Palmanura axelretanai Palacios-Vargas & Arango, 2018

Arango, Angela, Palacios-Vargas, José G., Vázquez, Magdalena & Marín, Elida P., 2018, Revision of the genus Palmanura Cassagnau, 1983 (Collembola: Neanuridae: Neanurinae: Sensillanurini), Zootaxa 4483 (1), pp. 128-154 : 139-141

Palmanura axelretanai Palacios-Vargas & Arango , sp. nov.

FIgS 22–26 , TAbS 7–8

Type material. HOLOTyPE: fEMALE. PARATyPES: 2 fEMALES.

Type locality. COSTA RICA, TURRIALbA, FOREST cLOSE TO CATIE, Ex LITTER, 18.VII.2010, LEg. J. G. PALAcIOS-VARgAS.

Description. LENgTh 848 µM. WhITE. GRANULATION fINE. TUbERcLES NOT wELL dEvELOPEd. BOdy dORSALLy wITh PALMATE MAcROSETAE (PM) (40 µM) (40 µM–57 µM), fEw bARbULATE MAcROSETAE (BM) (32) (32 µM–46 µM) ANd SENSORIAL SETAE (S) (14 µM) (14 µM–24 µM), vENTER wITh MIcROSETAE (M) (12 µM) (12 µM–17 µM).

ANTENNA vERy ShORT. ANT. I wITh SEvEN SETAE, ThREE dORSAL STRONgLy PALMATE, ANT II wITh 11 SETAE. ANT III wITh 16 SETAE, SENSORIAL ORgAN wITh TwO gLObULAR MIcROSENSILLA IN A cUTIcULAR fOLd, ANd TwO gUARd SENSILLA. S.g.v vERy SINUOUS, ONE MIcROSENSILLUM vENTRO–ExTERNAL. ANT IV TyPIcAL fOR ThE gENUS ( FIg. 22 ) wITh S7 hyPERTROPhIEd ANd cURLINg MAkE A cOMPLETE ROUNd, OThER SENSILLA ALSO STRONgLy cURvEd.

EyES 2 + 2 vERy dIffIcULT TO dISTINgUISh. MANdIbLES wITh 2 TEETh, MAxILLAE STyLIfORM. LAbIUM wITh SETAE A–G ORdINARy. LAbRUM wITh 2/0, 4 SETAE. HEAd ANd ThORAcIc chAETOTAxy AS IN FIg. 23 ANd TAb. 7.

TIbIOTARSI I, II ANd III wIThOUT TENENT hAIRS, wITh 18, 18, ANd 17 SETAE RESPEcTIvELy ( FIg. 24 ). UNgUIS UNTOOThEd. ThORAcIc ANd AbdOMINAL chAETOTAxy AS IN FIg. 23 ANd 25 ; TAbLES 7 ANd 8. DORSAL AbdOMINAL chAETOTAxy AS IN FIg. 25 ANd TAb. 8. VENTRAL TUbE wITh 4 + 4 SETAE, ONE Of EAch SIdE LONgER ThAN OThERS ( FIg. 26 ). FEMALE wITh 3 + 3 PREgENITAL SETAE, 11 cIRcUMgENITAL ANd 2 EUgENITAL SETAE. VENTRAL AbdOMINAL chAETOTAxy AS IN FIg. 26 .

Etymology. ThE SPEcIES IS dEdIcATEd IN MEMORy Of DR. AxEL RETANA, RESEARchER Of ThE UNIvERSITy Of COSTA

RIcA, fOR hIS hELP IN jOINEd RESEARch wITh MEMbERS Of UNAM

Remarks. P. axelretanai sp. nov. hAS A MORE AbUNdANT chAETOTAxy whEN cOMPAREd wITh OThER SPEcIES Of ThE gENUS, IT hAS SOME AddITIONAL MIcROSETAE IN SOME bOdy SEgMENTS, SO IT IS MORE SIMILAR TO A. primigenia . BOTh SPEcIES hAvE A SIMILAR hEAd chAETOTAxy ANd hAvE TwO dORSAL SETAE ON dORSO–INTERNAL TUbERcLE Of AbdOMINAL SEgMENTS I–III. bUT ThE NEw SPEcIES hAS TwO PALMATE MAcROSETAE ON TUbERcLE DL. ON TUbERcLES DI Of Th II ANd III P. primigenia hAS ThREE SETAE, whILE P. axelretanai sp. nov. hAS ONLy ONE, ANd DL TUbERcLES ON AbdOMINAL SEgMENTS I– III hAvE ONE ANd TwO SETAE RESPEcTIvELy. MORE dIffERENT IS ThE chAETOTAxy Of Abd IV ANd V AS SEEN IN TAb. 13.

Figures

FIGURES 22–26. Palmanura axelretanai Palacios-Vargas & Arango, sp. nov. 22, dorsal chaetotaxy of Ant I–IV; 23, head and thorax chaetotaxy; 24, tibiotarsi III; 25, dorsal chaetotaxy of abdomen; 26, ventral abdominal chaetotaxy.