Phytoliriomyza argentifasciata Kato, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1133.94530 |
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publication LSID |
lsid:zoobank.org:pub:D7A37FE0-DC2A-4ECC-A6A1-0E873C7C7A5A |
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persistent identifier |
https://treatment.plazi.org/id/2C7BEF3A-1E11-471A-9002-8DF42A7F0D91 |
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taxon LSID |
lsid:zoobank.org:act:2C7BEF3A-1E11-471A-9002-8DF42A7F0D91 |
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treatment provided by |
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scientific name |
Phytoliriomyza argentifasciata Kato |
| status |
sp. nov. |
13. Phytoliriomyza argentifasciata Kato sp. nov.
Figs 24 View Figure 24 , 25 View Figure 25
Material examined.
Holotype: Japan: 1♂ (MK-AG-a347), Ukawa, Tango, Kyotango, Kyoto Pref. (35.7102°N, 135.1623°E, 100 m asl), 5-III-2021 (as larva), emerged on 9-IV-2021 NSMT-I-Dip 31959. Paratypes: Japan: 1♀ (MK-AG-a462), same data as holotype, NSMT-I-Dip 31960; 2♀ (MK-AG-436, 441), Kibune, Sakyo-ku, Kyoto Pref., 24-VI-2011 (as larva), emerged on 12-VII-2011, NSMT-I-Dip 31961, 31961; 1♂ (MK-AG-478), Ryutosen, Higashi-sonogi, Nagasaki Pref., 30-IV-2017 (as larva), emerged on 31-V-2017, NSMT-I-Dip 31963; 1♀ (MK-AG-473), Kibune, Sakyo-ku, Kyoto Pref., 20-VI-2016 (as larva), emerged on 5-VII-2016, NSMT-I-Dip 31964; 1♂1♀ (MK-AG-456, 452), Han-yama, Yaku Is., Kumage, Kagoshima Pref., 29-III-2017 (as larva), emerged on 19-IV-2017, NSMT-I-Dip 31965, 31966; 1♀ (MK-AG-a204), Tachijami, Kume Is. Okinawa Pref., 20-III-2020 (as larva), emerged on 2-V-2020, NSMT-I-Dip 31967.
Other material.
Japan: 5♂3♀, Takasuka, Joso, Ibaragi Pref., 2-XI-2021 (as larva), emerged on 11-15-XII-2021; 1♀, Kuchisakamoto, Aoi-ku, Shizuoka Pref., 20-IX-1998 (as larva), emerged on 18-23-IX-1998; 1♀, Mt. Gozaisho, Komono, Mie Pref., 1-V-2001 (as larva), emerged on 25-V-2001; 3♂6♀, Ukawa, Tango, Kyotango, Kyoto Pref., 5-III-2021 (as larva), emerged on 2-8-IV-2021; 16♂10♀, Kibune, Sakyo-ku, Kyoto Pref., 24-VI-2011 (as larva), emerged on 12-VII-2011; 16♂25♀, Wadagawa-kyo, Kumanogawa, Shingu, Wakayama Pref., 7-VI-2021 (as larva), emerged on 17-VII-8-VIII-2021; 1♂1♀, Kibune, Sakyo-ku, Kyoto Pref., 23-IV-2021 (as larva), emerged on 2-6-V-2021; 6♂8♀, Ryugakyo, Yamashiro, Miyoshi, Tokushima Pref., 1-II-2014 (as larva), emerged on 24-IV-3-V-2014; 1♂1♀, Tazukawa-keikoku, Katsuura, Tokushima Pref., 30-III-2021 (as larva), emerged on 26-29-IV-2021; 3♂4♀, Sui, Anan, Tokushima Pref., 30-III-2021 (as larva), emerged on 14-17-IV-2021; 1♂2♀, Kurase-keikoku, Tanbara, Saijo, Ehime Pref., 2-II-2014 (as larva), emerged on 20-26-IV-2014; 1♀, Yasui-keikoku, Niyodogawa, Agawa, Kochi Pref., 27-II-2011 (as larva), emerged on 17-IV-2011; 1♂, Kinsakubaru, Amami, Kagoshima Pref., 4-VII-1999 (as larva), emerged on 25-VII-1999; 5♂11♀, Tachijami, Kume Is. Okinawa Pref., 20-III-2020 (as larva), emerged on 15-IV-8-V-2020.
Diagnosis.
A medium-sized species (wing length 1.5-1.9 mm) having subshiny yellow scutum with a medial and two pairs of lateral dark stripes; inner stripes with silvery reflection. Adults with yellow 1st flagellomere, yellow maxillary palpus, yellow halteres, and yellow legs. Male epandrium inner-laterally with a hand-like comb comprising four or five basally fused, long, tubercle-like setae. Larva mines the thallus of Reboulia hemisphaerica orientalis .
Description.
Adult male (Fig. 24A-E View Figure 24 ).
Head: Head entirely yellow, with ocellar tubercle brown, and back of head dark brown (Fig. 24C View Figure 24 ). Antenna porrect, yellow. Arista subbasal, brown, pubescent. Frons with brownish reflective pruinosity. Face, gena, parafacial, and postgena yellow. Proboscis normal, yellow; palpus yellow, cylindrical (Fig. 24C View Figure 24 ). Chaetotaxy: Front orbitals three pairs; one ori directed inward; two ors directed upward (Fig. 24B View Figure 24 ). Orbital setulae minute and erect, in a single row.
Thorax: Thorax subshiny yellow; in some geographic populations, background color grayish yellow (Fig. 24D View Figure 24 ). Scutum with medial black stripe on anterior 2/3, one pair of gray suborbicular presutural spots confluent with the medial stripe, a pair of narrow black supra-alar stripes and a pair of wider gray intra-alar stripes, which adjoin the pair of lateral presutural gray suborbicular spots; the gray spots and stripes look silver in sunlight. Scutellum and subscutellum yellow (Fig. 24D View Figure 24 ). Mediotergite brown, anatergite yellow, katatergite brown (Fig. 24E View Figure 24 ). Pleuron largely yellow (the background color sometimes grayish in some localities); propleuron with small brown patch on mid-anterior corner; anepisternum with two small spots on anterior and posterior corners; anepimeron with a narrow brown patch on anterior corner; katepisternum and meron with brown patches on venter (Fig. 24B View Figure 24 ). Haltere yellow, while dorsal surface grayish yellow. Calypter margin and hairs gray. Leg segments yellow; tibia and tarsus darker (Fig. 24A View Figure 24 ). Chaetotaxy: Scutum with 1+3 dorsocentrals, shortened anteriorly (Fig. 24D View Figure 24 ). Acrostichal setulae five pairs in two rows. Wing: Wing length 2.0-2.2 mm, costa reaching M1 (Fig. 24A View Figure 24 ). Length of ultimate section of vein M4 divided by penultimate section 1.8-1.9.
Abdomen: Abdomen dorsally subshiny yellow (Fig. 24E View Figure 24 ). Genitalia: (Fig. 24G-K View Figure 24 ) Epandrium dark brown, rounded apically; inner-posterior surface with a long apically bifid tubercle-like seta; inner-lateral margin with a long tubercle-like seta, the tip of which is flattened and fan-shaped; inner-anterior surface with a finger-like comb comprising five basally fused tubercle-like setae (Fig. 24H View Figure 24 ). Surstylus rounded, directed inwards, setose apically, with a single long, apically bifid, tubercle-like seta on posterior margin (Fig. 24H View Figure 24 ). Cercus narrow, setose. Subepandrial sclerite with a pair of flat, pale, ventral lobes, each bearing a seta basally (Fig. 24J View Figure 24 ). Hypandrium sclerotized along outer margin (Fig. 24G View Figure 24 ). Postgonite bare and goose barnacle-shaped (Fig. 24J View Figure 24 ). Phallophorus with deep incision below, articulated with phallapodeme, fused to epiphallus (Fig. 24K View Figure 24 ). Basiphallus with a basally bilobed sclerite; each lobe expanded laterally. Hypophallus broad and membranous with lightly sclerotized margins, medially with a pair of fused linear sclerites (Fig. 24K View Figure 24 ). Mesophallus dark, cylindrical, widest subbasally, 1.2 × longer than distiphallus. Distiphallus comprising one pair of stout tubules basally parallel to each other; basal half composed of lateral dark lanceolate sclerite and weaker medial region; distal half cylindrical, dorsally and laterally pigmented, with truncated, shortly flared unpigmented apex (Fig. 24K View Figure 24 ). Ejaculatory apodeme pale and fan-shaped with broad stalk; base wide to one side; sperm pump clear (Fig. 24I View Figure 24 ).
Female (Fig. 24F View Figure 24 , 25C View Figure 25 ). Similar to male, but larger, frons wider. Wing length 2.3 mm. Postabdomen: (Fig. 25A, B View Figure 25 ) Oviscape dark brown, setigerous (Fig. 25A View Figure 25 ). Tergite 10 trifurcate, laterally uniting narrow pleural sclerites (Fig. 25B View Figure 25 ). Each cercus with two stout, apical, trichoid sensilla, 1/3 length of cercus (Fig. 25B View Figure 25 ). Spermathecae semi-orbicular, with truncate proximal ends (Fig. 25A View Figure 25 ).
Variation.
Background color of scutum and scutellum varies from yellow to grayish yellow, and the blackening is obvious in the Yaku Islands.
Etymology.
The specific name (argentus = silver, fascia = stripe) refers to silver stripes on the scutum, which are obvious in sunlight.
Japanese name.
Ginsuji-jingasagoke-hamoguribae.
Host plant.
Reboulia hemisphaerica orientalis ( Aytoniaceae ).
Mine.
Larvae construct digitate mines in the thallus, and pupate in the mine (Fig. 25E-I View Figure 25 ).
Biological notes.
The habitats of this species are rocky cliffs in warm temperate evergreen forests (Fig. 25D View Figure 25 ), and on the ground or on stone walls of temples, shrines and farms in rural ecosystems. Our rearing records suggest that this species is bivoltine, with adults emerging in spring and summer.
Distribution.
Japan: Honshu, Shikoku, Yaku Island, Amami-Oshima Island, Kume Island (Fig. 26 View Figure 26 )
Remarks.
This species resembles P. dorsata , P. calcicola , P. longifurcae , P. nigroflava , and P. brunofasciata in having two pair of dark lateral bands on the scutum; it is distinguished from them by the silverly reflecting inner stripes (inner stripes black or gray in the other species), and by the extended, distorted tubercle-like seta on the subdistal margin of the male epandrium.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.