Ectoedemia spinosella (de Joannis, 1908 )

Stonis, Jonas R., Remeikis, Andrius, Diškus, Arūnas & Navickaitė, Asta, 2020, Documenting new and little known leaf-mining Nepticulidae from middle and southwestern areas of the Asian continent, Zootaxa 4881 (3), pp. 401-452 : 421-422

Ectoedemia spinosella (de Joannis, 1908)

( Figs 65–72 , 174–184 )

Nepticula spinosella de Joannis, 1908: 328 .

Ectoedemia spinosella (de Joannis) , in van Nieukerken 1986: 75, 76; Johansson et al. 1990: 317, 318; A. Laštůvka & Z. Laštůvka 1997: 209; Puplesis & Diškus, 2003: 186, 187.

Ectoedemia petrosa Puplesis, 1988: 282 (syn. nov.).

Ectoedemia petrosa Puplesis, in Puplesis 1994: 199 , 200 (syn. nov.).

Material examined. 6 ♂, 11 ♀ (holotype and paratypes of Ectoedemia albiformae ): Turkmenistan, western Kopet Dag Range , 40 km E Garrygala (= Kara Kala), 800m, 30.v.–27.vi.1993, R . Puplesis & A. Diškus, genitalia slide nos AD0422 ♂ (holotype), AD0420 ♂, AD0423 ♀, AD0425 ♂ ( ZIN) ; 2 ♂ (paratypes of E. albiformae ), same locality, 28.v.1988, R . Puplesis, genitalia slide nos AD0421, AD0426 ( ZIN) ; 9 ♂, 12 ♀, same locality as holotype of E. albiformae , 13.vi–14.vii.1993, R . Puplesis and A. Diškus, genitalia slide nos AN 414♂, AN 415♂, AN 535♀ ( ZIN) ; 24 ♂, 2 ♀ (holotype and paratypes of Ectoedemia petrosa ), Tajikistan, 30 km N Dushanbe, Varzob Canyon , Kondara, 1200m, 28.vi.–21.viii.1986, R . Puplesis, genitalia slide nos AN 428♂, AN 429♂, AN 430♂, AN 431♂, AN 432♂, AN 433♂, AN 434♂, AN 435♂, AN 436♂, AN 437♂, AN 438♂, AN 439♂, AN 440♂, AN 441♂, AN 458♂ (holotype of E. petrosa ) ( ZIN) ; 21 ♂ (not type series, identified as E. petrosa by A. Navickaitė), same locality as holotype, 3–20.viii.1986, 18.viii.1989, 5.vii.–15.viii.1990, R . Puplesis ( ZIN) ; 1 ♂, same locality as holotype, 02.vii.1991, R . Puplesis and A. Diškus ( ZIN) .

Diagnosis. This species belongs to the Ectoedemia angulifasciella species group. Externally, the combination of a brown to grey cream hair pencil surrounded by brown or ochre-brown (occasionally brown and white cream together) androconial scales of the upper side of the male hindwing ( Figs 70–72 ) and a tuft of transverse bristles on the underside of male forewing ( Figs 67–69 ) distinguishes E. spinosella from the most representatives of the group, except for E. tadshikiella ; however, the latter has different male genitalia.

In the male genitalia, the combination of a very wide pseuduncus ( Figs 174, 175 , 179, 180 ), small caudal pro-cess of the gnathos ( Figs 176 , 181, 182 ), and pointed apical process of the valva ( Figs 174 , 182 ) distinguishes E. spinosella from other species of the group.

Remarks. Forewing length 1.5–2.3 mm; wingspan 3.2–5.0 mm. Forewing underside with a brown ( Fig. 67 ) to brownish cream ( Fig. 68 ) tuft of long bristles scales; occasionally the tuft can appear only as a few bristles (probably undeveloped or rubbed) ( Fig. 69 ). Hindwing upper side with a brown, pale grey-brown ( Figs 70, 71 ) or brownish cream ( Fig. 72 ) hair pencil, surrounded by brown ( Fig. 70 ) or ochre-brown ( Figs 71, 72 ) androconial scales. In the type series of the former E. albiformae , some males with white cream androconia, some with brown, and some with both (mostly white and a few brown). For a full description see Nieukerken 1986 or Johansson et al. 1990; for a description of the former E. albiformae (now synonymized with E. spinosella ), see Puplesis & Diškus 2003; for a description of the former E. petrosa (synonymized with E. spinosella ), see Puplesis 1994: 199, 200.

Bionomics. Host plants are Prunus spp., Rosaceae . The leaf mine was described and illustrated by Johansson et al. 1990: 317, 318 (fig. 753). In Asia (the western Kopet Dag Range), larvae mine in May–early July; in Europe, from late June to October ( Johansson 1990). In Asia (the western Kopet Dag Range), adults were collected in May–June; in Europe, adults fly in June–July ( Johansson 1990).

Distribution. Known from Europe (except the northern regions) and the mountain ranges of Central Asia, where it seems to be abundant ( Puplesis & Diškus 2003): the western Kopet Dag Range, Turkmenistan, at elevation of about 800 m ( Fig. 1 : Ko) and Hissor Range, Tajikistan ( Fig. 1 : Hr) (new distribution).

Remarks. We provide the first photographic documentation of the type-series specimens of S. albiformae Puplesis & Diškus (synonymized with S. spinosella ) and E. petrosa Puplesis (now synonymized with E. spinosella ), and report on new distribution of E. spinosella in Tajikistan. The holotypes and paratypes of E. albiformae and E. petrosa , earlier deposited at LEU (=VPU) will be transferred to ZIN (see Material & Methods).

Figures

FIGURES 65–72. Male adults of Ectoedemia spinosella (de Joannis) (= E. albiformae Puplesis & Diškus; E. petrosa Puplesis, syn. nov.). 65, general view, holotype of E. albiformae (ZIN); 66, same, holotype of E. petrosa (ZIN); 67, 68, forewing upper side, paratypes E. petrosa, specimens AN421 and AN432 (ZIN); 69, same, paratype E. albiformae, specimen AN421 (ZIN); 70, hindwing upper side, paratype E. albiformae, specimen AN421 (ZIN); 71, 72, same, paratypes of E. petrosa, specimens AN458 and AN440 (ZIN)

FIGURES 174–178. Genitalia of Ectoedemia spinosella (de Joannis) (= E. albiformae Puplesis & Diškus). 174, holotype of E. albiformae, male genitalia, capsule with phallus removed, slide no. AD422; 175, same, pseuduncus; 176, same, gnathos; 177, same, phallus; 178, paratype of E. albiformae, female genitalia, slide no. AD423 (ZIN)

FIGURES 179–184. Male genitalia of Ectoedemia spinosella (de Joannis) (= E. petrosa Puplesis, syn. nov.). 179, 180, holotype of E. petrosa, capsule with phallus removed, slide no.AN458; 181, 182, paratype of E. petrosa, capsule with phallus inside, slide no. AN441; 183, 184, holotype of E. petrosa, phallus, slide no. AN458 (ZIN)

FIGURES 1–6. A geographical map (courtesy of T. Patterson, USA) and new host plants of Nepticulidae. 1, localities in this study; 2, 3, Ototropis elegans (DC.) H. Ohashi & K. Ohashi, Fabaceae, a host plant of Stigmella longa sp. nov.; 4, Viburnum cotinifolium D. Don., Adoxaceae, a host plant of Acalyptris nasutus sp. nov; 5, Ototropis sp., Fabaceae, a host plant of Stigmella pyramidata sp. nov.; 6, Spiraea canescens D. Don., Rosaceae, a host plant of Ectoedemia orbiculata sp. nov.