Tephritis admissa Hering 1961

Korneyev, Severyn V., 2013, Revision of species of the genus Tephritis Latreille 1804 (Diptera: Tephritidae) with entire apical spot, Zootaxa 3620 (1), pp. 67-88 : 68-70

Tephritis admissa Hering 1961

( Figs 1–5 )

Tephritis admissa Hering 1961: 326 ; Foote 1984: 127; Norrbom et al. 1999: 214.

Tephritis conflata Dirlbek & Dirlbek 1995: 48 ; Norrbom et al. 1999: 215, new synonym.

Type material: Holotype 3 Tephritis admissa : AFGHANISTAN: “J.Klapperich / Kalagchan, 1600m / Kataghan 28.6.53 / NO-Afghanistan” Holo/ type /3 “ Tephritis / n. sp. / Type / det. Hering 1960 [purple ink]” “ Tephritis / admissa n. sp. / Typus / det. Hering 1960” [Hering’s handwriting] (ZFMK).

Paratypes: AFGHANISTAN: 1Ƥ, “O-Afghanistan, Umgeb. v. Kabul 1740 m ”, 22.V.1952 (J. Klapperich); 13, same locality and date, (J. Klapperich); 1Ƥ [aculeus exposed], “Darufulun b. Kabul 1800 m ”, 9.VI.1953 (J. Klapperich); 13 [damaged], “Hindukusch O-Afganistan, Do-Schak, 2500 m Khinjantal”, 26.IX.1952 (J. Klapperich); 1Ƥ [wing pattern somewhat atypical, but wings damaged (unclear), aculeus exposed], “NO- Afghanistan, Schiva (Badakhschan),” (J. Klapperich) (BMNH; ZFMK).

Holotype Ƥ, Tephritis conflata : KYRGYZSTAN: “ Kirghizia, Tienshan, Kirgiss. Alatau, Alaartscha R., 1808–2000 m.”, not located; not examined (NMP?).

Additional material. KAZAKHSTAN: Aksu-Dzhabagly Nature Reserve, “archevnik” (=juniper woods), “№269/№71”, 6.VII, 12.VIII, 22.IX.1964, 23, 2Ƥ (Fisechko) (SIZK); 17.VII.1965, 13 (L. Zimina) (ZMUM); prope Merke, 42°47'N 72°59'E, h= 1100–1300 m, 23.VI.1998, 33, 3Ƥ (Kameneva & Korneyev) (SIZK). TAJIKISTAN: Fayzabad distr., “collective farm Hamza, alfalfa field”, 6.VII.1982, 13, 1Ƥ, 22.VII.1982, 33, 1Ƥ (Isametdinov) (SIZK); N slope of Anzob pass, 5.VIII.1947, 13 (Kirichenko) (ZISP); UZBEKISTAN: Chatkal Nature Reserve, Bashkyzylsai, on Cousinia tianschanica , 25–27. VI.1982, 13, 1Ƥ (Volkova) (ZMUM); KYRGYZSTAN: Talas Ridge, h=2210, 42°04'N 71°35'E, Chatkal flood plain, 76 km from Jangy-Bazar, 28.VI.1998, 13 (V. Korneyev & Kameneva); 10.6 km of Tash-Kumyr Kara-Tyt, 41°26'N 72°13'E, h= 950–1100 m, 20–21. V.1994, 13 (Korneyev); Bishkek, Tshon-Aryk, h= 1500 m, swept from Cousinia sp., 5.VI.1994, 163, 5Ƥ (Korneyev); Kokbel pass, 1500 m, 23.V.1994, 33 (V. Korneyev) (SIZK).

Diagnosis. Tephritis admissa is a medium-sized species with dark brown reticulate wing pattern and wing apex with entire brown spot. It shares these characters with T. robusta and T. tatarica , reliably differing from these species by the conspicuously shorter wing and also by the shorter oviscape and aculeus. The aculeus of T. admissa only 1.0–1.1 times as long as cell c and 5 times as long as wide, whereas in T. robusta and T. tatarica it is 1.4–1.5 times as long as cell c and 7.8–11 times as long as wide. The apex of the aculeus is acute, without conspicuous steps in T. admissa , whereas in T. tatarica it is truncated at apex and slightly incised (and in T. robusta the apex of aculeus is broken in the two dissected paratypes). T. admissa and T. robusta both differ from T. tatarica by the presence of only one pair of small hyaline spots at anterior part of crossvein r–m (surrounded by two pairs of dots fused and forming long yellowish spots in T. tatarica ).

Description. Male and female. ( Fig. 1 ).

Head. Yellow, except ocellar triangle, length: height: width ratio 1: 1.1: 1.4. Frons as wide as long. Eye 1.4 times as high as long. First flagellomere of antenna 2.1 times as long as wide. Gena 0.5 times as high as length of first flagellomere. Ocellar, medial vertical, anterior orbital and frontal setae black; posterior orbital and lateral vertical white to yellowish white. Postocular and genal setulae mixed black and white, and setulae on distal part of palpus and on pedicel black.

Thorax. Ground colour dark brown, densely grey microtrichose. Scutellum grey in the middle, yellow laterally and ventro-laterally, grey microtrichose. Setulae white and acuminate; posterior notopleural seta whitish and lanceolate; posterior anepisternal seta and anepimeral seta brown. Apical scutellar setae half as long as basal scutellar setae. Calypteres white, with whitish fringe; upper one conspicuously lobate, almost as long as wide, lower one narrow. Halter yellow.

Legs. Coxae yellow. Femora yellow with dark bands and yellowish brown and white setae. All tibiae yellow. Tarsi yellow.

Wing. ( Fig. 2 ) Cell bc hyaline, slightly brownish at base. Cell c brownish at base, with wide brown spot at middle and entirely hyaline apex. Pterostigma brown, except narrow triangular yellowish or hyaline apical area. Cell r1 apical to pterostigma brown with two subrectangular hyaline spots separated by dark interval half as wide as distal spot; apex of r1 entirely brown. Cell r2+3 hyaline at base, with dark area posterior to pterostigma; hyaline spot proximal to crossvein r–m level almost rectangular, as long as cell width and 0.5–0.7 times as wide as hyaline spot anterior to it in cell r1; two additional hyaline spots distal to r–m level large, distalmost of three spots 0.5–0.9 times as wide as middle spot; dark intervals between them 0.3–0.5 as wide as middle hyaline spot. Preapical brown area (in and posterior to cell r1 apex) either without hyaline spots or with 1–2 small round hyaline spots But in Fig. 2, 2 small plus 2 larger hyaline spots; hyaline spot at r2+3 apex of irregular shape, formed by two confluent (rarely isolated) round spots with dark incision at wing margin.

Cell br hyaline in basal half, dark in apical half, usually with 2 hyaline spots; proximal spot partly fused with basal hyaline area, and second spot isolated at middle of brown area and round. Crossvein r–m with two round small hyaline spots on either side anteriorly. Cell r4+5 at the level of dm-cu with almost rectangular hyaline spot, as wide as cell and located posterior to narrow dark interval between second and third large hyaline spots of cell r2+3; middle third of cell r4+5 brown; with 2–3 small round hyaline spots, subapical hyaline spot in cell r4+5 rectangular or 8-shaped, separating dark apex from remaining dark pattern.

Apical crossband with sinuous proximal margin, entirely brown, in 60–65% of specimens not touching posteroapical margin of wing sometimes including round hyaline spot on one wing. Cell m with 4–5 partly fused hyaline spots; two basalmost spots often fused and joined to major basal spot of cell r4+5; apicalmost hyaline spot of cell m usually widely fused wit spot(s) anterior to it in r4+5 and r2+3 to form entire subapical hyaline interval separating apical crossband from remaining dark pattern; in a few specimens, apical crossband connected by narrow brown streak along middle of cell r4+5 or also along vein M. Cell dm usually with hyaline basal 2/5 divided by pale brown bar into two subrectangular hyaline spots, sometimes entirely confluent; distal two-thirds of dm brown with 2–3 large hyaline spots, usually pear- or 8-shaped, largest posterior to crossvein r–m, and 1–2 (rarely 3–4) additional small round hyaline spots. Cell cu with 4 wide hyaline spots separated by 3 partly confluent brown bars in anterior half, and mostly hyaline in posterior part, with 2–3 pale brown spots partly confluent with dark spots in anterior half. Anal cell with one large dark spot at CuA2 and A1 fusion and often with pale spot distal to it. Anal lobe entirely hyaline.

General appearance of wing pattern reticulate, with clearly defined brown apical crossband and preapical spot of irregular shape (from apex of R2+3 to middle of cell m) and indistinct oblique discal crossband (from pterostigma through crossveins r–m and dm-cu).

Distance between crossveins r–m and dm-cu as long as r–m.

Abdomen. Abdominal tergites black; densely microtrichose, white setulose and setose; male tergite 5 and female tergites 5 and 6 with black marginal setae. Sternites black, white setulose, moderately wide, male sternite 5 posteriorly incised. Female sternite 6 with anteromedial apodeme. Abdominal pleura matt black or grey.

Terminalia. Male. Epandrium and glans similar to those in T. cameo .

Female. Oviscape as long as tergites 4-6 combined, shining black, widely white setulose ventrally and on anterolateral corners dorsally, black setulose and setose dorsomedially and posteriorly. Eversible membrane with two pairs of taeniae 0.35–0.4 times as long as membrane itself; membrane with dentate scales, moderately large ( Fig. 4 ). Aculeus 1.1–1.2 times as long as cell c, 5 times as long as wide, with evenly acute apex ( Fig. 3 ). Two moderately long, papillose spermathecae 5.5–6 times as long as wide ( Fig. 5 ).

Measurements. WL = 3.7–4.2 mm (n=5) (3), 3.9–4.3 mm (n=5) (Ƥ); CL = 0.9–1 mm. AL = 1.1 mm; BL = 4.5-4.7 mm (n=5) (3), 5.4-5.7 mm (n=5) (Ƥ).

Host plants: the flies were collected Cousinia tianschanica Kult. , which is very probably a real host plant of this species, and apparently on other species of this genus.

Discussion. Dirlbek & Dirlbek (1990) compared T. conflata with T. nigricauda and T. vespertina , and even mentioned T. admissa , but considered no differences from the latter species. The holotype of T. conflata has not been located or examined; however, the specimens collected in Tshon-Aryk, near its type locality, very closely match its description and picture of wing pattern, and are certainly conspecific with other specimens of T. admissa , including its types. I therefore synonymize these two names.

Figures

FIGURES 1 – 5. Tephritis admissa. 1. Total view Ƥ. 2. Wing. 3. Aculeus, ventral view. 4. Apex of oviscape and eversible membrane, ventral view. 5. Spermatheca.