On the genus Paleonura (Collembola: Neanuridae: Neanurinae) from the Americas and description of a new species from Puerto Rico Author Soto-Adames, Felipe N. text Zootaxa 2017 2017-07-07 4318 2 388 394 journal article 32171 10.11646/zootaxa.4318.2.11 5b729d4e-afc0-4cfc-9783-07f9662bae4a 1175-5326 886727 Cb56Aad1-6Aa4-4866-A643-D832B045Ab79 Paleonura borincana sp. nov. Figs. 1–6 , Tables. 1–2 Type material. Holotype : female, microscopic slide preparation ( INHS Insect Collection acc. # 551,630), Puerto Rico : Maricao , Monte del Estado Commonwealth Forest , Road PR-120, N 18.14396 , W 66.97789 , leaf litter in woods across entrance to old recreational area; 22.vi.1999 . F. Soto-Adames , coll. Paratypes : one female ( INHS acc. #551, 631), on microscope slide with same collection information as holotype ; one male and one female ( INHS acc. #’s 551, 632 and 551,633, respectively), microscope slide mounted, Puerto Rico : Caribbean National Forest , Pico del Oeste , 820–880 m above sea level , N 18.28 , W 65.77 , sierra palm forest litter associated with dwarf forest, 24.i.2001 , B.A. Richardson & M.J. Richardson , coll. The holotype and one paratype are deposited in the insect collection of the Illinois Natural History Survey ( INHS ). Two paratypes remain in the collection of the senior author at the Universidad Nacional Autónoma de México , Mexico City . Type locality. Puerto Rico : Maricao , Commonwealth Forest . Etymology. Demonym for Borinquen, Spanish language corruption of the original Native American name for the island of Puerto Rico . Description. Length, 1.6 mm (n = 4). Color in alcohol white. Granulation fine, smaller than eye diameter. Only dorso-external tubercles on Abd. IV and V well developed. Body setae comprising microsetae; thick, hyaline, capitate macrosetae, and acuminate macrosetae, in addition to sensorial setae ( Fig. 2 ). Ant. I with 7 setae, 3 dorsal with blunt tips. Ant. II with 11 setae, dorsal setae thicker and longer than ventral setae, 2 with blunt tips. Ant. III with 1 ventral microsensillum; sensorial organ with 2 globular sensilla in a cuticular fold and 2 guard sensilla; S.g. v. almost straight and longer than S.g.d. Ant. IV typical for the genus ( Fig. 1 ), with all sensilla subequal in size and shape, 12 long acuminate setae, 1 small setae (i), 1 organite, and without subapical bulb. Ventrally on Ant. IV with setae br 3,4,5 and 6, and 3 cp (not drawn). Eyes 2 + 2. Mandibles with two thin and long teeth, maxillae styliform. Head without well developed tubercles, chaetotaxy as in Fig. 2 . Labium with 9 pairs of setae. Ventral chaetotaxy of head with four setae Vea, 2 setae Vem and 6 setae Vep (not illustrated). Chaetotaxy of legs 1–3 as follows: coxae with 3,7,7 setae; all trochanters with 5 setae; femora with 12,12, 11 setae; tibiotarsi with 19,19, and 18 setae ( Fig. 3 , seta M not shown). Unguis without teeth. Thoracic and abdominal dorsal chaetotaxy in Figs. 2 and 4 , dorsal tubercles not well developed. Group of setae De on Abd. V only with one sensorial seta ( Fig. 5 ). Chaetotaxy by demitergite as in Table 1 . Ventral tube with 4 + 4 setae. Furcal vestige with only 3 setae. Ventral chaetotaxy reduced as shown in Figure 6 and on Table 1 . Furcula vestige with 3 setae. Female genital plate with 3+3 pregenital, 8–9 circumgenital and 2 eugenital setae. Each lateral anal tubercle with 12 setae and 2 microsetae, posterior one with one pair of setae. Abdominal sternites with strong chaetotaxy reduction ( Fig. 6 and Table 1 ). Variation. One individual from Maricao has one additional supernumerary seta on head tubercle De. FIGURES 1–3. Paleonura borincana sp. nov . 1, antenna I–IV, dorsal view; 2, chaetotaxy of head and Th. I–II; 3, tibiotarsus III (seta M omitted). Remarks. Paleonura borincana sp. nov. is unique among the members of the genus in having the combination of cephalic setae A and B, two ocular setae and the absence of setae on the dorso-extenal tubercle of Abd. IV (only the sensorial seta remains). It resembles P. carayoni Massoud & Thibaud, 1987 , from Guadalupe Island, but this species has only one ocular seta and 4 setae on the Di-De fused tubercle of Abd. V, while the new species has only 3 setae, in addition, Paleonura borincana sp. nov. measures 1.6 mm and P. carayoni is, at most, 1.0 mm long. FIGURES 4–6. Paleonura borincana sp. nov . 4, chaetotaxy of Th. III–Abd. VI; 5, dorsal chaetotaxy of Abd. IV–VI, 6, Abd; ventral chaetotaxy of Abd. I–VI. TABLE 1. Complete chaetotaxy of Paleonura borincana sp. nov . per demi-tergites. Head

Head setae group Cl Af	Tubercles - -	Number of setae 2 4	Seta Type M, m M, m	Setae FG ABCD
Oc Di De	- - -	2 1 3	m, M M M, m	Oca, Ocm Di1 De1, Di2, De2
DL+L+Sc Total	-	9 22	5M, 4m

Postcephalic, ventral and leg chaetotaxy of Paleonura boricana sp. nov. Thorax Legs