Revision of the genus Palmanura Cassagnau, 1983 (Collembola: Neanuridae: Neanurinae: Sensillanurini)
Author
Arango, Angela
Author
Palacios-Vargas, José G.
Author
Vázquez, Magdalena
Author
Marín, Elida P.
text
Zootaxa
2018
2018-09-20
4483
1
128
154
journal article
29516
10.11646/zootaxa.4483.1.5
1b92ac05-3931-4afa-959e-a52158aafd23
1175-5326
1437545
6D5FF512-6184-4CD2-A134-30FC112E41A5
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov.
FIgS 12–21
,
TAbS 5–6
Type material.
HOLOTyPE: fEMALE ON SLIdE. PARATyPES: 2 fEMALES ON SLIdES.
Type
locality.
MÉXICO
,
OAxAcA
,
SANTA
CRUz (IxTLáN dE JUáREz), 2550 M
A.S.
L.,
01.V.2006
, LEg. A. BERNAL ROjAS.
Description.
LENgTh (N = 3) 571–798 µM. WhITE. GRANULATIONS MOdERATELy cOARSE, AbOUT hALf ThE SIzE Of ONE EyE. TUbERcLES wELL dEvELOPEd. MOST dORSAL MAcROSETAE PALMATE (PM) (22 µM) ExcEPT fOR ThOSE Of LATERAL TUbERcLE (L), whIch ARE MAcROSETAE bARbULATE (BM) (27 µM), ThE SENSORIAL SETAE (S) (25 µM), vENTER wITh MIcROSETAE (M) (14 µM).
FIGURES 12–15.
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov
.
12, antenna in dorsal view; 13, cephalic chaetotaxy of head and thorax; 14, eyes and seta Ocm; 15, dorsal modified setae on Ant I.
FIGURES 16–17.
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov
.
16, abdominal dorsal chaetotaxy; 17, ventral chaetotaxy of abdomen.
FIGURES 18–21.
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov
.
photos in contrast fase microscope. 18, dorsal body; 19, right antenna and anterior part of head; 20, ocular setae Ocm and eyes; 21, ventral chaetotaxy of Abd IV–VI.
ANT I wITh SEvEN SETAE, ONE dORSAL PALMATE ANd ONE SLIghTLy bARbULATE (
FIgS 12, 15
ANd
19
); ANT II wITh 9 SMOOTh SETAE, MOST Of ThEM ON vENTRAL SURfAcE. ANT III wITh 14 SETAE, SENSORIAL ORgAN wITh TwO gLObULAR MIcROSENSILLA IN A cUTIcULAR fOLd, ANd TwO gUARd SENSILLA. S.g.v SINUOUS, qUESTION MARk ShAPEd, ONE vENTRO–ExTERNAL MIcROSENSILLUM. ANT IV TyPIcAL fOR ThE gENUS wITh S7 hyPERTROPhIEd ANd NO APIcAL bULb (
FIg. 12
).
EyES 2 + 2 wITh bLAck PIgMENT ANd ONLy SETA OcM (
FIgS 14
,
20
). MANdIbLES wITh 2 TEETh, MAxILLAE STyLIfORM. HEAd wITh cLyPEAL, ANTENOfRONTAL, OcULAR, DI ANd DE TUbERcLES wELL dEvELOPEd. LAbRUM wITh 4/2, 2 SETAE. LAbIUM TyPIcAL fOR ThE gENUS. HEAd chAETOTAxy
AS
IN
FIgS 13
,
19
ANd
TAb. 5
.
COxAE I–III wITh 3, 7, 8 SETAE; TROchANTERS wITh 5, 6, 6; fEMORA wITh 12, 11, 11; TIbIOTARSI I, II ANd III wIThOUT TENENT hAIRS, wITh 18, 18, ANd 19 SETAE RESPEcTIvELy. UNgUIS UNTOOThEd. ThORAcIc ANd AbdOMINAL chAETOTAxy
AS
IN
FIgS 13
,
16
ANd
18
. ThE TOTAL bOdy chAETOTAxy IS ShOwN IN
TAbS 5
ANd
6
.
TABLE 5.
Head chaetotaxy of
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov.
| Head setae group |
Tubercles |
Number of setae |
Kind of setae |
Setae |
| Cl+Af |
1 |
2 |
2PM |
B, F |
| Oc |
1 |
1 |
PM |
Ocm |
| Di |
1 |
1 |
PM |
Dil |
| De |
1 |
1 |
PM |
Del |
| DL |
1 |
2 |
2PM |
Dl1, Dl2 |
| L |
1 |
2 |
2M |
| Sc |
- |
8 |
m |
| Total number |
6 |
17 |
TABLE 6.
Thorax and abdomen chaetotaxy of
Palmanura contrerasi
Palacios-Vargas & Arango
,
sp. nov.
by half tergite.
| Thorax & Abdomen DORSAL |
Legs |
| Di |
De |
DL |
L |
Scx2 |
Cx |
Tr |
Fe |
T |
| Th. I |
- |
PM |
BM |
0 |
3 |
5 |
12 |
18 |
| Th. II |
PM |
PM+ss |
BM, ms+ss |
2BM+m |
2 |
7 |
6 |
11 |
18 |
| Th. III |
PM |
PM+ss |
BM, ms+ss |
2BM+m |
2 |
8 |
6 |
11 |
19 |
| Abdomen VENTRAL |
| Abd. I |
PM |
PM+ss |
PM |
BM, m |
VT: 4 |
| Abd. II |
PM |
PM+ss |
PM |
BM, m |
Ve: 3 |
Vel: 0 |
| Abd. III |
PM |
PM+ss |
PM |
BM, m |
Ve: 3 |
Fu: 4 m, 4 mi |
| Abd. IV |
PM |
PM+ss |
PM, BM |
BM, m |
Vei: 1 |
Vec: 1 |
Vel: 4 |
Vl: 4 |
| Abd. V |
PM, BM, M, m |
Ag: 3 |
Vl: 1 |
L': 1 |
| Abd. VI |
7 |
Ve: 11 |
An: 2 mi |
VENTRAL SETAE fOR dEMISTERNITE ARE: 3 POSTLAbIAL, 5 cEPhALIc, 4 IN vENTRAL TUbE, 3 VE ON Ab. II; fOUR SUbEqUAL ON fURcAL TUbERcLE ANd 3 VE (
FIg. 21
); Abd. IV ANd V IN
FIg. 21
ANd
TAb. 6
. FEMALE gENITAL PLATE wITh 3 + 3 PREgENITAL SETAE, 5–9 gENITAL ANd 2 EUgENITAL SETAE. EAch ANAL TUbERcLE wITh 10 SETAE + ONE SETULA. VENTRAL AbdOMINAL chAETOTAxy
AS
IN
FIgS 17
ANd
21
.
Etymology.
ThIS SPEcIES IS dEdIcATEd TO DR. ATILANO CONTRERAS RAMOS, fROM ThE INSTITUTE Of BIOLOgy (UNAM) fOR bEINg ThE fIRST MExIcAN cOLLEMbOLOgIST INTERESTEd IN AqUATIc
COLLEMbOLA
.
Remarks.
Palmanura contrerasi
sp. nov
.
ANd
Palmanura pascuali
PALAcIOS-VARgAS, 1996
, ARE vERy SIMILAR fOR ThE STRONg REdUcTION Of cEPhALIc chAETOTAxy, ThEy hAvE ThE SAME NUMbER Of SETAE, bUT ThEIR ShAPE IS vERy dIffERENT,
P. contrerasi
sp. nov.
hAS A PALMATE SETA F ANd OcM, ANd IN
P. pascuali
ThOSE SETAE ARE bARbULATE ANd MORE AbUNdANT chAETOTAxy ON ThE LATERAL TUbERcLES Of ThE bOdy. ThE NEw SPEcIES IS ALSO SIMILAR TO
P. guilleni
fOR ThE STRONg REdUcTION Of cEPhALIc chAETOTAxy, bUT MAIN dIffERENcES AMONg ThE ThREE SPEcIES ARE IN AbdOMINAL chAETOTAxy (
TAb. 13
).
Variation.
ONE cASE Of ASyMMETRy wAS fOUNd IN ThE LATERAL SETAE Of Abd I, BM + M ON ONE SIdE ANd ONLy BM ON ThE OThER SIdE. ONE PALMATE bIfId SETA wAS fOUNd IN ThIRd AbdOMINAL SEgMENT ON DI TUbERcLE. SMALL vARIATION IN ThE gENITAL SETAE Of ThE PLATE Of ThE fEMALE wAS ALSO NOTEd.