Hylaeanura emiliae, Ospina-Sánchez & Palacios-Vargas & González, 2020

Ospina-Sanchez, Claudia M., Palacios-Vargas, Jose G. & Gonzalez, Grizelle, 2020, A new Caribbean species of Hylaeanura Arle, 1966 (Collembola, Neanuridae, Pseudachorutinae), ZooKeys 961, pp. 31-39 : 31

Hylaeanura emiliae sp. nov. Figures 1-3 , 4-9 , Table 1

Type material.

Holotype. Female on slide. Paratypes: 1 female and 1 juvenile on slide. All the type material kept at corresponding author’s institution.

Type locality.

Puerto Rico, Luquillo, Luquillo Mountains, Toro Trail 1, 18°16'40"N, 65°50'53"W; 815 m a.s.l.; ex soil, Cyrilla racemiflora forest type, 18 November 2014. All specimens were extracted using Berlese-Tullgren funnels from samples collected in leaf litter and soil at the Luquillo Mountains. C. M. Ospina and M. Rivera leg.

Other material.

Female on slide, Puerto Rico, Luquillo, Luquillo Mountains, Toro Trail 2, 18°16'40.3"N, 65°51'01"W, Cyrilla racemiflora forest type, leaf litter, 795 m a.s.l., 18 November 2014, C.M.Ospina leg. One (1) juvenile on slide, Puerto Rico, Luquillo, Luquillo Mountains, Toro Trail 1, 18°16'40"N, 65°50'53"W, Cyrilla racemiflora forest type, leaf litter, 815 m a.s.l., 18 February 2015, C. M. Ospina leg.

Diagnosis.

Hylaeanura emiliae sp. nov. has an enlarged sensillas S3 and S8 on Ant IV, Abd IV without modified setae, and four setae on each dens.

Description.

Length of the holotype 1050 µm (female paratype 653 µm and juvenile paratype 550 µm). Specimens in ethanol without color, body with coarse granulation and without tubercles. Body setae short and smooth, the sensorial setae longer than ordinary setae, both acuminate (Fig. 1 ).

Head: Antenna smaller (0.47 ×) than cephalic diagonal. Ant III and IV fused dorsally. Ant IV dorsally with a trilobed apical vesicle; subapical organite absent and dorsoexternal microsensillum, 7 subcylindrical sensilla, S8 hypertrophied, S7 smaller and S3 large; 12 long setae plus i (Fig. 2 ); Ant III sense organ with two small internal straight sensilla and two subequal subcylindrical guard sensilla; ventral microsensillum present (Fig. 3 ); Ant II with 11 setae; Ant I with six setae. Eyes 2+2 in a pigmented patch. PAO absent. Head dorsal quetotaxy as in Fig. 1 , unpaired setae d0 present. Labium with a total of 11 setae per side with setae A to G, setae C and D slightly displaced apically (Fig. 4 ). Labral chaetotaxy 4, 2, 2 (Fig. 5 ). Mandible with one tooth, maxilla styliform (Fig. 6 ).

Body: Ordinary body setae smooth, distributed as in Fig. 1 . Th I with 3+3 setae. Sensory setae (ss) similar to body setae, in position p4 in all segments and distributed on Th. II-Abd V as 11/11111. Ventral chaetotaxy as in Fig. 7 . Female genital plate with 3+3 pregenital setae, 7 circumgenital and 2 eugenital (Fig. 7 ). Male genital plate not seen. Each anal ventral lobe with 14 setae.

Legs: Chaetotaxy of legs I-III as follow: Coxae with 3, 5, 7 trochanter with 5, 5, 4; femora 11, 11, 10 and tita with 16, 16, 14 setae (Fig. 8 ). Tenent hair not developed and unguiculus absent; claws without teeth.

Collophore with 3+3 setae; tenaculum with 3+3 teeth and without setae; furcula reduced, manubrium reduce with 6+6 setae in Abd III ventrally; dens with four setae, mucro absent (Fig. 9 ).

Etymology.

This species is dedicated to the daughter of the senior author, Emilia, who was born while this research was being conducted.

Distribution.

Hylaeanura emiliae sp. nov. is only known from the Luquillo Mountains in the Cyrilla racemiflora forest type, on the Toro Trail between 795-815 m a.s.l.

Fenology.

Hylaeanura emiliae sp. nov. was extracted from leaf litter and soil in both dry and rainy seasons during November 2014 and May and August 2015.

Figures

Figures 1 - 3. Hylaeanura emiliae sp. nov. 1 Dorsal chaetotaxy 2 Ant. I-IV dorsal view 3 Ant. I-IV ventral view.

Figures 4 - 9. Hylaeanura emiliae sp. nov. 4 Labium 5 Labrum 6 Mandible (Md) and Maxillae (Mx) 7 Ventral abdominal chaetotaxy 8 leg I 9 reduced furcula and tenaculum.