Biodiversity Data Journal : Taxonomy & Inventories
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Taxonomy & Inventories
A new species of the genus Proutia Tutt (Lepidoptera, Psychidae) from Korea, based on morphology and DNA barcodes
expand article infoDong-June Lee, Jae-Seok Lee, Jongwon Kim, Hyeon Lee, Bong-Kyu Byun§, Seung Jin Roh
‡ Honam National Institute of Biological Research, Mokpo, Republic of Korea
§ Hannam University, Daejeon, Republic of Korea
Open Access

Abstract

Background

The genus Proutia Tutt, 1899 (Lepidoptera, Psychidae) comprises 14 species found throughout the world. In East Asia, three species, Proutia chinensis Hättenschwiler & Chao, 1990, P. maculatella Saigusa & Sugimoto, 2014 and P. nigra Saigusa & Sugimoto, 2014, are known from Korea, Japan and China.

New information

Proutia cornucervae Roh & Lee, sp. nov. is newly recognised from Korea. In addition, Bruandella niphonica (Hori) is transferred to genus Proutia. Male and genitalia of the species are described and DNA barcodes are provided.

Keywords

Proutia cornucervae, Bruandella niphonica, new combination, DNA barcode, bagworms, Korea

Introduction

The family Psychidae consists of 241 genera with 1,350 described species (van Nieukerken et al. 2011). Phylogenetically, Psychidae have been placed in the superfamily Tineoidea (Regier et al. 2015). The larvae of the family Psychidae usually make cases in unique shapes for each species (Sugimoto 2009a, Sugimoto 2009b).

The genus Proutia Tutt, 1899 was based on the type species Psyche betulina Zeller, 1839. Recently, genera Anaproutia Lewin, 1949 and Bruandella Saigusa & Sugimoto, 2014 were synonymised to genus Proutia (Arnscheid and Weidlich 2017). In total, 14 species of the genus Proutia are known worldwide, with all species being distributed throughout the Palaearctic Regions (Sobczyk 2011, Saigusa and Sugimoto 2014, Arnscheid and Weidlich 2017). In East Asia, three species, Proutia chinensis Hättenschwiler & Chao 1990, P. maculatella Saigusa & Sugimoto, 2014 and P. nigra Saigusa & Sugimoto 2014, are known from Korea, Japan and China (Sobczyk 2011, Saigusa and Sugimoto 2014, Roh et al. 2016, Roh and Byun 2017). The genus Proutia is known, based on the following adult characters: labial palp reduced to one segment and antenna bipectinate; nine veins arising from the discal cell, intercalary cell present in the forewing; genitalia of the male usually with short anellus and saccus, vesica without cornuti. The larvae build their cases by putting together debris of algae, bark and wood (Arnscheid and Weidlich 2017).

The purpose of this paper is to describe a new species, Proutia cornucervae sp. nov., including the collecting localities, illustrations of male adult and genitalia and DNA barcode. In addition, Bruandella niphonica (Hori, 1926) is transferred to genus Proutia. Furthermore, DNA barcodes for precise identification of five species of Korean Proutia (four) and Psyche (one) are also provided.

Materials and methods

The materials examined in this study are kept in the Entomological Collection, Honam National Institute of Biological Resources (ECHNIBR), Mokpo, Korea. The male genitalia were dissected and examined after mounting on glass slides in 80% glycerol solution. The wing venations were examined in 70% alcohol solution. Photographs of adults were taken using a MP-E 65 mm f/2.8 1-5x Macro Photo, attached to 5D Mark IV digital camera (Canon, Tokyo, Japan). Photographs of the male genitalia was taken using a DFC 95 mm digital camera (Leica, Wetzlar, Germany) attached to a Leica M205A stereomicroscope (Leica, Wetzlar, Germany). Terminology and morphological characters of the adult, wing venation and genitalia follow Saigusa and Sugimoto (2014) and Arnscheid and Weidlich (2017).

Genomic DNA from seven specimens of Proutia maculatella, four specimens of P. nigra, nine specimens of P. niphonica, one specimen P. cornucervae sp. nov. and one specimen of Psyche yeongwolensis was extracted from the legs of dried specimens of adults in 100% alcohol using a Genomic Cell/Tissue Spin Mini Kit (Qiagen, Inc, Hilden, Germany), according to the manufacturer’s protocol. Specimens were sequenced and the DNA barcode, cytochrome oxidase subunit I gene (COI), was amplified using the primers LCO1490 and HCO2198 (Folmer et al. 1994). Polymerase chain reaction (PCR) conditions for amplification followed the manufacturer’s protocol (Platinum Taq, Invitrogen, Carlsbad City, CA, USA). The amplicons were purified using the QIAquick® PCR purification kit (QIAGEN, Inc, Hilden, Germany) and directly sequenced at Macrogen (Seoul, Korea). Contigs were assembled in Geneious prime (Kearse et al. 2012). Successful sequences were uploaded to GenBank (Table 1).

Table 1.

Species with DNA barcodes (COI) and GenBank and BOLD systems accession numbers used in this study.

Species

Country

Accession No.

Species

Country

Accession No.

Proutia maculatella

Korea

OR122630 *

P. comitella

Slovenia

KX045500

Korea

OR122631 *

Italy

KU497314

Korea

OR122632 *

Italy

KU497313

Korea

OR122633 *

Proutia niphonica

Korea

MT154326 *

Korea

OR122634 *

Korea

OR134246 *

Korea

OR134240 *

Korea

OR134247 *

Korea

OR134241 *

Korea

OR134248 *

Japan

LC094176

Korea

OR134249 *

P. cornucervae sp. nov.

Korea

MT154331 *

Korea

OR134250 *

P. nigra

Korea

OR134242 *

Korea

OR134251 *

Korea

OR134243 *

Korea

OR134252 *

Korea

OR134244 *

Korea

OR134253 *

Korea

OR134245 *

Japan

LC094173

P. norvegica

Norway

BOLD:AAD0603

Japan

LC094187

Norway

BOLD:AAD0603

Proutia sp.

Japan

LC094174

P. raiblensis

Austria

BOLD:AAQ1159

Japan

LC094178

Slovenia

KX044945

Psyche casta

Germany

HQ563536

Slovenia

KX047374

Austria

KM572052

P. betulina

Slovenia

KX046545

Canada

GU096047

Austria

KP253124

Finland

HM873163

Germany

HQ563535

P. yeongwolensis

Korea

MT154332 *

Slovenia

KX045856

P. crassiorella

Austria

KM572313

P. rotunda

Finland

JF853593

Italy

HM914070

Denmark

KX043914

Finland

HM875551

P. comitella

Italy

KX045446

Denmark

KX043231

* In this study

The barcodes were compared to 50 DNA barcodes of the genera Proutia and Psyche downloaded from NCBI (https://www.ncbi.nlm.nih.gov/) and BOLD systems (https://v4.boldsystems.org/) (Table 1). A Neighbour-Joining analysis (NJ) was performed with MEGA X (Kumar et al. 2018) using the Kimura-2-Parameter (K2P) model (Kimura 1980) for nucleotide substitutions. Bootstrap support values for each node were also evaluated via MEGA X with 1000 replicates. Parsimony (PA) with bootstrap analyses were conducted in TNT 1.5 (Goloboff and Catalano 2016).

Taxon treatments

Proutia cornucervae Roh & Lee sp. nov.

Material   Download as CSV 
Holotype:
  1. scientificName:
    Proutia cornucervae Roh & Lee, sp. nov.
    ; phylum:
    Arthropoda
    ; class:
    Insecta
    ; order:
    Lepidoptera
    ; family:
    Psychidae
    ; country:
    South Korea
    ; stateProvince:
    Daejeon-si
    ; county:
    Yuseong-gu
    ; decimalLatitude:
    36.3333
    ; decimalLongitude:
    17.3333
    ; year:
    2015
    ; month:
    4
    ; day:
    12
    ; individualID: ; individualCount:
    1
    ; recordNumber: ; otherCatalogNumbers:
    GBMND76673-21
    ; institutionCode:
    Mined from GenBank, NCBI
    ; occurrenceID:
    DF1C4BA7-55A1-598A-96D7-AA9131C8DC18

Description

Adult (Fig. 1A-C, E and F). Male. Head: Vertex of head densely clothed with brown hairs; ocelli absent; antennae less than 1/3 length of forewing, flagellum bipectinated. Thorax: notum covered with dark-brown scales. Wingspan 14 mm. Forewing dark-brown scale covered, generally without markings on upperside; 6.8 mm in length excluding fringe with termen distinctly formed; median cell 0.69 times as long as forewing; accessory cell absent; intercalary cell present; Sc and R1 terminating at 4/5 costa; R2 and R3 stalked at anterior part of the cell; R4 and R5 originating at corner of anterior part of cell to reach apex; M2 stalked at corner of intercalary cell; CuA1 and CuA2 parallel to tornus. Hindwing covered with greyish scales; 4.9 mm excluding fringe, with termen distinctly formed and gently curved; median cell 0.59 times as long as hindwing; Rs and M1 separated. Legs covered with dark brown scales. Abdomen: Male genitalia with tegumen wide, rounded; uncus formed as rectangular; saccus straight, slightly long and slender; apical part of ampulla gently arched with club shape, setae present, length of ampulla 0.45 times as long as length of valva dorsal margin; phallus curved, cornuti wide and long. In dorso-ventral aspect, uncus concave; gnathos absent; valva slightly narrow, apical part of valva presented with short setae; apical margin of harpe formed into three weakly-rounded laciniation; juxta absent; anellus well developed, pointed, 0.3 times as long as length of valva; phallus long. Larval case (Fig. 1D). 9 mm in length. Larvae attach their tiny and slender branches on to the larval case of cylindrical shape.

Figure 1.  

Male of P. cornucervae sp. nov., Holotype: A adult; B antenna; C wing venation; D larval case; E genitalia, dorso-ventral aspect; F ditto, lateral aspect.

Diagnosis

This species is similar to P. nigra Saigusa and Sugimoto, but can be distinguished by the much darker wings being blackish-brown and pectinations of the antennae elongate and about about same length from basal flagellomeres to flagellomere 9. Whereas in P. nigra, the wings are slightly lighter, being brownish-black and pectinations of antennae abruptly becoming longer to 7th flagellomere.

Etymology

The specific name is derived from the Latin cornu and cerva (= antler), referring to the antennae shape.

Distribution

Korea (new species).

Proutia niphonica (Hori, 1926), comb. nov.

Nomenclature

Eumea niphonica Hori, 1926: 28 (Eumea is misspelling of Fumea). Type locality: Japan.

Psyche casta (Pallas, 1767): Sauter and Hättenschwiler (1991): 79; Leraut (1997): 87; Sobczyk (2011): 257.

Bruandia niphonica (Hori, 1926): Sugimoto (2009a): 12; Saigusa and Sugimoto (2013): 145.

Bruandella niphonica (Hori, 1926): Saigusa and Sugimoto (2014): 143; Roh and Byun (2017): 224; Saigusa and Sugimoto (2022): 147.

Notes

The placement of niphonica Hori, 1926 has been a debatable issue. The species was described by Hori, based on specimens collected from Honshu and Kiyshu in Japan and assigned to Eumea, an incorrect subsequent spelling of Fumea Haworth, 1812. Sauter and Hättenschwiler (1991) treated it as a junior subjective synonym of Psyche casta (Pallas, 1767) and this treatment has been subsequently followed by Leraut (1997), Sobczyk (2011) and Arnscheid and Weidlich (2017). However, Sugimoto (2009a) treated it as valid species in Bruandia Tutt, 1900 and this was followed by Saigusa and Sugimoto (2013). Bruandia Tutt is a homonym of Bruandia Desmarest, 1857. Sauter and Hättenschwiler (1999) proposed Anaproutia Lewin, 1949 as a replacement name of Bruandia Tutt and then Anaproutia was treated as a synonym of Proutia by Bengtsson and Palmqvist (2008). Saigusa and Sugimoto (2014) erected Bruandella as a replacement name of Bruandia Tutt and then Roh and Byun (2017) assigned niphonica in Bruandella. Saigusa and Sugimoto (2013) discussed differences between niphonica Hori collected from the type locality and Psyche casta (Pallas) in detail, pointing out that the intercalary cell in the male forewing is present in niphonica Hori, whereas absent in Psyche casta (Pallas). Recently, Saigusa and Sugimoto (2022) desginated the lectotype specimen (Fumea niphonica Hori, 1926) and concluded that it was reasonable for this species to be a new combination into the genus Bruandella. Therefore, niphonica Hori is a valid species. We accepted this point of view. Furthermore, the molecular analyses (Table 2, Figs. 2 and 3) supported specimens from Korea and Japan representing a valid species in Proutia, treated as Proutia niphonica (Hori, 1926), comb. nov.

A checklist of the genus Proutia in Korea

Proutia maculatella Saigusa and Sugimoto, 2014

Nomenclature: 

Proutia maculatella Saigusa and Sugimoto, 2014: 144; Roh et al. (2016): 673. Type locality: Japan.

Distribution: 

Korea, Japan.

Notes: 

This species was first reported by Roh et al. (2016) in Korea.

Proutia nigra Saigusa and Sugimoto, 2014

Nomenclature: 

Proutia nigra Saigusa and Sugimoto, 2014: 149; Roh and Byun (2017): 226. Type locality: Japan.

Distribution: 

Korea, Japan.

Notes: 

This species was first reported by Roh and Byun (2017) in Korea.

Proutia niphonica (Hori, 1926), comb. nov.

Nomenclature: 

Eumea niphonica Hori, 1926: 28 (Eumea is misspelling of Fumea). Type locality: Japan.

Psyche casta (Pallas, 1767): Sauter and Hättenschwiler (1991): 79; Leraut (1997): 87; Sobczyk (2011): 257.

Bruandia niphonica (Hori, 1926): Sugimoto (2009a): 12; Saigusa and Sugimoto (2013): 145.

Bruandella niphonica (Hori, 1926): Saigusa and Sugimoto (2014): 143; Roh and Byun (2017): 224; Saigusa and Sugimoto (2022): 147.

Distribution: 

Korea, Japan.

Notes: 

This species was first reported by Roh and Byun (2017) in Korea.

Proutia cornucervae Roh & Lee, sp. nov.

Distribution: 

Korea (new species).

Analysis

A total of 22 new sequences was generated from four species of Proutia and one species of Psyche (567–658 bp of partial COI). All new sequences were deposited in GenBank (accession numbers: MT154331–154332, OR122630–122634 and OR134240–134253 in Table 1). The DNA barcodes (COI) were compared to those of 50 specimens in 13 species, 25 sequences downloaded from NCBI and three sequences downloaded from BOLD systems.

Genetic divergence of COI, using uncorrected p-distances amongst the Proutia and Psyche species, ranged from 5.8% to 16.0% (the result between P. betulina and P. rotunda was excluded, as it was considered to be due to misidentification), while intraspecific divergence ranged from 0% to 3.6% (Table 2). The molecular analyses (p-distance, NJ and PA analyses) revealed that Proutia sp. and P. maculatella were closely related to P. cornucervae sp. nov. (Table 2, Figs 2, 3). The maximum difference amongst populations within Proutia sp. was 1.3% and within P. maculatella 1.0% (Table 2). Genetic divergence between P. cornucervae sp. nov. and its molecularly related species Proutia sp. and P. maculatella are 6.2% and 6.5%, respectively and that strongly supported the separation of P. cornucervae sp. nov. and its congeners (Table 2).

Table 2.

Inter-and intraspecific genetic differences in the two genera Proutia and Psyche species for COI (658 bp), calculated using p-distances.

1

2

3

4

5

6

7

8

9

10

11

12

13

1

0-

0.02

2

0.093-

0.103

0

3

0.124-

0.134

0.119-

0.121

0.003-

0.009

4

0.110-

0.120

0.113-

0.116

0.058-

0.060

0

5

0.105-

0.117

0.109-

0.119

0.102-

0.109

0.099-

0.105

0.002-

0.006

6

0.105-

0.115

0.109-

0.114

0.103-

0.105

0.099-

0.100

0-

0.005

0

7

0.112-

0.128

0.117-

0.121

0.099-

0.107

0.096-

0.099

0.093-

0.102

0.093-

0.097

0.002-

0.010

8

0.113-

0.123

0.121-

0.126

0.106-

0.108

0.092-

0.099

0.091-

0.096

0.091-

0.094

0.059-

0.070

0.013

9

0.116-

0.123

0.122-

0.124

0.102-

0.103

0.106-

0.108

0.103-

0.108

0.103

0.062-

0.068

0.065-

0.072

0

10

0.119-

0.131

0.120-

0.127

0.108-

0.118

0.102-

0.108

0.114-

0.129

0.114-

0.125

0.067-

0.079

0.082-

0.093

0.091-

0.102

0-

0.019

11

0.128-

0.143

0.138-

0.141

0.146-

0.147

0.137-

0.141

0.123-

0.128

0.123

0.125-

0.134

0.134-

0.140

0.131-

0.132

0.135-

0.144

0-

0.018

12

0.137-

0.149

0.135-

0.141

0.129-

0.141

0.132-

0.138

0.125-

0.141

0.125-

0.137

0.131-

0.141

0.134-

0.147

0.137-

0.138

0.144-

0.155

0.075-

0.085

0-

0.036

13

0.147-

0.152

0.148-

0.150

0.150-

0.153

0.139-

0.140

0.132-

0.137

0.132

0.138-

0.144

0.146-

0.149

0.160

0.146-

0.157

0.120

0.128-

0.132

0

1, Proutia niphonica; 2, Proutia comitella; 3, P. raiblensis; 4, P. norvegica; 5, P. betulina; 6, P. rotunda; 7, P. maculatella; 8, Proutia sp.; 9, P. cornucervae sp. nov.; 10, P. nigra; 11, Psyche casta; 12, P. crassiorella; 13, P. yeongwolensis.

Figure 2.  

Neighbour-Joining tree, based on partial COI gene sequences with bootstrap values. Scale bar indicates the expected number of substitutions per site.

Figure 3.  

Strict consensus tree of equally parsimonious cladograms, based on partial COI gene sequences with bootstrap values (bootstrap values over 80% are indicated).

Acknowledgements

This work was supported by a grant from the Honam National Institute of Biological Resources (HNIBR), funded by the Ministry of Environment (MOE) of the Repulblic Korea (HNIBR202101101, 202301101).

References

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