Eulithinus, Hincks, 1935

Puerta-Rodríguez, Leticia, Jurado-Angulo, Pilar, Jiménez-Ruiz, Yolanda, Rosas-Ramos, Natalia & García-París, Mario, 2024, Systematics of the Sierra Nevada endemic earwig: Eulithinus analis (Forficulidae, Dermaptera), European Journal of Taxonomy 935 (1), pp. 137-165 : 140-141

Morphological study

We studied 12 specimens of Eulithinus at the collection of the Magyar Természettudományi Múzeum (Hungarian Natural History Museum, Budapest, Hungary: HNHM). Three of these specimens are the holotype of Pseudochelidura montana Steinmann, 1981 (= E. montanus ), and respective paratypes of Eulithinus hispanicus Steinmann, 1984 (= E. montanus ), and Pseudochelidura minor Steinmann, 1979 . Type specimens of E. analis and F. brevis were not studied; according to Steinman (1993) the former are holded in the Natural History Museum of London. Additional 229 dry-mounted specimens of Eulithinus were studied at the Entomology collection of the Museo Nacional de Ciencias Naturales (Madrid, Spain) ( MNCN _Ent); 71 ethanol preserved specimens were collected along the Sierra Nevada mountain range, and stored at -20°C at the MNCN collection. Dry-mounted and alcohol preserved specimens were used to identify variability in cerci size and shape under the stereo microscope. Extended depth-of-focus images of dry-mounted specimens were taken with a digital camera Nikon and a lens Nikon AF-S VR Micro-Nikkor 105 mm f/2.8G IF-ED, using the software Helicon Remote ver. 3.9.11 and Helicon Focus ver. 7.6.4.

(1) Dry mounted specimens ( Fig. 2 )

SPAIN – Andalucía: Granada • 7 specs; Sierra Nevada; Cámara leg.; MNCN _ 122579 to 122585 • 29 specs; Barranco de San Juan ; 20 Jul. 1913; C. Bolívar leg.; MNCN _ Ent 65069 , 122017 to 122040 , 122564 to 122567 • 1 spec.; Barranco Goterón, R.Vacares ; 26 Jun. 1950; J. Mateu leg.; MNCN _ 122586 • 3 specs; Cerro Pelado ; 23 Jun. 1950; Mateu-Suárez leg.; MNCN _ Ent 122568 , 122570 , 122588 • 5 specs; Cerro Pelado ; 5 Jul. 1951; MNCN _ Ent 122590 , 122591 , 122593 , 122594 , 122622 • 1 spec.; Cerro Pelado ; 24 Nov. 1953; J. Suárez leg.; MNCN _ Ent 122592 • 1 spec.; Laguna de las Yeguas ; 14 Nov. 1936; C. Bolívar leg.; MNCN _ Ent 65068 • 143 specs; Laguna de las Yeguas; 14 Sep. 1935; C. Bolívar leg.; MNCN _ Ent 69459 , 69478 , 69505 , 69512 , 69572 , 69593 , 69605 , 121917 to 122016 , 122042 to 122071 , 122558 to 122563 • 4 specs; Laguna de las Yeguas ; 3000 m a.s.l.; Aug. 1965; Fidel Fdez. Rubio leg.; MNCN _ Ent 122617 , 122619 to 122621 • 1 ♂; Laguna de las Yeguas ; 2800 m a.s.l.; 14 Sep.; R. Ebner leg.; (gen. prep. No. 620 det. Dr Steinmann, Eulithinus analis Ramb. det. Dr H. Steinmann, Dt 2381); HNHM • 24 specs; Lagunillos de la Virgen ; 2950 m a.s.l.; Aug. 1964; Fidel Fdez. Rubio leg.; MNCN _ Ent 122595 to 122616 , 122618 • 1 spec.; Lanjarón ; Pérez Arcas leg.; MNCN _ Ent 122575 • 1 ♂; P. [Pico] de Veleta ; 14 Sep. 1935; gen. prep. No. 621 det. Dr Steinmann, Dt 2379; HNHM • 2 ♀♀; P. [Pico] de Veleta ; 14 Sep. 1935; Eulithinus analis Ramb. det. Dr Steinmann, Dt 2380; HNHM • 1 spec.; Puerto del Lobo ; Mateu-Cobos leg.; MNCN _ Ent 122587 • 1 spec.; Puerto del Lobo ; 22 Jun. 1950; Mateu-Suárez leg.; MNCM _ Ent 122041 • 3 specs; Puerto de la Ragua ; 2000 m a.s.l.; 17 Jul. 1903; Escalera leg.; MNCN _ Ent 122576 to 122578 • 5 ♂♂; Réf. [Refugio] Universitario ; 2600 m; Jul. 1979; G. Osella leg.; (Dt 2378); HNHM. – Almería • 5 specs; Sierra de Filabres , Bacares ; Martínez leg.; MNCN _ Ent 122569 , 122571 to 122574 .

(2) Ethanol preserved specimens ( Fig. 2 )

SPAIN – Andalucía: Granada • 12 ♂♂; Sierra Nevada , Laguna de Río Seco ; 37°03′07.16″ N, 3°20′45.57″ W; 3029 m a.s.l.; 17 Aug. 2011; P. Pavón Gozalo, M. García París and J.M. Barea Azcón leg.; field number MNCN tij11935; MNCN _ Ent 344345 , 344346 , 344352 to 344360 • 2 ♂♂; Borreguiles del Río San Juan ; 37°05′05.06″ N, 3°22’30.81″ W; 2546 m a.s.l.; 16 Aug. 2011; P. Pavón Gozalo and M. García París leg.; MNCN _ Ent 344349 , 344350 • 1 ♂; same collection data as for preceding; 22 Aug. 2011; MNCN _ Ent 344351 • 1 ♂, 1 ♀; Monachil, Pradollano ; 37°05′30.66″ N, 3°23′47.51″ W; 2214 m a.s.l.; 19 Aug. 2011; M. García París and G. García Martín leg.; field number MNCN tij11503; MNCN _ Ent344344 • 1 ♀, 2 nymphs; Arroyo Albergue de San Francisco ; 37°06′13.51″ N, 3°22′54.61″ W; 2194 m a.s.l.; 17 Aug. 2011; P. Pavón Gozalo, M. García París and J.M. Barea Azcón leg.; MNCN _ Ent 344347 , 344348 , 344361 .

Figures

Fig. 2. Geographic distribution of Eulithinus analis (Rambur, 1838). The green shading on the map represents the area of the Sierra Nevada National Park usually considered as the general area of the species. The purple dots correspond to the records of the species based on the specimens studied from the Entomology collection of the Museo Nacional de Ciencias Naturales, including dry mounted and ethanol preserved material.