Tabasconura tapijulapana gen. nov. sp. nov. (Collembola: Neanuridae) from Tabasco, México Author Palacios-Vargas, José G. Author Catalán, Elihú text Zootaxa 2015 3947 1 131 138 journal article 10.11646/zootaxa.3947.1.9 2d3cf64a-e3e2-445e-9c36-c395ec91dc33 1175-5326 234046 F78D3361-9D65-4D30-89FE-A376B47EA9AB Tabasconura tapajulapana sp. nov. ( Figs. 1‒4 ) Type material . Holotype adult female and three juvenile paratypes females. Type locality . México , Cueva de las Sardinas, Tapijulapa, Municipio de Tacotalpa, Tabasco. 17°27’05” N and 92°47’00”, 50 m altitude. Ex litter, 14-III-2002 , Daniel A. Estrada coll. Etymology . The new species is named after the nearest town to the type locality. Description . Length 1.86 mm. Colour white in alcohol (70%). Cuticular granulation strong. Tubercles well developed and slightly elongated on thoracic and abdominal segments ( Figs 1 a,b), lacking seta and tubercle Di on Th. I, body with slightly serrate macrosetae (MB) and slightly serrate microsetae (mb) ( Fig. 3 b), sensorial setae (ss) pattern 022/11111. Tubercles De and DL, fused on Abd. IV; De +DL+L on Abd V. Abd. VI bilobed with slight cryptopygy ( Fig. 1 b). Ant. I with seven setae, four slightly serrate dorsal macrosetae, and others smooth and thin. Ant. II with 11 setae, three slightly serrated and the others thin, smooth. Ant. III sensorial organ with two globular microsensilla under a cuticular fold, two long guard sensilla, and one ventro-external microsensillum. Ant. IV as typical for the tribe with sensilla S7 hypertrophied, S2 also similarly hypertrophied as is S7 ( Fig. 2 b). Eyes 2+2 with black pigment. Head with tubercles well developed ( Fig 1 a). Tibiotarsi I, II and III lacking tenent hairs, with 18, 18 and 17 setae respectively ( Fig. 3 a). Thoracic and abdominal chaetotaxy as in Figs. 1 a and 1b. Total chaetotaxy shown in Table 1 . Labium with 11 pairs of setae ( Fig. 2 a) and labrum typical of the family. Maxilla styletiform lacking molar plate and mandible with two inner teeth, typical of the family ( Figs 3 c,d). Ventral tube with 4+4 setae of similar length. Abd. II ventrally with 5+5 setae, two longer than others. Furcal vestige with only 3+3 macrosetae and 8+8 lateral setae. Each anal valve with 10 macrosetae and 2 microsetae, 4+4 lateral setae two of them slightly serrated ( Fig. 4 a). Genital plate of female, 4+4 pregenital setae, 28 circumgenital setae and 2 eugenital setae ( Fig. 4 b). TABLE 2 . Comparison of characters among Tabasconura tapiculapana gen. nov . sp. nov. and selected species of other genera in Sensillanurini tribe.

Species/character	Setae/ ocular area	Setae/ cephalic De tubercle	Fusion of tubercles DL+L+So on head	Fusion of De+DL on Abd. IV	Fusion of De+DL+L on Abd. V	Setae/Di Abd. V.
Americanura
A. castagnorum Palacios-Vargas, Simón Benito et Paniagua Nucamendi, 2009	1	1	+	+	-	1
A. iztac Palacios-Vargas, Simón Benito et Paniagua Nucamendi, J, 2009	2	2	+	-	-	2
A. prima Cassagnau , et Palacios-Vargas, 1983	3	3	-	-	-	2
Palmanura
P. primigenia Palacios-Vargas, 1986	2	1	-	-	-	1
P. quetzalae Palacios-Vargas, 1984	2	1	-	-	-	1
P. wilsoni Palacios-Vargas, 1996	2	1	-	-	-	1
Sensillanura
S. austriaca da Gama 1963	3	3	-	-	-	2
S. santizaragozai Palacios-Vargas et Catalán, 2010	2	3	+	-	-	2
Tabasconura gen. nov.
T. tapijulapana sp. nov	3	1	+	+	+	1

Note: Numbers are the amount of setae by demitergite, presence or absence of characters are denoted with symbols (+) and (-) respectively. Species for comparison were selected from phylogenetic analyses made by Palacios-Vargas, et al (2009) and Paniagua Nucamendi (2014) .