Aphilodon indespectus Calvanese & Brescovit & Bonato 2019, new species
Creators: name: Calvanese, Victor C.
name: Brescovit, Antonio D.
name: Bonato, Lucio
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Chilopoda
Geophilomorpha
Aphilodontidae
Aphilodon
Aphilodon indespectus

description: Aphilodon indespectus new species
(Figs 4 D–H, 5A, 21, 22, 39E, 42D)
Type specimens. Holotype: ♀, from Parque Ecológico da Mata da Câmara, São Roque, São Paulo, Brazil 06/2014, V. Calvanese col., deposited in IBSP 3653. Paratypes: 3♀, 4♂, same data as holotype, deposited in IBSP 3653.
Type locality. Brazil: São Paulo: São Roque: Parque Ecológico da Mata da Câmara: 23°31’41”S, 47°6’51”W.
Material examined. BRAZIL. São Paulo: Bananal (22°41’01”S, 44°19’24”W), 2010, J. M. Pereira col., 3♀, 3♂ (IBSP 3654); São Roque, Parque Ecológico da Mata da Câmara (23°31’41”S, 47°6’51”W), 06/2014, V. Calvanese col., 1♀ [holotype] (IBSP 3653), 3♀ and 4♂ [paratypes] (IBSP 3653).
Etymology: The epithet is an adjective and means “invisible”, referring to the difficulty in finding specimens of the species in the field.
Diagnosis. A species of Aphilodon with: around 39–41 leg-bearing segments; known body length in adults 10–19 mm; cephalic plate length/width ratio ca. 1.1; 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; telopodite of second maxillae with article 3 shorter than article 2, with 1 or 2 setae in apical or subapical position and a subapical sensillum; forcipular pretergite exposed; forcipule with lateral margin posteriorly straight; only vestigial forcipular denticles; tarsungulum ca. 0.7 times as long as trochanteroprefemur+femur; all pleurites relatively small and well-separated by membranous regions; each coxopleuron with ca. 10–15 coxal pores in adults, all sparse; ultimate presternite exposed and apparently divided in middle part; metasternite of ultimate leg-bearing segment length/width ratio ca. 0.5–0.6; ultimate legs 1.8 times as long as penultimate legs; tarsus 1 of ultimate legs ca. 2.0 times as long as tibia.
A. indespectus n. sp. differs from all other species of Aphilodon by having only vestigial forcipular denticles (Figs 21A, 22C), and all pleurites relatively small and well-separated by membranous regions (Fig. 21B).
Recorded specimens: 14, including 7♀ and 7♂, from two localities.
Distribution. Brazil—São Paulo: Bananal; São Roque.
Description of holotype. Female (IBSP 3653).
Entire body: length 17, maximum width 0.5. Cephalic plate: more or less oval, length 0.49 and width 0.45 (length/width ratio 1.08), with relative long and sparse SE. Antenna: length 0.9, 2.0 times as long as cephalic plate; AA II–XIII length/width ratio 0.58–0.91; LAA 2.0 times as long as AA XIII.
Clypeus: 4+4 LS, 1+1 PS, 9+9 SCS. Mandible: PL with 14 denticles. First maxillae: left TFM length 0.05 and width 0.04; DA with 2 lateral apical SE; MPC with 2 sub-lateral SE and 1 or 2 little sub-apical SL. Second maxillae: 8 little SE distributed in a row along posterior margin of CSM, between TSM; left TSM length 0.08 (1.86 times as long as TFM) and maximum width (basal margin) 0.04; both TSM with 2 subapical SE and one little SL in apical region.
Forcipular segment: FTE sub-trapezoidal to rectangular, length 0.32 (0.65 times as long as cephalic plate) and maximum width 0.85, with scattered SE; FPT length 0.06 and width 0.69; FCX length 0.28 and width 0.32 (length/ width ratio 0.87); FRL length 0.24, not reaching anterior margin of cephalic plate, with 4 vestigial denticles and with 1 SE in position corresponding to FD1, 5 SE in position corresponding to FD2 and 3 SE in position corresponding to FD3; TA 0.75 times as long as TFF; DT very short, detected only with SEM.
Walking legs: 41 pairs; FL 0.70 times as long as second leg, with procoxae extended to body midline; leg 25 length 0.75. Tergum from the first to penultimate leg-bearing segment: TE rectangular, with slightly rounded edges; TE 25 length 0.28 and width 0.56 (length/width ratio 0.5), with relatively large and scattered SE; PT also elongated, 0.6 times as long as TE, with relatively large and scattered SE. Sternum from the first to penultimate leg-bearing segment: STF oval; other ST elongated; ST 25 length 0.32 and width 0.26 (length/width ratio 1.23); PST visible in most anterior segments, apparently divided up to segment 7, entirely and broadly exposed in middle and terminal part of body.
Ultimate leg-bearing segment: MTL longer than wide, trapezoidal, length 0.11 and width 0.21 (length/width ratio 0.52); UPS entire. Ultimate legs: thin, length 1.1, ca. 1.8 times as long as penultimate leg; each CXP with 12–13 COP, scattered, smallest pore the closest to MTL; tarsus I ca. 2.0 times as long as tibia. Postpedal segments: GF with 2+2 distal SE.
Known variation. Male: ultimate legs thicker and hairy, with tarsus I ca. 1.6 times as long as tibia; GM biarticulated; GM1 with 5–6 SE arranged in 2 rows; GM2 with 6–8 distal SE.
description: Published as part of Calvanese, Victor C., Brescovit, Antonio D. & Bonato, Lucio, 2019, Revision of the Neotropical species of Aphilodontinae (Geophilomorpha, Geophilidae), with eight new species and a first phylogenetic analysis of the subfamily, pp. 1-72 in Zootaxa 4698 (1) on pages 30-31, DOI: 10.11646/zootaxa.4698.1.1, http://zenodo.org/record/3542876