Siphona (Aphantorhaphopsis) expleta, Tachi & Shima, 2023

Tachi, Takuji & Shima, Hiroshi, 2023, Systematic study of the subgenus Aphantorhaphopsis of the genus Siphona in East Asia and the Oriental Region (Diptera: Tachinidae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 63 (1), pp. 213-247 : 216

publication ID	https://doi.org/ 10.37520/aemnp.2023.013
publication LSID	lsid:zoobank.org:pub:3256463E-FEA1-4BA2-AB4D-4161FA1138C4
persistent identifier	https://treatment.plazi.org/id/B43287A9-FFB5-3E5F-C5D1-AF7FFABEFB16
treatment provided by	Felipe
scientific name	Siphona (Aphantorhaphopsis) expleta
status	sp. nov.

Treatment

Siphona (Aphantorhaphopsis) expleta sp. nov.

( Figs 1–4 View Figs 1–4 , 86 View Figs 86–91 )

Type material. HOLOTYPE: J ( BPBM), LAOS: / Vientiane Prov. / Ban Van Eue , 750m / forest streambed / 10–11.IV.1965 // J.L. Gressitt / Malaise trap / BISHOP MUSEUM . PARATYPES: LAOS: VIENTIANE PROVINCE: 1 J ( BPBM), Ban Van Eue, 15.i.1966 Native Collector. MALAYSIA: BORNEO: SARAWAK: 1 J ( BPBM), Nanga Pelagus nr. Kapit 180–585 m, 7–14.viii.1958, T.C. Maa. PHILIPPINES: MINDANAO: 1 J ( KUM), Mt. Apo, Agko 1350 m, 1.viii.1978 (malaise trap), A. Nakanishi & O. Yata. THAILAND: KHAOPHAPPHA PROVINCE: 1 ♀ ( BPBM), Khaochang, 200 m, Trang, 11–15.i.1964, G.A. Samuelson.

Diagnosis. This species is very similar to S. (A.) perispoliata , but can be easily distinguished from it by R 1 dorsally setulose on its entire length.

Description. Body length 3.0– 3.3 mm. Male. Head. Vertex approximately 0.3 of head width; parafacial subequal in width to width of 2nd aristomere at middle height; gena approximately 0.17 of eye height; anterior reclinate orbital seta situated posterior to middle of fronto-orbital plate, approximately twice as long as posterior seta; antenna with postpedicel subrectangular approximately twice as long as wide, and approximately 4 times as long as pedicel; 2nd aristomere approximately twice as long as wide; 3rd aristomere thickened in basal 1/3; palpus clavate; prementum 3–4 times as long as wide and approximately 0.4 times as long as eye height; labella pad-like.

Thorax. Dorsum light gray in ground color, with whitish-yellow pruinosity; pleura brownish, with yellowish pruinosity; 3 presutural and 4 postsutural dorsocentral setae; scutellum with a pair of discal setae.

Wing. Tegula blackish; basicosta light yellow. Relative lengths of costal sectors two, three, and four approximately 1: 6: 3; ultimate section of M 4 approximately 0.67 times as long as penultimate section, and approximately twice as long as crossvein m-cu; R 1 setulose dorsally on entire length, bare ventrally.

Legs blackish in ground color. Fore tibia with 5 anterodorsal, 5 posterodorsal, and 1 posterior setae; hind tibia with 5 anterodorsal, 5 posterodorsal, and 4 ventral setae.

Abdomen shining blackish in ground color; anterior 1/8 of tergite 3 and 1/4 of tergites 4–5 with whitish pruinosity. Syntergite 1+2 without distinct lateral marginal setae; tergite 3 without median marginal setae and with a pair of lateral marginal setae; sternite 5 with a pair of rounded median lobes on inner edge; inner side of apical lobes pointed basally.

Male postabdomen. Surstylus fused with epandrium at base, nearly straight in lateral view; cerci curved dorsally in middle, apical half narrowed and curved ventrally at tip in lateral view; pregonite fused basally with hypandrium, apical 1/3 strongly narrowed in lateral view; postgonite absent; distiphallus broadly sclerotized in lateral view with some spinules ventrally, apex membranous dorsally.

Female. As in male. Female postabdomen as in S. (A.) perispoliata .

Etymology. The specific name “ expleta ” is taken from the setae on the entire length of the dorsal surface on wing vein R

; an adjective.

Host. Unknown.

Distribution. Laos, Malaysia, Philippines, Thailand.