Tephritis cameo S. Korneyev

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 : 74-76

Tephritis cameo S. Korneyev new species

( Fig. 22–31 )

Type material. Holotype Ƥ: KYRGYZSTAN: Talas Ridge, Chatkal flood plain, 76 km of Jangy-Bazar, 42°04'N 71°35'E, h= 2210 m, 28.VI.1998 (Korneyev & Kameneva) (SIZK).

Paratypes: IRAN: 13, 1Ƥ, Kerman, 8.VI.1960, (Hammad) (SIZK); KYRGYZSTAN: 23, 2Ƥ: Talas Ridge, Chatkal flood plain, 76 km of Jangy-Bazar, 42°04'N 71°35'E, h= 2210 m, swept from Cousinia sp., 28.VI.1998; 13: Fergana mt. ridge Burgut pass 67 km NE of Jalal-Abad, 41°17.3'N 73°37.9'E, h= 3000 m, 10.VII.1998; 23: Chandalash ridge, Chun-Kurchak lakes 28,7 km from Jangy-Bazar, 41°48.7'N 71°35.8'E, h= 1860 m, 30.VI.1998 (Korneyev & Kameneva) (SIZK); TAJIKISTAN: 1Ƥ, Kvak, Kondara, 2.VII.1977 (Zlobin) (ZISP); AFGHANISTAN: 13, 1Ƥ, Bande-Amir, h= 2900–3100 m, 26.06– 7.VII.2009; 1Ƥ, 10 km S of Bamian, 31.VII.2011 (Skryl’nik) (SIZK).

Etymology. The name is Latin word meaning an engraving upon a gem or other stone of at least two differently coloured layers; it is used as a noun in apposition.

Diagnosis. Tephritis cameo is a medium-sized species with dark-banded wing pattern consisting of the brown apical crossband and three parallel crossbands with angulate margins. It is similar to T. angulatofasciata and T. gladius in these characters, differing by the shape of aculeus with angulate latero-apical shoulders (evenly rounded in T. angulatofasciata and T. gladius ) and also the length of aculeus (shorter than in T. angulatofasciata and longer than in T. gladius ), as given in the key.

It distantly resembles also T. volkovitshi and T. sahandi , which have banded wing pattern, but can be readily differentiated from them by the larger size and having two parallel brown bands crossing middle portion to the wing (the discal and medial dark crossbands) instead of one oblique crossband from pterostigma through crossveins r–m and dm-cu. Specimens of T. cameo with additional hyaline spots in cell r2+3 and thus less regular medial and preapical crossbands ( Fig. 24, 25 ) clearly differ from closely related T. admissa , which has similar body coloration, body size, shape of phallus glans and aculeus, by the clearly expressed dark discal crossband (in T. admissa area posterior to pterostigma is irregularly spotted).

Description. Male and female.

Head, thorax and legs as in T. admissa .

Wing ( Fig. 23–26 ). Cell c with darkened base and brown spot at middle; apex hyaline. Pterostigma brown, except narrow triangular yellowish or hyaline area along costal vein at apex. Cell r1 apical to pterostigma brown with two wide subrectangular hyaline spots separated by dark interval 0.8–1.1 times as wide as basal spot; apex of cell r1 dark colored without additional hyaline spot. Cell r2+3 hyaline at base, with brown spot posterior to pterostigma; hyaline spot proximal to r–m vein level rectangular and as wide as cell, widely connected to hyaline cells anterior and posterior to it; hyaline spot`distal to r–m wide, could be divided by tiny brown interval, preapical brown area (posterior to cell r1 apex) usually with hyaline spots; preapical hyaline spot (distal to apex of vein R2+3) usually wide and single, rarely with isolated or partially fused hyaline dot aligned to R2+3 apex; apex of r2+3 dark.

Cell br hyaline at basal half, with 2 brown areas in apical half separated by large subrectangular hyaline spot. Crossvein r–m widely brown bordered, without hyaline spots. Cell r4+5 at level of dm-cu with subrectangular hyaline spot as wide as cell and widely connected to hyaline spot in cells r2+3 and m and rectangular or 8-shaped subapical hyaline spot. Apical crossband as in T. admissa , in 10–15% of specimens narrowly connected with preapical crossband along vein M or almost connected through medial portion of cell r4+5. Cell m with two unequal hyaline spots, basal long subrectangular or 8-shaped, widely touching to large spot in r4+5 cell, preapical hyaline spot smaller, joined with hyaline spots in r2+3 and r4+5 cells into preapical hyaline crossband, and separating brown apical crossband. Cell dm with hyaline base distally and subrectangular spot proximal to vein r–m level, connected with hyaline areas in cells br and cu forming entire hyaline crossband, and equal to entirely brown areas proximal and distal to it; only distal brown area very rarely including round hyaline dot. Cell cu with 2 large brown spots, at apex and at middle, both as wide as cell and sepearated by subequal hyaline cell; basal spot at CuA2 and A1 junction large, often joined to medial brown spot along vein CuA1 and extending into anal cell. Wing dark and hyaline spots joined into 4 almost regular parallel crossbands separated by subequal hyaline intervals. Anal lobe hyaline or sometimes with 1–2 isolated brown spots.

Abdomen. Ground colour brown, grey microtrichose, as described for T. admissa .

Terminalia. Epandrium ( Fig. 27 ) shape as in other Tephritis species. Phallus without spines, glans ( Fig. 28 ) moderately short, mostly membranous. Female. Oviscape shining black, as long as tergites 2-6 combined. Eversible membrane, with taeniae 0.3–0.35 times as long as whole eversible membrane; and dentate scales (round with sharp tip), large medioventrally ( Fig. 29 ). Aculeus moderately short, 1.3–1.5 mm long, 6.5–7.1 times as long as wide, with special shoulders at the apex. ( Fig. 30 ). Two papillose spermathecae 5.3–5.8 times as long as wide ( Fig. 24 ).

Measurements. WL = 4.0– 4.3 mm (3), 4.1–4.4 mm (Ƥ); CL = 1.1 mm. AL = 1.3 mm. AL/CL = 1.27. BL = 4.9–5.1 mm (3), 5.5–5.7 mm (Ƥ).

Host plants. Possibly a Cousinia sp., as in some other species of this group.

Discussion. This species looks to be rather polymorphic in its wing pattern, from regularly banded as on Fig. 30 , to the type with hyaline spots somewhat displaced, forming an N-like hyaline mark in its anteromedial portion, with almost continuous graduation between them; study of more specimens reared from host plants is needed to clarify if variability is depending on host plant species.

Figures

FIGURES 22 – 31. Tephritis cameo new species 22. Total view, holotype Ƥ. 23 – 26. Wing (23, holotype, 24, paratype from Kyrgyzstan, Talas, 25, paratype from Afghanistan, Bande-Amir, 26, paratype from Iran, Kerman). 27. Epandrium, posterior view. 28. Glans of phallus, lateral. 29. Apex of oviscape and eversible membrane, ventral view. 30. Aculeus, ventral view. 31. Spermatheca (one of the two). Wing crossbands: D—discal; M—medial; PA—preapical; A—apical. S—shoulder of aculeus.