The genera Albanura Deharveng, 1982 and Persanura Mayvan et al., 2015 are no longer monotypic: description of new species from the Caucasus (Collembola, Neanuridae, Neanurinae, Neanurini)
Author
Smolis, Adrian
Author
Kuznetsova, Nataliya
text
ZooKeys
2018
737
1
12
http://dx.doi.org/10.3897/zookeys.737.21191
journal article
http://dx.doi.org/10.3897/zookeys.737.21191
1313-2970-737-1
E5A60FD4289B4B2D86B1C7BB20F0FE78
E5A60FD4289B4B2D86B1C7BB20F0FE78
Persanura lencarana
sp. n.
Figs 14-28, Table 4, 5, 6
Type
material.
Holotype: female on slide, Azerbaijan, Lankaran District, surroundings of Dashdatuk, forest, under stones, 30.I.1985, leg. Expedition of Moscow Pedagogical State University (MSPU).
Etymology.
The name
"lencarana"
refers to a region where the new species was found.
Diagnosis.
Habitus similar to that of
Persanura hyrcanica
. Dorsal tubercles present and well developed. 3+3 pigmented eyes. Buccal cone short and relatively wide, labral sclerifications nonogival. Chaetotaxy of central area of head complete, chaetae A, B, C, D,
E
and O present. Tubercles Dl and (L+So) on head with six and ten chaetae respectively. Tubercles Di on Th. with two chaetae. Tubercles De on Th. II and III with five and six chaetae respectively. Tubercles De on Abd.
I-III
with four chaetae. Tubercles L on Abd. III and IV with five and eight chaetae respectively. Tubercles Di on Abd. V with three chaetae.
Description.
General. Body length of holotype (without antennae): 2.15 mm. Colour of the body bluish. 3+3 small black eyes, in a typical arrangement for the genus (Fig. 14).
Figures 14-28.
Persanura lencarana
sp. n.: 14 chaetotaxy of head and Th. (holotype), dorsal view 15 chaetotaxy of ventrolateral part of head 16 tubercle De of Abd. II 17 tubercle Dl of Th. II, ventral view 18 mandible 19 maxilla 20 furca rudimentary 21 claw and T III, ventrolateral view 22 sensillum sgv and microsensillum of Ant. III 23 apical bulb, dorsal view 24 apical bulb, ventral view 25 dorsal chaetotaxy of Ant.
III-IV
26 chaetotaxy and ventral sclerifications of labrum 27 chaeta Di1 of Abd. IV 28 sensillum of Abd. V.
Chaetal morphology. Dorsal ordinary chaetae of three types: long macrochaetae, short macrochaetae and mesochaetae. Long macrochaetae relatively thin, slightly arc-like or straight, narrowly sheathed, feebly serrated, apically rounded or pointed (Figs 14-17, 27). Macrochaetae Mc morphologically similar to long macrochaetae, but shorter. Mesochaetae similar to ventral chaetae, thin, smooth and pointed. S-chaetae of tergites thin, smooth and short, notably shorter than nearby macrochaetae (Figs 14, 16, 17, 28).
Antennae. Typical of the genus. Dorsal chaetotaxy of Ant.
III-IV
as in Fig. 25 and Table 5. S-chaetae of Ant. IV relatively long and moderately thickened (Fig. 25). Apical vesicle well developed, trilobed (Figs 23, 24). Ventral chaetotaxy of Ant.
III-IV
as Table 5, sgv long and s-shaped (Fig. 22).
Mouthparts. Buccal cone short and wide, with labral sclerifications nonogival. Labral chaetotaxy: 4/2, 4 (Fig. 26). Labium with four basal, three distal and four lateral chaetae, papillae x absent. Maxilla styliform, mandible strong with two basal and four apical teeth (Figs 18, 19).
Dorsal chaetotaxy and tubercles. Chaetotaxy of head as in Figs 14, 15 and Table 4. Tubercle Cl with chaetae D. Chaetotaxy of thorax and abdomen as in Figs 14, 16, 17 and Table 6. Thorax and abdomen without free chaetae (Figs 14, 16). On Abd.
I-III
, the line of chaetae De1-chaeta s perpendicular to the dorsomedian line. Cryptopygy poorly developed, Abd. VI visible from above.
Table 4. Chaetotaxy of
Persanura lencarana
sp. n.: cephalic chaetotaxy, dorsal side.
| Tubercle |
Number of chaetae |
Types of chaetae |
Names of chaetae |
| Cl |
Ml |
| Mc |
| Af |
Ml |
| Mc |
| Oc |
Ml |
| Mc |
| Di |
Ml |
| Mc |
| De |
Ml |
| Mc |
| Dl |
Ml |
| Mc |
| So |
Ml |
| Mc |
| me |
Table 5. Chaetotaxy of
Persanura lencarana
sp. n.: chaetotaxy of antennae.
| Segment, Group |
Number of chaetae |
Segment, Group |
Number of chaetae adult |
| ormoubrsiv |
| ve |
ap |
bsmiA |
| vc |
ca |
bsmiA |
| vi |
cm |
bsmiA |
| cp |
miAbrs |
Table 6. Chaetotaxy of
Persanura lencarana
sp. n.: postcephalic chaetotaxy.
| Terga |
Legs |
|
Di
|
De
|
Dl
|
L |
Scx2
|
Cx
|
Tr
|
Fe
|
T |
| Th |
| Th |
ms |
| Th |
| Abd |
VT |
| Abd |
Ve |
| Abd |
VelFumemi |
| Abd |
VelVecVeiVl |
| Abd |
AgVl |
| Abd |
VeAn |
Ventral
chaetotaxy. On head, groups Vea, Vem and Vep with 4, 3, 4 chaetae respectively (Fig. 15). Group Vi on head with 6 chaetae. On Abd. IV, furca rudimentary with 8 microchaetae devoid of visible chaetopores (Fig. 20). On Abd. V, chaetae Vl and
L'
present.
Legs. Chaetotaxy of legs as in Table 6. Claw without internal tooth. On tibiotarsus, chaeta M present and chaetae B4 and B5 relatively short and pointed, chaeta A6 similarly in length to chaeta B4 (Fig. 21).
Remarks.
Persanura lencarana
sp. n. most visibly differs from
P. hyrcanica
in the presence of a complete chaetotaxy in the central area of the head (reduced chaetae C, E and O absent in
hyrcanica
), the presence of two chaetae Di on Th. I (one chaeta in
hyrcanica
), the presence of three chaetae Di on Th.
II-III
(two chaetae in
hyrcanica
), the presence of four and five ordinary chaetae De on Th. II and III, respectively (two chaetae in
hyrcanica
), the presence of three ordinary chaetae De on Abd.
I-III
(two chaetae in
hyrcanica
), and the presence of three chaetae Di on the penultimate abdominal segment (two chaetae in
hyrcanica
). In addition, they differ in the number of labral chaetae (4/2, 4 in
lencarana
; 0/0, 4 in
hyrcanica
), the presence/absence of chaetae Dl3 on the head (present in
lencarana
; absent in
hyrcanica
), the number of chaetae L of Abd. IV (8 in
lencarana
; 3-5 in
hyrcanica
), and the presence/absence of microchaetae on furca rudimentary (present in
lencarana
; absent in
hyrcanica
).