A new species of Pronura (Neanuridae: Paleonurini) from the Luquillo Mountains Puerto Rico with a key to American poorly tuberculated Paleonurini Author Ospina-Sánchez, Claudia M. USDA-FS, International Institute of Tropical Forestry, Río Piedras, Puerto Rico 00926 - 1119. Author Palacios-Vargas, José G. Laboratorio de Ecología y Sistemática de Microartrópodos, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, 04510 México, D. F., México. troglolaphysa @ hotmail. com Author González, Grizelle USDA-FS, International Institute of Tropical Forestry, Río Piedras, Puerto Rico 00926 - 1119 grizelle. gonzalez @ usda. gov text Zootaxa 2021 2021-07-06 4996 3 581 590 journal article 10.11646/zootaxa.4996.3.10 1175-5326 5074492 B3119EFA-F239-485A-84EF-5DD2B34D3B8D Pronura yunquensis sp. nov. Ospina-Sánchez, Palacios-Vargas and González Figs.1–7 , Tables 1A–C Diagnosis of the species: This is the first Neotropical species without eyes and the combination of the following characters: head tubercles De, DL and O present, setae D and Ocp absent. Abd IV with Di1 shifted toward De. Abd V Di2 is close to the middle line and De+DL are fused with two thick macrosetae, one sensillum, one pointed macroseta, and one microseta. Type material: Holotype : male on slide. Paratypes : 2 males , 1 female on slides. All type material kept at corresponding author’s institution. Type Locality: Puerto Rico , Fajardo , Pico del Este , 18° 16’ 17”N , 65 °45’ 40”W ; 987 m a.s.l; Tabebuia rigida forest type , 19.ii.2015 . Puerto Rico , Luquillo , Toro Trail 18° 16’ 40”N , 65 °50’ 53”W ; 815 m a.s.l; Cyrilla racemiflora forest type , 19.ii.2015 . Other material: 1 immature on slide, Puerto Rico , Luquillo , Yunque Peak 18° 18’ 37”N , 65 °47’ 26”W 1045 m a.s.l. ; Tabebuia rigida forest type , 4.xi.2014 . 1 immature on slide, Puerto Rico , Fajardo , Pico del Este , 18° 16’ 17”N , 65 °45’ 40”W ; 987 m a.s.l; Tabebuia rigida forest type , 4.xi.2014 . C. M. Ospina–Sánchez Coll. Description: Length adult n=4, 0,895 mm (0,769–1,02); immature n=2, 0,64 (0, 598–0,682). Color in alcohol white. Granulation fine. Only dorso-lateral tubercles on Abd III, IV and V well developed. Body clothing comprising microsetae (less than 1µm ); mesosetae ( 1–2µm ); thick, hyaline macrosetae ( 3–5µm ), and acuminate macrosetae ( 4–5µm ), in addition to sensorial setae ( 3–4µm ) ( Fig.1 ) FIGURE 1. Pronura yunquensis sp. nov . Dorsal body chaetotaxy. FIGURE 2–6 . Pronura yunquensi s sp. nov . 2 Antenna dorsal chaetotaxy; 3. Antenna ventral chaetotaxy; 4. Labrum; 5. Labium; 6. Leg I. FIGURE 7 . Pronura yunquensis sp. nov . Ventral abdominal chaetotaxy. Head. Antenna shorter (ratio head: antenna: 1:0.47) than head diagonal. Ant III and IV fused dorsally, ventral separation well marked. Ant IV dorsally with eight subequal sensilla, twelve long and pointed setae, apical organ differentiated, subapical bulb absent ( Fig. 2 ). Ant III dorsally with two globular sensilla in a cuticular fold and two guard sensilla. S.g. v. almost straight and subequal to S.g.d.; one ventral microsensillum ( Fig. 3 ). Ant II with eleven setae. Ant. I with seven setae, including three macrosetae with blunt tips ( Fig. 2 ). Eyes absent. Head with three pairs of weakly delimited tubercles, and dorsal chaetotaxy as in Fig. 1 and Table 1A . Mandibles styletiform, maxillae with a hook shape. Labrum elongate, rounded apically; formula 0/2,4 ( Fig. 4 ). Labium with ten pairs of setae ( Fig. 5 ). Four setae Vi on ventral side of head ( Fig. 5 ), head ventral chaetotaxy in Table 1B . Thoracic and abdominal dorsal chaetotaxy as in Fig. 1 and Table 1C . Abd VI unilobed, lacking tubercle. Setal numbers on legs as in Table 2 . Unguis without inner teeth ( Fig. 6 ). Ventral tube with 4+4 setae. Furcal vestige with two regular setae and one microsetae. Ventral chaetotaxy as shown in Table 1C and Fig.7 . Male genital plate with 3+3 pregenital, twelve circumgenital and four pairs of eugenital setae. Each lateral anal valve with eleven regular setae and two microsetae ( Fig. 7 ). Etymology: yunquensis is a reference of the locality were the species was found on mountain peaks at El Yunque National Forest in Puerto Rico . TABLE 1. Complete chaetotaxy of Pronura yunquensis sp. nov . per semi–tergites. A. Cephalic chaetotaxy—dorsal side.
Head setae group Tubercles Number of setae Seta Type Setae
Cl 1 M F
1 m G
Af 2 me, m AB
1 m C
Oc + 1 M Ocm
+ 1 mi Oca
Di 2 m Di1,Di2
De + 1 M De1
+ 1 mi De2
DL + 3 2M, mi DL1, DL2
L+Sc1 7 4M, 3me L1–4
Total 1 20
Vi
Vea
Vem
Vep
labium
C. Postcephalic, dorsal, ventral and leg chaetotaxy
Thorax Dorsal Legs
Di De DL L Scx2 Cx Tr Fe Ti
Th. I me me M 3 6 14 19
Th. II 2me M,mi+ss M,mi+ss M,2me 6 6 12 19
Th. III 1mi, 2me M,mi+ss M,mi+ss M,2me 8 6 10 18
Abdomen Dorsal Abdomen Ventral
Abd. I mi, me mi+ss me, mi M,me, mi VT:4+4
Abd. II mi, me mi+ss M, me M,me, mi Ve: 4
Abd. III mi, me M+ss M,me+ss M, me, mi Ve:3 Fu:3*
Abd. IV mi,me 2M+S 2M. 2mi Vel:4 Vec:2 Vei: 1 Vl:4
Abd. V mi 3M+mi+S M Ag:3 Vl:1 L’:2
Abd. VI 3M, me, 2mi Ve: 11me+2mi
*setae in Fu not paired.