A. amorimi (Southeast Brazil ) and A. vazquezae ( Mexico ) , despite the disconnected distribution. The new species can be distinguished by the absence of tunica in the first unguis and the indistinctly ringed 5 subsegments of fourth antennal segment.