Protaphorura lucense, Arbea, 2015

Arbea, Javier I., 2015, New Onychiurinae (Collembola ¡ Onychiuridae) from Lugo, northwestern Iberian Peninsula., Arquivos Entomolóxicos 14, pp. 235-244 : 236-237

Protaphorura lucense sp. nov.

( Figs. 1–10 , Tables I –III, VII)

Type locality. Baamonde, Lugo, Galicia ( Spain). UTM 29TPH08, 400 m a.s.l.

Type material.

Holotype ¡ Female mounted on slide¡ Spain, Baamonde, Lugo (Galicia), 400 m a.s.l., leaf litter, 12.IX.2003, S. Montagud leg. Paratypes ¡ Two females and two juvenile specimens mounted on slides collected together with Holotype . Holotype and Paratypes deposited in MNSV .

Etymology. The name refers to Lugo, the province of the type locality.

Description.

Colour in alcohol, yellowish white. Length without antennae¡ females 1.36–1.49 mm. Body shape cylindrical, with anal spines set on distinct papillae.

Antennae approximately as long as head. Granulation more or less uniform, distinct. Base of antenna well marked. Antennal segment IV with subapical organite. Microsensillum on antennal segment IV in latero-external position, ca. 1/3 length from the base. Antennal III sense organ built of 5 papillae, 5 guard chaetae, 2 sensory rods, 2 straight and granulated sensory clubs and lateral microsensillum (ms) ( Fig. 9 ). Ant I with 11 chaetae. Ant II with 19 chaetae.

PAO composed of 28–33 simple vesicles ( Fig. 3 ). 4+4 p-chaetae between postero-internal pso on heAd (p1’, P1, p2, P3; Fig. 1 ). MAndible with strong molAr plate and 4 apical teeth. Maxilla bearing 3

teeth and 6 lamellae. Maxillary palp simple with 1 basal chaeta and 2 sublobal hairs. Labral chaetae formula 4/342. Labium with 6 proximal, 4 basomedian (E, F, G and f) and 6 basolateral chaetae; labial type A. Postlabial chaetae 5–6+5–6 along ventral groove ( Fig. 2 ).

Pseudocellar formula dorsally¡ 43/022/33343(2), ventrally¡ 1/000/00000 ( Figs. 1 & 2 ); subcoxa

1 of legs with 1,1,1 pso respectively.

Dorsal chaetotaxy as in Fig. 1 and Tables I — III, usually with some asymmetry, well differentiated into acuminate micro and capitate meso and macrochaetae ( Fig. 4 ). Sensilla weakly marked, with blunt apex ( Fig. 4 ). Th II and III terga with microsensillum laterally. Th I tergum with 10–13 chaetae (chaetotaxy type i(1) 3m). Abd I –III And V tergA without s’ ( Fig. 1 ). Abd IV and V terga with p0 axial chaeta, Abd VI tergum with p0 and generally a0 axial chaetae ( Figs. 1 & 7 ). Ratio M /sp on Abd V as 2.4–3.1 ( Fig. 7 ). Ratio M / AS as 1.7–2.0. Straight lines, passing through the bases of chaetae a1 and m1 situated above anal spines, subparallel ( Fig. 7 ) .

Ventral body chaetotaxy as in Fig. 2 . Between legs on pro-, meso- and metathorax 1+1, 1–2+1–2 and (1)2+2 chaetae respectively. Ventral tube with about 9+9 distal chaetae and 2+2 chaetae at the base. Furca reduced to cuticular pocket with 2+2 setulae – 1+1 setulae located on a cuticular fold, remaining 1+1 setulae set located distinctly below of the fold; three manubrial rows of chaetae present posteriorly to dental chaetae ( Fig. 1 ). Anal valves with numerous acuminate chaetae; each lateral valve with a0, 2a1 and 2a2; upper valve with chaetae a0, 2a1, 2b1, 2b2, c0, 2C1 and 2c2 ( Fig. 8 ).

Appendages. Subcoxa 1 of legs I–III with 6, 6 and 5–6 chaetae, subcoxa 2 with 1, 5 and (4)–5 chaetae, respectively. Tibiotarsi of legs I–III with 21 (11, 8, 2), 22–23 (11, 8, 3–4) and 23–24 (11, 8, 4–5) chaetae, respectively, of wich 2,2,2 slightly capitate macrochaetae on basal row (R chaetae). Claws with inner denticle ( Fig. 10 ). Empodial appendage slender and pointed, without basal lamella, as long as inner edge of the claw. Anal spines set on distinct papillae, 0.9–1.0 times as long as inner edge of unguis.

Figures

Figs. 1-10.- Protaphorura lucense sp. nov.¡