Coletinia redetecta Molero, Bach & Gaju, 2013

Molero, Rafael, Bach, Carmen, Sendra, Alberto, Montagud, Sergio, Barranco, Pablo & Gaju, Miguel, 2013, <strong> Revision of the genus <em> Coletinia </ em> (Zygentoma: Nicoletiidae) in the Iberian Peninsula, with descriptions of nine new species </ strong>, Zootaxa 3615 (1), pp. 1-60 : 38-40

Coletinia redetecta Molero, Bach & Gaju new species

Figs. 2A , 7 , 102–116

= Coletinia sp. II in Wygodzinsky (1980).

Studied material. Castellón , Sant Mateu , Cova dels Encenalls, 21 March 2003, male holotype and 1 female paratype, S. Montagud et al. coll., captured directly, deposited in MVHN , Cod. : 231108 BM32 ; Castellón , Cabanes, Avenc d’En Serenge, 2 February 2003, 1 male paratype, S. Montagud et al. coll., deposited in MVHN , Cod. : 231108 BM33 ; Castellón , Coves de Vinromá, Cova del Mas d’Abat, 17 June 2005, 1 female paratype, F. Fadrique leg., deposited in UCO , Ref. Z2171 .

Description. Body length 11–11.5 mm in males, up to 15.5 mm in females. Body uniformly pale yellowish to pale brown, or yellowish with a brownish abdomen.

Macrosetae with a high degree of spiralization; on the head, pedicellus and coxae the number of turns reaching 8–10, these highly twisted macrosetae also inserted on the maxillae and femora ( Fig. 2A ).

Head with scattered, thin and short setae and a few bifid macrosetae ( Fig. 102 ).

Antennae of the male symmetrical; pedicellar apophysis with its structure resembling C. capolongoi , bearing an apical glandular cone (in males, internal glands behind the setae clearly visible by O.M.) and a subapical platelike process with rounded upper margin connecting to the base of the glandular cone through a region of smooth and more sclerotized tegument with an indentation in the upper margin and defining a subapical cavity ( Fig. 103 ). In both observed males, one bifid macroseta inserted near this cavity and an insertion of another macroseta; pedicellus also bearing three long, highly spiralized macrosetae. Tegument of the scapus, pedicellus and basal trunk of the apophysis squamose; basal trunk bearing few thin and relatively long setae. The apical part of the apophysis reaching its limit between the fourth and fifth joints of the flagellum.

Distal article of maxillary palp 5.7 times longer than wide and approximately 1.2 longer than the penultimate article ( Fig. 104 ).

Nota as is usual in the genus. Tibiae relatively long; their L/W ratios given in Table 2. Most tibial spines equal to or shorter than diameter of the tibiae, subdistal ventral spines slightly longer than width of the tibiae. All tibiae with 2 or 3 dorsal, 1 or 2 lateral and usually more than 6 ventral spines; metatibia sometimes with only one dorsal spine. Ventral spines of 2 subdistal, 2 mediobasal and 2 or more basal spimes; additional thin and short spines present mediobasally or basally on the ventral side of tibiae ( Figs. 105–107 ).

Urotergites I-IX typical. Tenth urotergite of male with a concave rear edge between the posterolateral lobes ( Fig. 108 ); margin with obtuse angle in the holotype, more rounded in the other male observed ( Fig. 110 ). Urotergite of holotype appearing somewhat folded in its midline. Posterolateral lobes with 4–8 sensory pegs each; in holotype only 4+4 pegs visible ( Fig. 109 ), but number possibly as posterior segments not well preserved; the other male bearing 7+8 pegs ( Fig. 110 ). In the female, tenth urotergite has with concave posterior border, and its disc extensively covered with thin setae ( Fig. 111 ).

Urosternites I-VII without remarkable characters, with 1+1 discal, 1+1 submedian and 1+1 sublateral bifid macrosetae. Eighth urosternite of the male protruding, convex, nearly flattened and straight near the midline ( Fig. 112 ).

Parameres as long as ninth stylets, somewhat collapsed in the holotype, about 5–6 times longer than wide ( Fig. 113 ).

Subgenital plate of the female with strongly convex hind border and slightly longer than wide at its base ( Fig. 114 ). Ovipositor long with 19–20 divisions, surpassing the level of the ninthth stylets by 1.5–2 times their length ( Fig. 115 ).

Male cerci with 0+2 sensory pegs in holotype ( Fig. 116 ) and 2+3 pegs in the specimen from Cabanes; the paracercus apparently lacking sensory pegs.

Etymology. The specific name of this species means “discovered again” and refers to the history of this species commented on in the discussion section.

Remarks. The historic background to the description of C. redetecta n. sp. is interesting. In the same work in which Wygodzinsky (1980) described the genus Coletinia , he also cited Coletinia sp. II, a female, from the Cova dels Ensenalls, San Mateu. The species was believed to be new, but was not described as the male was not known. Nevertheless, some taxonomically relevant characteristics of the female, such as the shape and setal pattern of the tenth urotergite, and the ovipositor, were included and drawn.

A sample from the same cave was collected in recent years, with the male and the female collected together to allow their description as a new species. The female characteristics agree with those described by Wygodzinsky (1980), particularly the tenth urotergite; the ovipositor of the specimen studied by him appears to be somewhat shorter than that of the specimens studied here, but it is likely that his female was a subadult insect, and that the gonapophyses were not completely developed. Moreover, two additional samples from other caves in the same geographic region were found to be conspecific and provided details about the variability of this species.

The most important difference between C. redetecta n. sp. and the remaining species of the group “ capolongoi ” is the higher number of tibial spines. Moreover, this species shows a high degree of macrosetal spiralization when mounted in Tendeiro medium.

Figures

FIGURE 2. OM photographs of coxal spiralized macroseta showing the different degrees of twisting of the tegument. A. Coletinia redetecta n. sp. B. C. capolongoi. Scales: 50 µm.

FIGURES 7, 8. Terminology of body parts. 7. Urosternite VI of Coletinia redetecta, showing the position of its macrosetae. Sl: sublateral; Sm: submedian; D: discal. Scale: 0.1 mm. 8. Pedicellar apophysis of C. mendesi, showing its main structures: B, basal trunk; A: apical cone; S: glandular seta; L: lamellar (plate-like) projection. Scale: 0.1 mm.

FIGURES 102–111. Coletinia redetecta n. sp. 102. Chaetotaxy of the frons. 103. Pedicellar apophysis of the male. 104. Maxillary palp. 105. Protibia. 106. Mesotibia. 107. Metatibia. 108. Urotergite X of the holotype male. 109. Detail of the sensory pegs of urotergite X of the holotype. 110. Hind border and posterolateral lobes of urotergite X in male from Avenc d’en Serenge. 111. Urotergite X of paratype female. Scales: 0.1 mm.

FIGURES 112–116. Coletinia redetecta n. sp. 112. Urosternite VIII of the male. 113. Stylets IX and paramera. 114. Subgenital plate of the female. 115. Ovipositor and stylet IX. 116. Basal portion of the cercus of the male. Scales: 0.1 mm.