Itanura brasiliensis , Queiroz, Gabriel C. & Deharveng, Louis, 2015

Queiroz, Gabriel C. & Deharveng, Louis, 2015, New genus, new species and new record of Neanurinae (Collembola, Neanuridae) for the Neotropics, Zootaxa 4020 (1), pp. 134-152: 146-151

publication ID

http://dx.doi.org/10.11646/zootaxa.4020.1.5

publication LSID

lsid:zoobank.org:pub:3989C109-39F2-43FA-A5B1-B51B859A1BA4

persistent identifier

http://treatment.plazi.org/id/038187C0-945E-1173-FF31-FAEEFDCB497E

treatment provided by

Plazi

scientific name

Itanura brasiliensis
status

comb. nov.

Itanura brasiliensis  comb. nov., specimens from Serra dos Órgãos, Rio de Janeiro State

Figs 28–34View FIGURE 28View FIGURE 29 – 34

Material examined. Female (# 2313 CM/ MNRJAbout MNRJ), 15.iii. 2012, Queiroz G.C. leg. Deposited at MNRJAbout MNRJ in Brazil. One male (# 2212 CM/ MNRJAbout MNRJ), 10.xi. 2011, Queiroz G.C. leg. Deposited at MNHNAbout MNHN in Paris, France. Locality. Parque Nacional da Serra dos Órgãos (ICMBio), Teresópolis municipality, Rio de Janeiro State, Brazil. 2100 m a.s.l. Local coordinates: 22 º 27 ' 38 "S, 43 º 1 ' 45 "W. Leaf litter and soil of "campos de altitude".

Remarks. Labium with 2 x-papillae visible ( Fig. 30View FIGURE 29 – 34). Head with Af composed of 7–8 tubercles separated from Oc and CL. Leg chaetotaxy of legs I–III as follows: Scx 2 – 0, 2, 2; Cx– 3, 7, 8; Tr– 6, 6, 6; Fe– 13, 12, 11; Tita– 18, 18, 17. Furcal rest with 4 chaetae, devoid of mi; Ve chaetae, on ventral anal valves, 13 ( Fig. 32View FIGURE 29 – 34). For other differences see Table 6.

Discussion. The specimens of the three localities where Itanura brasiliensis  comb. nov. was found are extremely similar, yet differences on important details of chaetotaxy and tubercle development are noteworthy ( Table 6). In this way, they recall the pattern of closely related subspecies within Deutonura deficiens ( Deharveng, 1984)  , suggesting that sampling intermediate locations in this Brazilian region may disclose a complex of parapatric forms (with narrow hybrid or overlapping zones), leading to upgrade these three populations to either subspecies or species level.

ET=elementary tubercle. *one asymmetric specimen with 3 +S on left side and 4 +S on right side and another specimen with 2 +S on left side and 3 +S on right side.

TABLE 6. Main differences between specimens of Itanura brasiliensis comb. nov. from the studied localities.

  Itajubá – MG (type locality) Itatiaia – RJ Serra dos Órgãos – RJ
N of ET on DL of head 5 6 5
N of ET on (L+So) of head 3–4 5 3
N of ET on De of Abd I–III 1–2 3–4 3–4
De2 of Abd I–III / tubercles out on edge on edge
N of chaetae De+DL of Abd V 3+S* 3+S 4+S
N of chaetae VL(+?L) of Abd V 2 3 3

TABLE 6. Main differences between specimens of Itanura brasiliensis comb. nov. from the studied localities.

  Itajubá – MG (type locality) Itatiaia – RJ Serra dos Órgãos – RJ
N of ET on DL of head 5 6 5
N of ET on (L+So) of head 3–4 5 3
N of ET on De of Abd I–III 1–2 3–4 3–4
De2 of Abd I–III / tubercles out on edge on edge
N of chaetae De+DL of Abd V 3+S* 3+S 4+S
N of chaetae VL(+?L) of Abd V 2 3 3
MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MNHN

Museum National d'Histoire Naturelle