Ormosia (Parormosia) phalara Kato & Kolcsar, 2022

Kato, Daichi, Watanabe, Kozo & Kolcsar, Levente-Peter, 2022, Japanese species of Ormosia Rondani (Diptera, Limoniidae): revision of the subgenera Oreophila Lackschewitz and Parormosia Alexander, ZooKeys 1132, pp. 127-162 : 127

publication ID	https://dx.doi.org/10.3897/zookeys.1132.86022
publication LSID	lsid:zoobank.org:pub:46E68453-A2FA-4D22-A0D7-4509DFFB7C1B
persistent identifier	https://treatment.plazi.org/id/65BBAF0A-C395-4E8F-8CF5-D674396F44CA
taxon LSID	lsid:zoobank.org:act:65BBAF0A-C395-4E8F-8CF5-D674396F44CA
treatment provided by	ZooKeys by Pensoft
scientific name	Ormosia (Parormosia) phalara Kato & Kolcsar
status	sp. nov.

Treatment

Ormosia (Parormosia) phalara Kato & Kolcsar sp. nov.

Figs 5D View Figure 5 , 19 View Figure 19 , 20 View Figure 20 , 21 View Figure 21 , 22 View Figure 22

Type material examined.

Holotype. ♂, pinned. Original label: "JAPAN, Fukuoka, Fukuoka-shi, Sawara-ku, Itaya, Mt. Sefuri-san; alt. 970 m; 10 Jun. 2015, D. Kato leg." "HOLOTYPE Ormosia (Parormosia) phalara Kato & Kolcsár, sp. nov. [red label]"; BLKU.

Paratype s. Japan • 1♂; Honshu, Aomori, Hirosaki-shi, Ichinowatari-Yamashita; 40.53064°N, 140.44664°E; alt. 173 m; 25 Jul. 2014; light trap; D. Kato leg.; BLKU. • 1 ♀; Honshu, Aomori, Nishimeya-mura, Kawaratai, Ôkawa-rindô Path; 40.50062°N, 140.20405°E; alt. 300 m; 25 Jul. - 6 Aug. 2013; Malaise trap; D. Kato and T. Nakamura leg.; BLKU. • 1 ♂; Honshu, Nagano, Iida, Kamimurahodono; 35.45805°N, 138.01166°E; alt. 1415 m; 3 Aug. 2019; K. Kuroda et al. leg.; EUMJ. • 2 ♂, 1 ♀; Honshu, Nagano; Matsumoto, Azusa lake; 36.12889°N, 137.72512°E; alt. 1000 m; 21 Jul. 2020; L.-P. Kolcsár leg.; CKLP. • 1 ♀ (BOLD ID: JPCOI002-22); Honshu, Nagano, Kiso, Ohara Shinkai; 35.83739°N, 137.77346°E; alt. 1220 m, 19 Jul. 2020; L.-P. Kolcsár leg.; CKLP. • 1 ♂; Honshu, Kanagawa, Hakone; approximate coordinates: 35.23°N, 139.02°E; 25 Jul. 1957; light; S. Hisamatsu leg.; EUMJ. • 3 ♂, 1 ♀; Kyushu, Fukuoka, Fukuoka-shi, Sawara-ku, Itaya, Mt. Sefuri-san; alt. 970 m; 10 Jun. 2015; D. Kato leg.; BLKU.

Diagnosis.

General coloration dark brown (Fig. 19 View Figure 19 ). Vertex greyish. Antenna yellowish on pedicel and at least basal segments of flagellum. Mesonotum with ochreous to greyish brown parts. Wing dark brownish tinged, patterned with subhyaline spots on veins, spots free from veins absent. Cell dm closed. Halter yellow. Legs dark brown with narrow yellow areas at tips of femora and bases of tibiae in female, tibiae to tarsi mostly yellow in male. Male terminalia: tergite 9 bearing pair of long membranous lobes at caudal margin. Clasper of gonostylus divided into two arms, ventral arm ~ 3 × as long as curved stout dorsal arm, slender blade-shaped, gradually narrow toward tip. Lobe of gonostylus slender and 3/5 length of clasper, tapered distally, with long setae on ventral margin at distal 2/5. Interbase with mesal-apical lobe bearing two claws. Female terminalia with cercus slender, weakly upcurved distally. Lateral arm of genital fork rounded. Sternite 9 rounded posteriorly.

Description.

Male. Body length 3.2-3.6 mm, wing length 4.2-4.7 mm.

Head: covered with yellow and black setae. Vertex grey to dark grey, dark brownish on posterolateral part. Eyes relatively large and widely separated, ~ 4/5 as wide as narrowest point of vertex, ~ 1/2 length of head including rostrum in dorsal view. Rostrum dark brown, ~ 1/2 length of eye in lateral view. Palpus dark brown, 5-segmented, ca. as long as head, palpomere 1 globular and small, palpomeres 2-5 cylindrical, slenderer in palpomeres 2 and 5. Labellum dark brown. Antenna 3 × as long as head; 16-segmented, scape dark brown, 2 × as long as wide, narrower basally; pedicel pale to dusky yellow, roughly globular, 1/2 of length of scape; flagellomeres pale to dusky yellow, sometimes weakly dark on distal segments, oval on basal one or two segments, long cylindrical on distal segments, each flagellomere with one or two verticils, longest one at most 2 × as long as corresponding segment, gradually shorter toward distal segment, sensilla abundant especially in ventral side, at most 1/2 as long as each flagellomere.

Thorax: covered with yellow to dark brown setae. Antepronotum dark brown, pale at caudal margin; postpronotum dusky yellow. Mesonotum ochreous to greyish brown, dark brown at anterior and lateral margins, sometimes with three indistinctly dark stripes just anterior to transverse suture. Prescutal pit dark brown, roughly oval with narrower inner end. Tuberculate pit distinct, situated at anterior 1/3 to 1/2 between anterior margin of mesonotum and prescutal pit. Pleuron dark brown, variegated with grey pruinosity (Fig. 19A View Figure 19 ). Wing (Fig. 20 View Figure 20 ) tinged with dark brown, subhyaline on prearcular region, patterned with subhyaline spots restricted to vicinity of veins, without ones free from veins; spot each at MA, Rs origin, crossvein sc-r, outer end of cell dm, and tips of all longitudinal veins; spot at each tip of R1, and R4 to CuA smaller; cord seamed with subhyaline; relatively narrow, 3.3 × as long as wide; Sc ending at level of R2; crossvein sc-r distinct, situated at level of middle of Rs; R2+3+4 2/7 length of R3; R2 situated between 1/2-1 × lengths of itself distal to fork of R2+3+4; M4 0.6-0.7 × as long as M3+4; cell dm closed, 0.7-0.8 × as long as cell m1+2; wing margin between tips of CuP and A1 2.5-3 × as long as that between tips of CuP and CuA; A1 curved posteriorly near middle. Halter white to dusky yellow, slightly brownish at base, ~ 1/2 length of thorax (Fig. 19 View Figure 19 ). Legs with coxae dark brown; trochanters dusky yellow on fore pair, brown to dark brown on mid and hind pairs; femora dark brown, bases and tips narrowly yellow; tibiae yellow, tips weakly brownish; tarsi yellow, turning to brown to dark brown toward tip distal to middle of tarsomere 1 (Fig. 19A View Figure 19 ).

Abdomen: dark brown, densely covered with brown setae; yellowish setae present on genital part.

Male terminalia (Fig. 21 View Figure 21 ): Tergite 9 with pair of largely membranous, tongue-shaped lobes at caudal margin, ~ 1/3 length of remainder of tergite 9; tergite 9 slightly longer than wide including caudal lobe (Fig. 21A View Figure 21 ). Sternite 9 slightly and widely concave at middle of posterior margin (Fig. 21B View Figure 21 ). Gonocoxite oval, ca. as long as tergite 9, posteroventral margin not produced beyond base of clasper of gonostylus (Fig. 21A View Figure 21 ). Gonocoxal apodeme long, connected to each other, forming bridge, central part jointed with anteromedial part of interbase (Fig. 21D View Figure 21 ). Clasper of gonostylus dark, ~ 1.4 × longer than gonocoxite, divided into two arms; dorsal arm stout, rounded at tip, curved ventrally in apical view (Fig. 21C View Figure 21 ) and tip directed distally in dorsal view (Fig. 21A View Figure 21 ), distal part densely covered with black microscopic setae; ventral arm ~ 3 × as long as dorsal arm, slender blade-shaped, gradually narrow toward tip, acute at tip (Fig. 21C View Figure 21 ). Lobe of gonostylus slender, tapered distally and curved dorsally, 3/5 length of clasper, ventral margin with several long setae at distal 2/5 (Fig. 21C View Figure 21 ). Interbases fused basally, dorsolateral part roundly produced in lateral view; mesal-apical lobe slender claw-shaped, curved and directed posterodorsally, bearing smaller curved spine arising from ventral surface of mesal-apical lobe (Fig. 21D, E View Figure 21 ). Paramere wide, distinctly shorter than interbase (Fig. 21D, E View Figure 21 ). Aedeagus slender and cylindrical, extreme tip and subapical region slightly widened, tip extending beyond tip of interbase (Fig. 21D, E View Figure 21 ). Aedeagal sheath covering aedeagus except apical part, posterior end ~ 5 × as wide as aedeagus (Fig. 21D View Figure 21 ) at this point and produced dorsally near tip and produced ventrally at distal 3/5 (Fig. 21E View Figure 21 ). Sperm pump bacilliform in dorsal view, anterior end situated at level of 1/3 of paramere (Fig. 21D View Figure 21 ). Ejaculatory apodeme developed, dorsoventrally compressed, fin-like plate, ca. as long as diameter of sperm pump (Fig. 21E View Figure 21 ).

Female. Body length 3.6-4.8 mm, wing length 4.2-5.0 mm. Generally resembling male (Fig. 19B View Figure 19 ) except, antenna shorter, ~ 2 × length of head; each flagellomere with ca. eight verticils on each of basal segments, fewer on each of distal segments, longest one at most 1.5 × as long as corresponding segment. Tibiae to tarsi dark brown, bases of tibiae narrowly yellow (Fig. 19B View Figure 19 ).

Female terminalia (Fig. 22 View Figure 22 ): dark brown, cercus and hypogynial valve amber-colored, weakly dark on basal parts. Tergites 8 and 9 fused. Cercus weakly upcurved distally, 1.6 × longer than tergite 10; hypogynial valve relatively stout, 1.5 × as long as sternite 8, gradually narrowed toward tip, basal part 1.4 × as wide as that of cercus, tip ending at level of basal 3/5 of cercus (Fig. 22A View Figure 22 ). Genital frame with genital fork widened posteriorly, anterior part slender; lateral arm of genital fork weakly produced, rounded, situated at posterior of genital fork; sternite 9 rounded posteriorly; long and arched groove present posterior to genital opening, lateral part curved anteriorly (Fig. 22B View Figure 22 ). Three spermathecal ducts present, basal parts blackened (Fig. 22B View Figure 22 ). Spermathecae indistinct.

Etymology.

The name of this species, Ormosia phalara , is from the Greek phalaros, meaning white-spotted. The name is deemed to be a Latinized feminine adjective in nominative singular.

Distribution.

Japan (Honshu and Kyushu) (Fig. 5D View Figure 5 ).

Remarks.

This species resembles a Chinese species, Ormosia (Parormosia) angustaurata Alexander, 1936 ( Alexander 1936b), but is distinguished from it by the following characters: scape dark brown (yellow in Ormosia (Parormosia) angustaurata ); wing with subhyaline spots restricted to vicinity of veins, without smaller spots free from veins (with at least a few smaller spots free from veins in addition to ones on veins in Ormosia (Parormosia) angustaurata ); mesal-apical lobe slender with additional spine near tip (Fig. 21D, E View Figure 21 ) (stout and without additional spine in Ormosia (Parormosia) angustaurata ).