Trypeta scutellata, Walker, 1853

Meyer, Marc De, 2006, Systematic revision of the fruit fly genus Carpophthoromyia Austen (Diptera, Tephritidae), Zootaxa 1235, pp. 1-48 : 26-28

C. scutellata ( Walker, 1853)

Diagnosis

Arista short to medium pilose; frons completely yellow, three frontals; scutum with two broad transverse bands; postpronotum white; scutellum completely white; fore femur at least partly yellow; anterior margin of wing with two hyaline indentations, in cell c and sc; S­band and inverted V­band separate.

Description

Head. Antennal segments yellow to orange. Arista short to medium long pilose, longest rays about half width of first flagellomere. Frons usually completely yellow. Three frontals placed on slight oblique line, with anterior frontal at most 1.5 times as far from the inner eye margin than posterior frontal; two orbitals. Face white, gena dark yellow.

Thorax. Scutum shining black­brown; black setulae, except for two broad transverse bands with silvery setulae; one anteriorly of transverse suture, continuing posteriorly along lateral margins to base of postsutural supraalars or slightly beyond, second one near dorsocentrals; third smaller region of silvery setulae between postpronotal lobes; sometimes bands partly fused. Postpronotum white. Anepisternum with white band with lower margin reaching lower fourth of posterior margin; with pale setulae, lower fourth with black setulae, two anepisternals. Anatergite and katatergite white. Scutellum completely white. Subscutellum black­brown.

Legs completely yellow in male; female with femora brownish, except fore femur yellow anteriorly.

Wing. Pattern similar to that of C. procera (see fig. 4). Hyaline indentation in cell c, with black patches and streaks. Hyaline indentation near junction of vein C with apical part of vein R1, reaching R4+5. S­band and inverted V­band completely separate. S­band with small trace of subapical tooth, or tooth completely absent. Crossvein DM­Cu straight or slightly sinuous. R­M ratio 1.33­1.67.

Abdomen. Shining brown, posterior half of tergites 2­4 more yellow­orange, sometimes tergites 1­2 largely or completely orange; with black setulae, tergites 2­4 with silvery setulae and microtrichosity along yellow­orange band; tergite 5 more reddish brown. Spermatheca ovoid in apical part, base slender. Female terminalia, oviscape at least as long as abdominal tergites; shining brown, with black setulae. Aculeus orange, cylindrical, about 25 times longer than wide; aculeus tip darker orange and slightly downcurved.

Body length: 7.29 (6.40­8.48)mm; wing length 7.08 (6.40­7.80)mm

Material examined

Type material: Lectotype (designated by inference of holotype by D.E. Hardy, 1966: 663) ɗ: SENEGAL? “ Senegal?”, ex coll. Saunders (BMNH).

Other material: CAMEROON: 3ɗɗ 2ΨΨ, Yaoundé, 24.VII.1936, ex Guttiferae (smaller fruit), J.M. McGough (USNM). CONGO (D.R.): 1Ψ, Epulu, 2.X. 1957, 950m, Ross & Leech (CAS). IVORY COAST: 1ɗ, Bandama, 18.V.1971 “piège lum.” “21­224” (MNHN); 1ɗ 1Ψ, Korhogo, 25.IV.2000, Nu lure trap, H. N’Klo (KMMA). SIERRA LEONE: 1Ψ, ‘Hinterland of Sierra Leone’, 1898, Lt. Boyd Horsbrugh (BMNH). Unknown Country: 1Ψ, no locality given, “Marigot salé” 3.III.1971 (MNHN). Unknown country: 1ɗ, no locality given, 21.III.1944, “A­1192” (USNM).

Distribution

Senegal?; Cameroon, Congo (D.R.), Ivory Coast, Sierra Leone Comments

The holotype is in poor condition, with large part of the thorax damaged and features obscured. The body is covered with remains of mould and one wing is missing. However the legs are completely yellow with femora same color as rest of the legs; the type is much smaller than other material seen and the indentation in cell Sc is not as deep as in other specimens. The above description is based upon the holotype and supplemented with characters observed in the non­type material. Some of the specimens studied do not have a country of origin indicated on the specimen labels.