Intricatonura fjellbergi, Smolis & Bernard, 2017

Smolis, Adrian & Bernard, Ernest C., 2017, Intricatonura fjellbergi, a new peculiar genus and species of Neanurini (Collembola: Neanuridae: Neanurinae) from Great Smoky Mountains National Park, Florida Entomologist 100 (4), pp. 725-730 : 728-729

Intricatonura fjellbergi sp. nov. ( Figs. 1–14 ; Tables 1, 2)

HOLOTYPE 1 female USA: Tennessee, GSMNP, trail W of Clingman’s Dome (35.5628°N, 83.5042°W; 1981 masl), from moss and fir litter, 7– VI–2007, A. Fjellberg ( USNM).

PARATYPES 1 male and 1 female, data same as Holotype ( DIBEC) .

Description. Body length (without antennae): 0.7–0.9 mm (holotype: 0. 9 mm). Body color diffuse greyish–blue. 3 + 3 medium-sized, pigmented eyes,on the margin of tubercle Oc ( Fig. 1 ). Long macrosetae (Ml) notably short and thin, smooth, apically pointed ( Fig. 14 ); short macrosetae (Mc) short and thin, pointed at apex; mesosetae short, very thin and pointed. Buccal cone short, labrum rounded, with feebly ventral sclerification ( Figs. 2, 3 ). Chaetotaxy of antennae as in Figs. 6–8 . Ant. I, II with 7, 11 ordinary setae respectively. Ant. III with 5 S-setae ( AOIII) and 17 ordinary setae: 4 d, 4 vi, 4 vc and 5 ve. Ant. IV dorsally with the complete set of setae: 8 S, or, i, 12 mou and 3 brs. Apical vesicle of Ant. IV distinct and consists of 2 lobes ( Fig. 7 ); s-setae on Ant. IV rather short and moderately thickened ( Figs 6, 8 ). Ant. IV ventrally with complete set of setae (3 brs, 2 iv; ap: 8 bs and 5 miA; ca: 2 bs and 3 miA; cm: 3 bs and 1 miA; cp: 8 miA and 1 brs). Head tubercle ( DL + L + So) with 11 setae; seta D not fused with tubercle Af; seta O present or Region Genera

Western Palaearctic Albanura Deharveng , Balkanura Cassagnau , Cansilianura Dallai & Fanciulli , Catalanura Deharveng , Caucasanura Kuznetzova & Potapov , Cryptonura Cassagnau , Deutonura Cassagnau , Edoughnura Deharveng et al. , Endonura Cassagnau , Ghirkanura Kuznetzova & Potapov , Lathriopyga Caroli , Monobella Cassagnau , Neanura MacGillivray , Neanurella Cassagnau , Persanura Mayvan et al. , Protanura Börner , Pumilinura Cassagnau , Thaumanura Börner

Eastern Palaearctic Deutonura Cassagnau , Endonura Cassagnau , Metanura Yosii , Neanura MacGillivray , Kalanura Smolis , Tetraloba Lee

Nearctic Deutonura Cassagnau , Endonura Cassagnau , Neanura MacGillivray , Xylanura Smolis , Intricatonura gen. nov.

Oriental Neanura MacGillivray , Vietnura Deharveng & Bedos absent; seta A slightly shorter than seta B ( Figs. 1, 9, 10 ; Table 1). S-seta formula of body 022/11111 ( Figs. 1, 11 ; Table 2). Body S–setae slender, smooth, equal to or longer than nearby macrosetae ( Figs. 1, 11, 13 ). Lateral (L) tubercles on Th. II and III with 3 setae ( Fig. 1 ). Tubercle L on Abd. IV with 6 setae (1 seta not fused with tubercle, Fig. 12 ). Abd. VI with 6+6 setae ( Table 2). Ventral chaetotaxy of abdomen as follows: ventral tube with 4+4 setae; Abd. II with 4+4 setae Ve (setae Ve1 present); Abd. III with 4+4 setae Vel, furca rudimentary with 2 mesosetae and without microsetae ( Fig. 12 ); Abd. IV with 4+4 setae Vl, 3–4+3–4 setae Vel, 2+2 setae Vec and 2+2 setae Vei; Abd V with 3+3 setae Ag, 1+1 setae L’ and 1+1 setae Vl; each anal lobes with 10–11 mesosetae and 2 microsetae. Chaetotaxy of legs from I to III as follows: tibiotarsi with 18, 18, 17 setae respectively (seta M absent); femora I, II, III with 13, 12, 11. Trochanters with 6 setae each. Coxae I, II, III with 3, 7, 8; subcoxae I, II, III with 0, 2, 2 setae, respectively. Claw relatively short, without inner denticle.

Remarks. The new species most closely resembles Vietnura caerulea Deharveng & Bedos, 2000 , the sole species of this also monotypic genus. The differences between them are presented in the generic discussion.

Etymology. The new species is named in honor of Arne Fjellberg, eminent Norwegian collembologist and collector of the specimens.

Figures

Figs. 1–14. Intricatonura fjellbergi sp. nov. 1) Chaetotaxy of head, thorax and Abd. I, dorsal view of holotype; 2) Chaetotaxy of labium and Vi-group setae; 3) Labrum; 4) Mandible; 5) Maxilla; 6) Chaetotaxy of ant. III–IV, ventral view; 7) Apical vesicle, dorsal view; 8) Chaetotaxy of antennal segments III–IV, dorsal view; 9) Chaetotaxy of lateral part of head, dorsal view; 10) Chaetotaxy of lateral part of head, ventral view; 11) Chaetotaxy of Abd. III–V, dorsal view; 12) Chaetotaxy of Abd. II–V, ventral view; 13) Seta s of abdomen V; 14) seta Di1 of Abd. V.