Cyana lada Volynkin, Černý & Saldaitis, Volynkin & Černý & Saldaitis & Ivanova, 2019

Volynkin, Anton V., Černý, Karel, Saldaitis, Aidas & Ivanova, Maria S., 2019, On the correct identification of ‘ Cyana dohertyi (Elwes, 1890) ’ from northern Indochina and China, with descriptions of two new species and a new subspecies (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4658 (1), pp. 155-167: 157

publication ID

https://doi.org/10.11646/zootaxa.4658.1.7

publication LSID

lsid:zoobank.org:pub:1D952E2C-9DCD-4E8D-9F03-405B5415A0E9

persistent identifier

http://treatment.plazi.org/id/8779BBC4-76C7-497C-93BE-25BC34CDA7FF

taxon LSID

lsid:zoobank.org:act:8779BBC4-76C7-497C-93BE-25BC34CDA7FF

treatment provided by

Plazi

scientific name

Cyana lada Volynkin, Černý & Saldaitis
status

sp. nov.

Cyana lada Volynkin, Černý & Saldaitis   , sp. nov.

( Figs 1–4 View FIGURES 1–8 , 25 View FIGURES 25–28 , 37 View FIGURES 37–42 )

urn:lsid:zoobank.org:act:8779BBC4-76C7-497C-93BE-25BC34CDA7FF

Type material. Holotype ( Figs 1 View FIGURES 1–8 , 25 View FIGURES 25–28 ): ♂, “ Vietnam (N), Mts. Fan-si-pan, W-side, Chapa , 22°20’N 103°40’E, 1600–1800m, VI.1995, leg. local collectors”, slide ZSM Arct. 97/2017 ♂ Volynkin (Coll. MWM / ZSM). GoogleMaps  

Paratypes: VIETNAM: 13 ♂, same data as in the holotype (Coll. MWM / ZSM); 40 ♂, N Vietnam, 16–1800m, Mt. Fan-si-pan (West), Cha-pa (=Sapa), (22.20’ N 103.40 ’E), IX.1994 (secondary forest), leg. Mong, slide ZSM Arct. 96/2017 ♂ Volynkin (Coll. MWM / ZSM); 11 ♀, Vietnam sept., 16–1800m, Mt. Fan-si-pan (West), Cha-pa, secondary forest, 22.20’ N 103.40 ’E, IX.1994, leg. Mong, slides ZSM Arct. 100/2017 ♀, ZSM Arct. 102/2017 ♀ Volynkin (Coll. MWM / ZSM); 8 ♀, North Vietnam, Tam Dao (sec. forest), 60 km NW Hanoi, 1200m (21.34’ N 105.20 ’E), 1–5.V.1993, leg. Sinajev & Simonov, slide ZSM Arct. 103/2017 ♀ Volynkin (Coll. MWM / ZSM); 10 ♂, N Vietnam, 1400m, Mai-chau, primary forest, 40 km SE Moc-chau, 20.50’ N 104.50 ’E, 7–15.IV.1995, leg. Sinjaev & local collectors, slide ZSM Arct. 101/2017 ♂ Volynkin (Coll. MWM / ZSM); 2 ♂, 1 ♀ Vietnam sept., Tam Dao, 950 m, V.1990, leg. Kubáň (Coll. CKC); CHINA: 1 ♂, China, NW Yunnan, Nu Jiang valley, road Lushui/Gulang, H- 2000m, N28°58.15 ’’ E98°47.40 ’’, 13.V.2018, Butvila & Saldaitis leg., slide AV4783 ♂ Volynkin (Coll. ASV); 1 ♀, China, NW Yunnan, Nu Jiang valley, road Lushui/Gulang, H- 1650m, N27°01.49 ’’ E98°52.54 ’’, 14.V.2018, But- vila & Saldaitis leg., slide AV4784 ♀ Volynkin (Coll. AFM); 1 ♂, Szechuan, 15.VIII., Höne / Chion   . dohertyi Elw.   det. F. Daniel / ♂, slide AV2060 ♂ Volynkin (Coll. ZFMK).

Diagnosis. Forewing length is 15–16.5 mm in males (15 mm in the holotype) and 20–21.5 mm in females. Cyana lada   ( Figs 1–4 View FIGURES 1–8 ) is very similar externally to the sympatric C. dohertyi mertsana   ( Figs 21–24 View FIGURES 17–24 ), and differs by its more pinkish hindwing only. In many cases a correct identification is possible by the genitalia structures only. The new species also resembles C. titovi   ( Figs 5, 6 View FIGURES 1–8 ), but can be distinguished by its slightly larger size, paler male hindwing and more pinkish female hindwing. Compared to another Vietnamese member of the species-group, C. aurantifascia   ( Figs 7, 8 View FIGURES 1–8 ), the new species has smaller black spots on forewing, slightly paler male hindwing with a less developed discal spot, and more pinkish female hindwing with a less developed discal spot. In the male genita- lia, the vesica shape of C. lada   ( Fig. 25 View FIGURES 25–28 ) is clearly different from that of C. titovi   ( Figs 29, 30 View FIGURES 29–32 ), C. aurantifascia   ( Figs 31, 32 View FIGURES 29–32 ) and C. dohertyi   ( Figs 33–35 View FIGURES 33–36 ) and is most similar to that of C. gazella   (13, 14, 26, 38), C. abiens   ( Figs 9, 10 View FIGURES 9–16 , 28 View FIGURES 25–28 , 42 View FIGURES 37–42 ) and C. sikkimensis   ( Figs 11, 12 View FIGURES 9–16 , 27 View FIGURES 25–28 , 41 View FIGURES 37–42 ) as well. However, the vesica of C. lada   can be easily distinguished from those of C. gazella   , C. abiens   and C. sikkimensis   by the absence of spinules on the 1 st distal diverticulum, the much longer cluster of spinules on the subbasal diverticulum, and the configuration of other distal diverticula and the lateral diverticulum. In addition, the largest diverticulum of C. lada   is elongated and bears am elongated cluster of robust spinules, whereas in C. sikkimensis   the largest diverticulum is shorter, globular and bears a broader cluster of much smaller spinules. The female genitalia of C. lada   ( Fig. 37 View FIGURES 37–42 ) are most similar to those of C. gazella   ( Fig. 38 View FIGURES 37–42 ), but differ by the slightly longer and narrower ductus bursae, the lateral protrusion of the posterior section of corpus bursae being larger and weaker sclerotized, the larger anterior section of corpus bursae, and the larger appendix bursae. Compared to those of the sympatric C. dohertyi mertsana   ( Fig. 44 View FIGURES 43–45 ), the female genitalia of C. lada   are characterized by the presence of lateral protrusion of the posterior section of corpus bursae, and the shorter sclerotized proximal section of the appendix bursae.

Distribution. North Vietnam (Provinces of Lao Cai, Vinh Phuc and Hoa Binh) and Southwestern China (Sich- uan and Yunnan Provinces).

Etymology. Lada is a goddess in Baltic and Slavic mythology associated with beauty and fertility.

ZSM

Bavarian State Collection of Zoology

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Erebidae

Genus

Cyana