A new species of Campylothorax Schött, 1893 (Collembola, Paronellidae) from Brazilian Amazon, with an identification key to the genus Author Cipola, Nikolas Gioia Author Oliveira, Fábio Gonçalves De Lima text Zootaxa 2016 4109 4 487 495 journal article 39102 10.11646/zootaxa.4109.4.7 96e333d8-e224-46db-9f0b-85989951518c 1175-5326 399749 DF09279C-9686-48A6-A84C-3BF866041A44 Key to world species of the genus Campylothorax 1 Th II with at least 6 posterior mac; Th III apically round..................................................... 2 - Th II with 2 posterior mac; Th III apically conic................. C. notidanus Soto-Adames, 2016 ; Dominican Republic 2 Body with varied color or devoid; Abd IV with up to 6 median central mac or absent............................... 3 - Body anteriorly and dens black; Abd IV with 6–9 median central mac....... C. melanocephalus Mitra & Dallai, 1980 ; Zaire 3 Body color completely dark blue........................................................................ 4 - Body color pattern varied, absent or with transverse or longitudinal bands on Abd III–IV ( Fig. 1 )..................... 6 4 Sutural series of head with S2 and S3 mac ( Fig. 8 ).......................................................... 5 - Sutural series of head devoid of S2 and S3 mac............................ C. mitrai Bellini & Meneses, 2012 ; Brazil 5 Abd IV with 5 lateral mac; unguis without unpaired tooth........ C. dominicanus Soto-Adames, 2016 ; Dominican Republic - Abd IV with 7–8 lateral mac; unguis with unpaired median tooth ( Figs 24–25 )................ C. sabanus ( Wray, 1953 )3,4 6 Abd IV color with transverse bands ( Fig. 1 )............................................................... 7 - Abd IV without transverse bands; body color diffuse, absent or with longitudinal bands from Th II to Abd IV........... 12 7 Abd IV with 1 transverse band ( Fig. 1 ).................................................................... 8 - Abd IV with 2 transverse bands; Cuba ........................................ C. cubanus Gruia, 1983 ; Puerto Rico 8 Abd III without transverse bands; unguiculi III lanceolate..................................................... 9 - Abd III with 1 transverse bands; unguiculi III truncate ( Figs 1 , 25 ).............................................. 10 9 Abd IV with 6 anterior central mac on one transverse row and 7 posterior central mac... C. cinctus Schött, 1927 ; Cameroon - Abd IV without transverse row of mac and 4 posterior central mac............. C. cassagnaui Mitra & Dallai, 1980 ; Brazil 10 Abd IV with slim complete transverse band; Abd IV with 5 or less posterior central mac ( Figs 1 , 20 )................. 11 - Abd IV with irregular transverse band occupying more than half of the segment; Abd IV with 6 posterior central mac........................................................................... C. sabanus ( Wray, 1953 )3,4; Puerto Rico 11 Dorsal head without S 5i mac; Abd IV with 5 lateral mac; dens with 2 row of distal spines ( Figs 3 , 15 , 24 ).............................................................................................. C. plagatus sp. nov. ; Brazil - Dorsal head with S 5i mac; Abd IV with 8 lateral mac or more; dens with 1 row of distal spines................................................................................. C. viruaensis Santos, Cipola & Bellini; Brazil (in press) 12 Body color diffuse or with longitudinal bands.............................................................. 13 - Body without pigment; Th II with 6 posterior mac............... C. hexosetosus Soto-Adames, 2016 ; Dominican Republic 13 Abd V–VI with pigment.............................................................................. 14 - Abd V–VI depigmented............................................................................... 15 14 Body color with longitudinal band laterally on Th II to abd IV; furcula with dark pigment.. C. schaefferi Börner, 1906 ; Brazil - Body color completely diffuse, Th II fully pigmented; furcula depigmented; Puerto Rico .. C. sabanus ( Wray, 1953 )1,2; Brazil 15 Dens with 1 row of dental spines.......................................... C. longicornis Schött, 1893 ; Cameroon - Dens with 2 row of dental spines.......................................... C. camelinus Womersley, 1930 ; Guiana