Friesea stampa, Aspe & James, 2017

Aspe, Nonillon M. & James, Samuel W., 2017, Pheretima baracatanensis Aspe & amp; James 2017, new species, Zoological studies 55 (43), pp. 1-26 : 7-9

Friesea stampa sp. nov.

urn:lsid:zoobank.org:act:CB5B03E1-C9B6-423B-A4B6-D0B18B62387C ( Figs. 3 A-E, 8S)

Type material: Holotype: Adult female, on slide, under access number RO-Fr149- IBB, deposited at IBB . Paratypes: two specimens (ROFr111- IBB, 150- IBB, one juvenile and one female respectively), deposited in IBB.

Type locality: Pilugani, Poiana Ştampei village, Suceava County, Romania (47°20'22.408"N, 25°09'22.658"E), 958 m alt., spruce forest, 21.viii.2013, leg. C. Fiera ( IBB).

Etymology: The new species is named after the name of village, Poiana Ştampei, Romania.

Other material examined: Two females from Sinaia locality, Prahova County, leaf litter, 14.xi.12; one specimen (RO-Fr112- ISEA) is deposited in ISEA and one (RO-Fr113) in IBB. Two females collected from Dorna Borcuţ, Suceava County, soil, 21.viii.2013, RO-Fr151- ISEA - deposited in ISEA and RO-Fr 152 in IBB, leg. C. Fiera ( IBB).

Description: Habitus and buccal cone typical for the genus Friesea . Length: Holotype female: 0.60 mm. Paratypes: female 0.57, juvenile 0.46 mm. Colour blue in alcohol. Integument secondary granules rather small.

Antennae about 2/3 of head length. Antennal segment I with 7 chaetae, antennal segment II with 13(12) chaetae. Sensory organ of antennal segment III consisting of 2 small subcylindrical internal s-chaetae, 2 subcylindrical guard s-chaetae and one ventral s-microchaeta. Antennal segment IV with 6 subcylindrical s-chaetae (S1-4, S7-8 present), one small s-microchaeta placed between S7 and S8, and 1 small subapical organite. Apical vesicle simple ( Fig. 3B ).

Ocelli 5 + 5, postantennal organ absent. Chaetotaxy of labrum: 4/5,3,4. Labium with papillated chaeta L ( Fig. 3C ).

Dorsal chaetotaxy as in figure 3A, with relatively long chaetae (longer on hind terga), subequal chaetae and slightly longer s-chaetae (subequal to longest ordinary chaetae on abdominal terga IV-V. Their formula per half tergum: 022/11111. Head with chaetae a0, d0 and 3 chaetae oc. Thoracic tergum I with 3 + 3 chaetae. Thoracic tergum II with 11 + 11 chaetae (4 chaetae Di including a2, 4 chaetae De including s-chaeta in position of p3, 4 Dl including one s-chaeta and one s-microchaeta (ms)). Thoracic tergum III with 10 + 10 chaetae (same arrangement as previous tergum, but without a2 and ms).

Thoracic sterna I-III without chaetae. Abdominal tergum V with 2 + 2 chaetae between s-chaetae. Abdominal tergum VI with 3 anal spines. Ventral abdominal chaetotaxy as in figure 3E. Ventral tube with 4 + 4 chaetae. Anal valves each with 3 chaetae hr on upper and lower valves (on paired valves as microchaetae, on upper valve medial one as microchaeta and two others as mesochaetae).

Tibiotarsi I, II and III with 18,18,17 chaetae respectively, of which 11 in the distal whorl, without chaetae M ( Fig. 1D ). Tibiotarsus III without chaeta B7. Femora I, II and III with 11, 11 and 10 chaetae respectively, trochanters I, II and III with 5, 5 and 5 chaetae, coxae I, II and III with 3, 7 and 7 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. Dens with 3 + 3 chetae (in the juvenile mucro is not present). Chaetotaxy of manubrium as in figure 3E.

Remarks: F. mirceai sp. nov. and F. stampa sp. nov. described above may be grouped with species having 5 + 5 eyes, 3 + 3 chaetae on dens and three anal spines on Abd. VI. Such species are: F. decemoculata described from Italy by Börner (1903), F. decipiens from Spain by Steiner (1958), F. albida recorded from Ukraine, Czech Republik and Poland ( Stach 1949), F. hammeni described from New Guinea by Massoud (1965), F. pati from Alaska ( USA) by Fjellberg (1984), F. kymgangsani and F. onphoriensis from Noth Korea by Weiner and Najt (1985), F. versabilis from Natal, South Africa by Barra (1995), F. pseudodecipiens Arbea and Jordana from Spain (in Jordana et al. 1997) and F. laszloi from Caucasus ( Russia) by Palacios-Vargas and Traser (1997). Among the above mentioned species two types of tibiotarsal chaetotaxy were observed: one with 18, 18 and 17 setae (e.g. in F. stampa ), the other one with 17, 17 and 16 setae (e.g. in F. mirceai ). The most important characters are summarised in table 2.

F. stampa sp. nov. is similar to F. laszloi , especially by the presence of 3 + 3 chaetae on thoracic tergum I, but differs in the chaetotaxy of abdominal tergum IV: the new species has Di with 4 chaetae and De with 4 + s, while F. laszloi has Di with 3 chaetae and De with 2 + s. Antennal segment IV with s-chaetae S1 and S3 thinner in F. stampa and subequal in F. laszloi .

F. mirceai sp. nov. seems to be similar to F. albida , but in the new species mucro is present -generally absent in F. albida , after Jordana et al. (1997). On tibiotarsus chaeta A1 is capitated and longer than the inner edge of claw, while in F. albida it is pointed and as long as the inner edge of the claw.

Figures

Fig. 3. Friesea stampa sp. nov., holotype female (RO-Fr149-IBB). (A) Habitus and dorsal chaetotaxy; (B) Fourth antennal segment; (C) Labium; (D) Tibiotarsal chaetotaxy and claw of leg III; (E) Chaetotaxy of abdominal sterna II-VI and ventral tube. A and E, scale bars = 0.1 mm. B-D, scale bars = 0.01 mm.

Fig. 1. Friesea posada sp. nov., holotype male (RO-Fr3-IBB). (A) Habitus and dorsal chaetotaxy; (B) Fourth antennal segment; (C) Labium; (D) Tibiotarsal chaetotaxy and claw of leg III; (E) Chaetotaxy of abdominal sterna II-VI and ventral tube. A and E, scale bars = 0.1 mm. B-D, scale bars = 0.01 mm.