Revision of the Neotropical species of Aphilodontinae (Geophilomorpha, Geophilidae), with eight new species and a first phylogenetic analysis of the subfamily Author Calvanese, Victor C. Author Brescovit, Antonio D. Author Bonato, Lucio text Zootaxa 2019 2019-11-15 4698 1 1 72 journal article 24882 10.11646/zootaxa.4698.1.1 1c94057f-64de-4f19-b047-2223e4d664e8 1175-5326 3542876 0B4482B9-F89F-45CA-B929-E9B098605CD5 Aphilodon angustatus Silvestri, 1909 ( Fig. 18 ) Aphilodon angustatus Silvestri 1909a: 269 (in key; original description); Silvestri 1909b: 56 (description), plate XI, figs 1–3; Chamberlin 1914: 209 , 153; Attems 1929: 315 (in key), 316 (description); Bücherl 1940: 313 (description); Bücherl 1942b: 213 (new record), 216, 217; Bücherl 1942a: 365 , 368, 369, 371; Pereira 1998: 473 ; Foddai et al. 2000: 105; Pereira et al. 2007: 41 (description, new record), 47 (in table), figs 41-62; Undheim et al. 2011: 515 ; Dugon & Arthur 2012: 129 ; Bonato et al. 2014: 487 (morphology), fig. 9a; Undheim et al. 2015: 681 ; Battirola et al. 2017: 5 , 6 (new record), 8, 9, 10. Type specimens. Syntypes : 1♀ , 1♂ , from “ Corrientes , S. Pedro ( Missiones [sic], Argentina )” ( Silvestri, 1909b ), F. Silvestri col., 1909; deposited in MCSG “ Vase type XVIII”; specimens labeled “a–b” . Type locality. Argentina : Misiones : San Pedro: Corrientes . Material examined. ARGENTINA . Misiones : Corrientes , San Pedro , 1909, F. Silvestri col., 1♀ , 1♂ [syn- types ] (MCSG). BRAZIL . Mato Grosso : Poconé , Pirizal ( 16°16’S , 56°22’W ), 29/02/2004 , J.L. Silva col., 1♀ ( PD G 981 ) . São Paulo : Bananal ( 22°41’01” S , 44°19’24”W ), 2010, J.M. Pereira col., 3♀ , 1♂ ( IBSP 3655 ) ; Caucaia do Alto , Reserva Morro Alto ( 23°41’S , 47°1’W ), 07/2016, V.C. Calvanese col., 2♀ , 1♂ ( IBSP 4065 ) ; Iporanga, Parque Estadual do Alto do Ribeira (PETAR) ( 24°35’08”S , 48°35’35”W ), 2010, J.M. Pereira col., 3♀ , 2♂ ( IBSP 3657 ) ; Paraná , Sangés ( 24°06’46”S , 49°27’49” W ), 5♀ ( IBSP 878 ) . Diagnosis. A species of Aphilodon with: around 53–59 leg-bearing segments; known body length in adults 11–19 mm ; cephalic plate length/width ratio 1.1–1.2; antenna ca. 2 times as long as cephalic plate; pectinate lamella of mandible with straight denticles; coxosternite of second maxillae not distinctly shorter in middle part; forcipular pretergite exposed; telopodite of second maxillae with article 3 shorter than article 2 and with 2 subapical setae and a short sensillum between; forcipule with lateral margin posteriorly straight; tarsungulum ca. 0.8–0.9 times as long as trochanteroprefemur+femur; forcipule with 3+1 denticles; distal denticle of trochanteroprefemur, denticle of femur and denticle of tibia relatively large and denticle of tarsungulum relatively small; distal denticle of trochanteroprefemur and denticle of femur separate; all pleurites conspicuous; each coxopleuron with 6–8 coxal pores in adults; ultimate presternite entire or apparently divided in middle part; metasternite of ultimate leg-bearing segment length/width ratio ca. 0.7; ultimate legs ca. 1.7–1.8 times as long as penultimate legs, with tarsus 1 1.1–1.2 times as long as tibia. FIGURE 18. A–D , Aphilodon angustatus Silvestri, 1909 . Male (IBSP 3655): A , left telopodite of second maxillae, ventral; B , article 3 of second maxillae telopodite, ventro-lateral; C , forcipular segment, ventral; D , terminal part of body, ventral. Scale bars : 0.01 (A–B), 0.3 (C–D) mm. A. angustatus differs from all other species of Aphilodon by having: around 53–59 leg-bearing segments; body length less than 25 mm ; distal denticle of trochanteroprefemur, denticle of femur and denticle of tibia relatively large and denticle of tarsungulum being relatively small ( Fig. 18C ); less than 10 coxal pores on each coxopleuron in adults. Recorded specimens :> 25, including 17 ♀ and 5 ♂ , from 10 localities. Distribution. Argentina—Misiones: Corrientes, San Pedro ( Silvestri 1909b ). Brazil—Mato Grosso: Corumbá, Urucum ( Silvestri 1909b ); Poconé, Pirizal ( Pereira et al. 2007 ); Nossa Senhora do Livramento ( Battirola et al. 2017 ). Brazil—São Paulo: Bananal (new record); Cotia, Caucaia do Alto (new record); Iporanga, Parque Estadual do Alto do Ribeira (new record); “zona araraquarense” ( Bücherl 1942a ). Brazil—Paraná: Sangés (new record). Paraguay—Paraguarì ( Silvestri 1909b ). Known variation. Sternite of the ultimate leg-bearing segment: shorter in middle in all specimens from Parque Estadual do Alto do Ribeira (PETAR) (N= 3♀ , 2♂ ).