A Review of the Palaearctic Heliocheilus Translucens Felder
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Zootaxa 3915 (2): 279–286 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3915.2.7 http://zoobank.org/urn:lsid:zoobank.org:pub:328D0F3D-9F37-4EF6-B0FF-98CE312B01C4 A review of the Palaearctic Heliocheilus translucens Felder & Rogenhofer, 1874 species-group with description of a new species from West Mongolia (Lepidoptera, Noctuidae, Heliothinae) ANTON V. VOLYNKIN1, 4, DIETER STÜNING2 & ALEXEJ YU. MATOV3 1Altai State University, South Siberian Botanical Garden, Lenina str., 61, RF-656000, Barnaul, Russia; Tigirek State Natural Reserve, office 42, Nikitina str. 111, RF-656043, Barnaul, Russia. E-mail: [email protected] 2Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, D-53113 Bonn, Germany. E-mail: [email protected] 3Zoological Institute RAS, Universitetskaja emb. 1, RF-199034, Saint-Petersburg, Russia. E-mail: [email protected], [email protected] 4Corresponding author Abstract Three Palaearctic species of the Heliocheilus translucens species-group are reviewed. One new species, H. tengri Volynkin & Matov, sp. n. is described from West Mongolia, southwestern part of Mongolian Altai Mts. The adults, male and female genitalia are illustrated. Key words: Lepidoptera, Noctuidae, Heliothinae, Heliocheilus, new species, Asia, Mongolia, Tibet, Pacific region, Hi- malaya Introduction Heliocheilus Grote, 1865 is a cosmopolitan genus belonging to the noctuid subfamily Heliothinae Boisduval, [1828]. The genus belongs to the Heliothis genus-group, the systematics of the Palaearctic members of the genus was reviewed by Fibiger et al. (2009). The H. translucens species-group includes two described Palaearctic species. In the course of studies on Lepidoptera of the Altai mountain country (Volynkin 2012; Yakovlev 2012) a third, undescribed species of the species group was identified among material from the southern part of the Mongolian Altai. The present paper comprises the review of the H. translucens species-group and description of the new species. Material and methods Specimens for this study are held in the following collections: Zoologisches Forschungsmuseum Alexander Koenig (ZFMK, Bonn, Germany), Zoological Institute of the Russian Academy of Sciences (ZISP, St.-Petersburg, Russia), Siberian Zoological Museum, Institute of Animal Systematic and Ecology of the Siberian Branch of the Russian Academy of Sciences (SZMN, Novosibirsk, Russia), Institute of Biology and Soil Science (IBSS, Vladivostok, Russia) and coll. Anton Volynkin (AVB, Barnaul, Russia). All material was examined using modern dissection standards for preparation of male and female genitalia of Lepidoptera. The depository of the types of the new species is stated in the paragraph 'Type material'. Accepted by M. Pellinen: 12 Jan. 2015; published: 3 Feb. 2015 279 Systematic part Genus Heliocheilus Grote, 1865 Heliocheilus Grote, 1865, Proceedings of the Entomological Society of Philadelphia 4: 328 (Type-species: Heliocheilus paradoxus Grote, 1865. TL: [USA], Colorado terr.). Synonymy (cited after Fibiger et al. 2009): Hebdomochondra Staudinger, 1879; Curubasa Moore, 1881; Masalia Moore, 1881; Praddata Moore, 1881; Raghuva Moore, 1881; Rhodosea Grote, 1883; Canthylidia Butler, 1886; Lecerfia Dumont, 1920. The H. translucens species-group The species-group comprises three species, one of which is described below as new. All three species are Palaearctic and distributed distinctly allopatric, to our present knowledge. External morphology of adults. Medium-sized moths with well defined noctuid pattern. Males have swollen forewing costa and elliptical and elongate transparent hyaline areas devoid of scales in distal part of dilated area between R1 and R2 and in the cell. Females have somewhat broader forewings with not swollen costa and without hyaline areas. In H. translucens and H. tengri, head, thorax and forewing colouration varies within the species from pale greyish-brown or olive-brown to orange- or reddish-brown. The third species, H. fervens, has more monotonous, shiny brownish-orange head, thorax and forewing colouration. In the male genitalia, uncus long and narrow, somewhat extended in medial part; tegumen moderately long; penicular lobes wide, weak; juxta wide, shield-like; vinculum short, weak, V-shaped. Valva elongate, narrow, slightly curved and extended apically; corona presented; sacculus weak, narrow, short. Aedeagus short, straight; lamina of carina trigonal, robust; vesica long, tubular, without cornuti, twisted, often upturned anteriorly and dorsally, distally gradually tapered, has two moderately large subbasal diverticuli and a longitudinal sclerotised band in the medial part. In the female genitalia, ovipositor relatively short, subconical. Papillae anales trigonal, with large setae. Apophyses relatively long, thin; apophyses anteriores longer than apophyses posteriores. Ostium bursae sclerotised, relatively short, wide, more or less trapezoidal, with strongly sclerotised lateral margins. Ductus bursae moderately long, extended at junction to corpus bursae, right side of its anterior part sclerotised and ribbed. Right side of posterior part of corpus bursae strongly sclerotised and ribbed. Anterior part of corpus bursae sack-like, with one-three signa. Appendix bursae relatively large, ovoid, heavily sclerotised at junction to posterior part of the corpus bursae, its posterior part conically narrowed. Heliocheilus translucens Felder & Rogenhofer, 1874 (Figs 5–8, 13, 15) Heliocheilus translucens Felder & Rogenhofer, 1874, Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1859. Zoologischer Teil 1874: pl. 108, fig. 49 (Type locality: Himalaya, Urni). Material examined. Photographs of the holotype (Fig. 1): Urni, Stolurka / CVIII f. 49 Heliocheilus translucens, Himal. u. / translucens / Genus Heliocheilus Grote, Antherm. cys. / male / Felder coll. / 570 / Type / BMNH(E) #987440 (Coll. BMNH). Other material examined: 20 males, 17 females, Batang. (Tibet). Im Tal des Yangtze (ca. 2800 m), H. Höne, 5.vi.,6.vi. (2), 8.vi., 9.vi., 10.vi., 11.vi., 15.vi., 29.vi. (2), 2.vii., 6.vii., 10.vii. (2), 13.vii., 14.vii. (4), 15.vii., 18.vii., 23.vii., 30.vii. (2), 1.viii., 9.viii., 11.viii., 12.viii. (2), 13.viii. (2), 15.viii., 19.viii., 20.viii. (2) and 21.viii. (2) 1936 (Coll. ZFMK). Slides 2278-DS Stüning (male), 2279-DS Stüning (females). Diagnosis. Wingspan 27–29 mm. Externally, specimens of H. translucens are close to H. tengri; males differ from those of H. tengri in the reduced or absent pale triangular patches in the terminal area of hindwing, the more brownish ground colour of forewing, the darker terminal area; from H. fervens they differ in the brownish head, thorax and ground colour of forewing and reduced pale triangular patches in the terminal area of hindwing; females differ from H. tengri in the somewhat narrower forewing, the somewhat paler reniform and orbicular stigmata without blackish suffusion, and the reduced pale triangular patches in the terminal area of hindwing; from H. fervens they differ in the brownish ground colour of forewing, the paler and more contrasting orbicular and 280 · Zootaxa 3915 (2) © 2015 Magnolia Press VOLYNKIN ET AL. FIGURES 1–10. Heliocheilus spp. adults. 1, H. tengri, holotype male, Mongolia (ZISP); 2, H. tengri, paratype male, Mongolia (AVB); 3, H. tengri, paratype female, Mongolia (AVB); 4, H. tengri, paratype male, Mongolia (ZISP); 5, H. translucens, holotype male, Himalaya (© BMNH) (photo by M. Honey); 6, H. translucens, male, China, Tibet (ZFMK); 7, H. translucens, female, China, Tibet (ZFMK); 8, H. translucens, female, China, Tibet (ZFMK); 9, H. fervens, male, Russian Far East (IBSS) (photo by V.S. Kononenko); 10, H. fervens, female, Russian Far East (ZISP). REVIEW OF PALAEARCTIC HELIOCHEILUS TRANSLUCENS GROUP Zootaxa 3915 (2) © 2015 Magnolia Press · 281 FIGURES 11–14. Heliocheilus spp. male genitalia. 11, H. tengri, holotype, Mongolia, slide AV1270 Volynkin; 12, H. tengri, paratype, Mongolia, slide AV0240 Volynkin; 13, H. translucens, China, Tibet, slide 2278-DS Stüning; 14, H. fervens, Russian Far East, gen. prep. Volynkin. reniform stigmata and the reduced pale triangular patches in the terminal area of hindwing. The male genitalia are close to those of H. tengri, but differ in the slightly broader and apically less pointed cucullus, the somewhat longer vesica and the larger subbasal diverticuli; from H. fervens they differ in the apically stronger pointed cucullus and somewhat larger subbasal diverticuli in the vesica. The female genitalia differ from those of H. tengri in the longer apophyses posteriores, the strongly sclerotised anterior part of ductus bursae and the posterior part of corpus bursae, the larger corpus bursae and the appendix bursae, presence of second long band-like ventral signum and a small dorsal signum; from H. fervens differ in the longer sclerotised part of ductus bursae and the broader sclerotised area in the basal part of the appendix bursae, the larger corpus bursae and appendix bursae, presence of second band-like ventral signum. Distribution. Himalaya and the Tibet region. 282 · Zootaxa 3915 (2) © 2015 Magnolia Press VOLYNKIN ET AL. FIGURES 15–19. Heliocheilus spp., female genitalia and habitat. 15, H. translucens, China, Tibet, slide 2279-DS Stüning; 16, H. tengri, paratype, Mongolia, slide AV0323 Volynkin; 17, H. fervens, Russian Far East, slide AV0185 Volynkin; 18, H. fervens, Russian Far East, gen. prep. Kononenko