Tephritis volkovitshi ( V. Richter 1995 ) V. Richter, 1995

Khaghaninia, Samad, Zarghani, Ebrahim, Namin, Saeed Mohamadzade & Korneyev, Valery A., 2011, A new species of Te ph rit is Latreille (Diptera: Tephritidae) with an unusual wing pattern from Iran and its taxonomic implications, Zootaxa 3047, pp. 54-62 : 60-61

Tephritis volkovitshi ( V. Richter 1995) , new combination

( Fig. 3 )

Pangasella volkovitshi Richter 1995: 225 .

Type material. Holotype 3, Tadjikistan: Khudjand Region, Ferghana [valley], Pangaz River 10 km above Pangaz village, 1800 m, slope with mountain xerophilic vegetation, 27–28.v.1989 (M. Volkovitsh leg.), “ Holotype / Pangasella / volkovitshi / V. Richter” ( ZISP). Paratype Ƥ, same geographic label as in the holotype, and “ Paratype / Pangasella / volkovitshi / V. Richter” label ( ZISP) (examined by VAK in 1994).

Redescription. 3.

Head. Mostly yellow. Frons 1.2 times as long as wide at anterior margin, as long as wide at posterior margin. Eye 1.5 times as high as long. First flagellomere of antennae 1.5 times as long as wide. Gena 0.3 times as high as eye height and 0.8 times as long as first flagellomere. Ocellar, medial vertical, anterior orbital, frontal and genal setae black; other setae, including posterior orbital and lateral vertical, white. Postocular, genal setulae whitish and setulae on distal part of palpus and on pedicel black.

Thorax: Ground colour black, only postpronotal lobes and apex of scutellum yellow, cuticle coloration hidden by entirely densely grey microtrichosity. Scutellum with several whitish setulae. Dorsocentral setae at transverse suture. Most setae black and acuminate, posterior anepisternal seta brown to black posterior notopleural seta and anepimeral seta whitish and lanceolate. Apical scutellar seta 0.4 times as long as basal. Calypters white, with whitish fringe; upper one conspicuously lobate, almost as long as wide, lower one narrow. Halter yellow.

Legs. Yellow. Femora sparsely microtrichose, mainly black setulose.

Wing. With pattern, consisting of 4 entire and 1 short posterior dark brown crossbands. Base of wing and costal cell pale infuscated on humeral crossvein and and at base of cell br. Subbasal crossband straight, reaching from apical half of costal cell through radial fork and basal crossveins to anal lobe at posterior margin; short intermediate crossband reaching from centre of dm cell to posterior wing margin just distal to CuA2+A1 apex; pterostigma (apical portion of subcostal cell) without hyaline spots; stigmal crossband oblique arcuate, crossing wing from ptrostigma through both r-m and dm-cu crossbands alightly widened to posterior margin. Apical half of cell r1 widely brown, fused with much narrower subapical band crossing wing from r1 apex to middle of posterior margin of cell m. Apical band crossing wing between middle of R2+3 to R4+5 distance to apical quarter of cell m, with proximal margin almost straight. Distance between crossveins r-m and dm-cu as long as r-m or slightly shorter.

Abdomen. Ground colour black, densely grey microtrichose. Abdominal tergites white setulose, male 5th tergite and female 6th tergite with black marginal setae. Female oviscape shining black, partly white setulose on dorsal surface, 1.1 times as long as 2 last abdominal tergites.

Genital segments. Not dissected.

Measurements. Length of wing, 3.5 mm (3), 3.6 mm (Ƥ); cell c length 0.85 mm. Aculeus not measured. Body length, 3.2 mm (3), 3.5 mm (Ƥ).

Discussion. This species possesses characters of the genus Tephritis as follows: frons with 2 frontal and 2 orbital setae (posterior seta white), proboscis capitate, posterior notopleural seta white, scutellum with 2 pairs of setae. It differs from most species by a banded type of wing pattern, similar to that in Tephritis sahandi new species, differing by the details of wing pattern and abdomen setulae and microtrichia as noted in the key.

Identification. In the only existing key to all Tephritis species by Hering (1944) as well as in any other keys to local faunas, T. volkovitshi and T. sahandi new species should be placed in the very beginning as follows. The angulatofasciata-admissa group, which includes three described ( T. angulatofasciata Portschinsky 1892 , T. admissa Hering 1961 and T. tatarica Portschinsky 1892 ) and several undescribed species, should be revised in a separate paper (S. V. Korneyev, in preparation).

1. Wing apex with one large hyaline spot between veins R4+5 and M, dark pattern here represented by 2 rays, forming apical fork joined basally to remaining dark pattern, or as pair of separated dark spots on apices of R4+5 and M.... Other Tephritis species

- Wing apex without hyaline spot between veins R4+5 and M (or at most with small hyaline dot), so dark pattern here represented either by mushroom-like apical spot joined basally to remaining dark pattern, or by separated apical crossband covering R4+5 and M apices........................................................................................ 2.

2. Wing either with 1–3 irregular dark crossbands with angulate margins separated by hyaline intervals broken into separate hyaline spots or with reticulate pattern and one apical crossband joined to remaining pattern (as „mushroom-like spot on peduncle“) or separated........................................................ angulatofasciata-admissa group

- Wing with at least three regular dark crossbands with smooth margins separated by entire hyaline intervals not broken into hyaline spots............................................................................................ 3.

3. Wing with 3–4 crossbands: pterostigma and approximated crossveins r-m and dm-cu covered with one oblique and slightly arcuate dark brown crossband. Oviscape black. Smaller flies: wing 2.8–3.5 mm. Middle East........................... 4.

- Wing with 5 brownish–yellow, more or less parallel-sided crossbands: of them, apical, subapical and stigmal crossbands isolated, straight, crossing wing from anterior to posterior margin, and two crossbands through r-m and dm-cu crossveins fused in dm cell and forming a Y-like mark ( Wang, 1998, Figs. 376-377) Oviscape reddish-yellow. Larger flies: wing 5.0– 6.1 mm. NE China......................................................................................... T. sinica

4. Wing with straight subbasal crossband crossing wing from apical half of costal cell through radial fork and crossveins bm and CuA2 to anal lobe ( Fig. 3 ). Thorax and abdomen densely grey microtrichose, abdominal tergites 3–5(6) and oviscape white setulose. Tadjikistan............................................................................ T. volkovitshi

- Wing with irregular subbasal spot broadly joined to stigmal crossband but leaving costal cell and anal lobe hyaline ( Fig. 2 ). Thorax and abdominal tergites 1–4 sparsely microtrichose, subshining, tergite 5 of male and tergites 5–6 of female mostly shining, abdominal tergites 3–5(6) and dorsal surface of oviscape black setulose. NW Iran............. T. sahandi new species

Figures

FIGURES 1 – 3. Tephritis sahandi sp. nov. (1 – 2) and T. volkovitshi (3): 1. paratype ♀, total view, dorsal. 2 – 3. Wings.