Friesea santo, Weiner & Bedos & Deharveng, 2009

Weiner, Wanda Maria, Bedos, Anne & Deharveng, Louis, 2009, Species of the genus Friesea (Collembola, Neanuridae) from New Caledonia and Vanuatu, Zoosystema 31 (3), pp. 507-518 : 513-515

publication ID	https://doi.org/ 10.5252/z2009n3a8
persistent identifier	https://treatment.plazi.org/id/EB7AE518-FFB9-FFC5-FEE9-F9B45B927EF0
treatment provided by	Marcus
scientific name	Friesea santo
status	sp. nov.

Treatment

Friesea santo View in CoL n. sp.

( Fig. 3 View FIG )

TYPE MATERIAL. — Vanuatu. Sanma province, Espiritu Santo Island, Butmas, soil in a humid forest at the pass, Berlese extraction, 27.IX.2006, Deharveng & Bedos leg. (sample n° SK06-27-12), ♂ holotype on slide (SK06-27- 12/1, MNHN). — Same data as holotype, 1 ♀ paratype on slide ( ISEA) ; 3 paratypes in alcohol ( MNHN) .

TYPE LOCALITY. — Vanuatu, Sanma province, Espiritu Santo Island, Butmas, soil in a humid forest at the pass.

OTHER MATERIAL EXAMINED. — Vanuatu. Sanma province, Espiritu Santo Island, Butmas, forest near the entrance of Fapon cave, 380 m a.s.l., litter, Berlese extraction, 8.IX.2006, Deharveng & Rahmadi leg., 1 ♂ juv.on slide, 1 ex. in alcohol (sample n° SK06-08-24, MNHN)

ETYMOLOGY. — From the name of Espiritu Santo Island.

ECOLOGY. — Found in litter and soil of the wettest area of the island, in the center of the karst.

DESCRIPTION

Habitus and buccal cone typical for the genus Friesea . Length: 0.75 mm (holotype), 0.64 mm (paratype), 0.65 mm (SK06-08-24). Colour: white in alcohol. Integument secondary granules rather small.

Antennae about ¾ of head length. Antennal segment I with 7 chaetae, antennal segment II with 12 chaetae. Sensory organ of antennal segment III consisting of 2 small subcylindrical internal s-chaetae, 2 subcylindrical guard s-chaetae, and 1 ventral s-microchaeta. Antennal segment IV with 6 subcylindrical s-chaetae (S1-4, S7-8 present), 1 small s-microchaeta placed between S7 and S8, and small subapical organite. Apical vesicle simple ( Fig. 3B, C View FIG ).

Ocelli and postantennal organ absent. Chaetotaxy of labrum: 4/5,3,4 ( Fig. 3E View FIG ). Labium with papillated chaeta L ( Fig. 3E View FIG ).

Dorsal chaetotaxy as in Figure 3A View FIG with rather short, subequal chaetae and longer s-chaetae (subequal on abdominal tergum V), their formula per half tergum: 022/11111. Head with chaetae a0, d0 and 2 chaetae oc. Thoracic tergum I with 4+4 chaetae. Thoracic tergum II with 11+11 chaetae (4 chaetae Di including a2, 4 chaetae De including s-chaeta in third position of the p-row and 3 chaetae DL including 1 s-chaeta), and 1 s-microchaeta in DL. Thoracic tergum III with 10+10 chaetae (same arrangement as previous tergum, but without a2). Thoracic sterna II and III without chaetae. Abdominal tergum V with 2+2 chaetae between schaetae. Abdominal tergum VI with 3 anal spines. Some macrochaetae of posterior terga slightly capitate (most obvious for the macrochaetae of abdominal tergum VI, and for chaetae in position 1 and 3 in p-row of abdominal tergum V). Ventral abdominal chaetotaxy as in Figure 3F View FIG . Ventral tube with 4+4 chaetae. Abdominal sternum II with 5-6+5-6, abdominal sternum III with 5-6+5-6 chaetae Ve. Anal valves each with 3 chaetae hr.

Tibiotarsi I, II and III with 18, 18 and 17 chaetae respectively, of which 11 in distal whorl, without chaetae M ( Fig. 3D View FIG ).Tibiotarsus III without chaeta B7. No clavate tenent hairs. Femora I, II and III with 12, 11 and 10 chaetae respectively, each trochanter with 5 chaetae, coxae I, II and III with 3, 7-8, 8-9 chaetae, subcoxae 2 of legs I, II and III with 0, 2 and 2 chaetae, subcoxae 1 of legs I, II and III with 1, 2 and 2 chaetae. Claw untoothed.

Tenaculum with 2 teeth on each ramus. Furca small, dens with 3 chaetae, mucro absent.

REMARK

Friesea santo n. sp. is the only blind species of the mirabilis group, but some specimens of F. wabao n. sp. from New Caledonia may be devoid of eyes as well. The latter is distinct from F. santo n. sp. in the presence of an additional s-chaeta on the fourth antennal segment. The new species comes also near F. monoculata Dunger, 1972 from Germany in most characters, but number of eyes is 1+ 1 in the latter.