Ancylis christiandiana Huemer and Wiesmair

Gilligan, Todd, Huemer, Peter & Wiesmair, Benjamin, 2016, Different continents, same species? Resolving the taxonomy of some Holarctic Ancylis Hübner (Lepidoptera: Tortricidae), Zootaxa 4178 (3), pp. 347-370 : 364-365

Ancylis christiandiana Huemer and Wiesmair , sp.n.

Figs. 32–34, 68, 82

Type material. Holotype. Ƌ: “ Austria – Kärnten Griffen, Griffener See 480m 11.6.2004 – LF leg. H. Deutsch ” “BC TLMF Lep 03394” ( TLMF).

Paratypes (20). Austria: 1 Ƌ , same data as holotype, but barcode sample ID BC TLMF Lep 0 3395, gen. slide TOR 464 Ƌ P. Huemer (coll. Helmut Deutsch, Bannberg, Austria) ; 1 Ƌ, ditto, but barcode sample ID BC TLMF Lep 0 3396, gen. slide 07/098 Ƌ H. Deutsch (coll. Helmut Deutsch, Bannberg, Austria) ; 1 Ƌ, ditto, but Griffner See, Bruchwald , 490 m, AT-BMN 31 14,721609 E / 46,697111 N, 27.5.2016, leg. Dr . C. Wieser (LMK); 1 Ƌ, ditto, but 3.6.2016 (LMK); 1 Ƌ, Kärnten, Finkenstein, S Höfling, Finkensteiner Moor W, 536 m, 13°52´45´´E, 46°34´06´´N , 27.5.2016, leg. Huemer (TLMF); 2 Ƌ, ditto, but 28.5.2016 ( TLMF); 1 Ƌ, Carinthia, Lavant Au, Aufweitung Aich , Insel, 385 m, AT-BMN 31 14,856502 E / 46,728070 N , 31.5.2016, leg. Dr. C. Wieser (LMK); 1 Ƌ, Carinthia, St. Paul /L. bei Aich , 395 m; AT-BMN 31 14,86042 E / 46,72273 N , 21.5.2014, leg. D. Wieser (LMK); 1 ♀, Carinthia, Flughafen, Witternitz , Rückhalteb. 3, 440 m , 26.5.2008, AT-BMN 31 14,354825E / 46,642159N, leg. Dr. C. Wieser, Kärntner Landesmuseum, gen. slide TOR 478 ♀ P. Huemer (LMK); 1 Ƌ, ditto, but barcode sample ID BC TLMF Lep 0 6853, gen. slide TOR 462 Ƌ P. Huemer (LMK) ; 1 ♀, ditto, but 23.6.2008 (LMK) ; 1 ♀, ditto, but Rückhalteb. 1, AT-BMN 31 14,355872 E / 46,642029 N, 26.5.2008 (LMK); 2 Ƌ , ditto, but Rückhalteb. 4, AT-BMN 31 14,353762 E / 46,642417 N, 26.5.2008 (LMK); 1 Ƌ , ditto, but 24.6.2008 (LMK); 1 Ƌ, Carinthia, Großedlinger Teich , 420m , 14.6.2005, AT-BMN 31 14,843800 E / 46,795742 N, leg. Dr. C. Wieser, Kärntner Landesmuseum, barcode sample ID BC TLMF Lep 0 6854 (LMK); 2 Ƌ, Carinthia, Eberndorf, Sablatnigmoor , Lichtfalle 1, 550m, 5– 8.6.1989, leg. Dr. C. Wieser, Kärntner Landesmuseum , gen. slide T390 Ƌ C. Wieser (LMK); Germany: 1 Ƌ, Schwaben , Dillingen a.d.D., Wertingen , Wertinger Ried , 10.6.2016, leg. Heindel, barcode sample ID BC ZSM Lep ID 71187 (coll. Richard Heindel, Günzburg, Germany).

Diagnosis. Ancylis christiandiana is similar to A. diminutana and A. geminana , but all three species can be distinguished by a combination of wing pattern, coloration, and size. The costal half of the forewing is dark grayish brown in A. christiandiana versus lighter reddish brown in A. diminutana . The longitudinal line is more angulate in A. christiandiana and reaches the termen in a diagonal shallowly curved line near the apex, whereas the longitudinal line in A. geminana is distinctly curved, and the coloration of the forewing in A. christiandiana is rather monotonous and less contrasting than in A. geminana . Both A. christiandiana and A. geminana are larger than A. diminutana . The tubular shape of the antrum with a straight posterior edge of the lamella antevaginalis is possibly diagnostic in A. christiandiana ; in A. geminana the posterior part of the lamella antevaginalis is weakly convex whereas in A. diminutana it is concave and the antrum is funnel shaped.

Description. Head, labial palpi and thorax light grayish brown. Labial palpi and head with scattered black scales.

Forewing. FWL Ƌ 8.1 – 9.1 mm (n=6), ♀ 7.6 mm (n=1). Forewing is falcate. The costal half of the wing is a mix of grayish brown, dark brown, and black. The costa is light grayish brown with darker markings towards the apex. The dorsal half of the wing is light brownish gray to near white, with several black dots present on the dorsum. The longitudinal line is continuous from base to apex and is bordered in whitish gray dorsally. The line starts at A1+2, curves up to the cubitus, angles back down to CuA2 and then runs in a diagonal line straight to the apex. A row of black scales runs along the termen. The cilia at the apex are black with a white postapical strigula; other cilia are pale on the basal half and dark on the apical half. Hindwing is gray. Male genitalia. As described for the group. Female genitalia. As described for the group with the following modifications: apophyses posteriores and apophyses anteriores approximately the same length; posterior edge of the lamella antevaginalis straight; and antrum tubular.

Molecular data. BIN URI: BOLD:AAV7672. The intraspecific divergence of the barcode region is 0% (n=5). The minimum distance to the nearest neighbor A. geminana is 3.85%.

Distribution. Ancylis christiandiana is known from a few localities in southern Austria and Germany, but it is probably more widespread and expected to occur at additional sites.

Biology. The few adults known to date have been collected in late May and June at light. The larval host is unknown but this species likely feeds on willow ( Salix spp.) like other members of the group. Ancylis christiandiana seems to prefer hygrophilous woodland.

Etymology. The species name christiandiana is an artificial compound form of the forenames of two colleagues who contributed to this study, Christian Wieser and Andi [Andreas] Segerer.