Carpophthoromyia virgata, Meyer, Marc De, 2006

Meyer, Marc De, 2006, Systematic revision of the fruit fly genus Carpophthoromyia Austen (Diptera, Tephritidae), Zootaxa 1235, pp. 1-48 : 32-33

C. virgata sp.n.

( Figs. 21 , 30 )

Diagnosis

Arista distinctly plumose; frons with narrow longitudinal brown band for entire length; two frontals; distance between posterior frontal and anterior orbital equal to distance between anterior and posterior orbital; scutum with transverse band, along transverse suture with obscure yellow­white fascia; postpronotum white; scutellum with three apical brown spots, only visible in ventral view; anterior margin of wing with one indentation near junction of vein C with apical part of vein R1; S­band and inverted V­band separate.

Description

Head. Antennal segments yellow­brown to dark brown. Arista distinctly plumose; longest rays longer than width of first flagellomere. Frons white to yellow, longitudinal brown band for entire length from ocellar triangle to antennal base, equal to width of ocellar triangle. Two frontals placed on oblique line, with anterior frontal about twice as far from the inner eye margin than posterior frontal; two orbitals. Distance between posterior frontal and anterior orbital is equal to distance between anterior and posterior orbital. Face white, gena darker brown.

Thorax. Scutum shining black­brown, along transverse suture with obscure yellowwhite fascia; black setulae, with transverse band of silvery setulae along transverse suture. Postpronotum white. Anepisternum with white to yellow band with lower margin reaching to lower fifth of posterior margin; with pale setulae, lower fourth with black setulae, two anepisternals. Katatergite and anatergite both white. Scutellum white, ventrally with 3 brown apical spots, not visible in dorsal view. Subscutellum black.

Legs brown, tibia and tarsal segments yellow.

Wing. Pattern similar to that of C. pseudotritea (see fig. 9). Hyaline indentation near junction of vein C with apical part of vein R1, reaching to vein R4+5. S­band and inverted Vband not fused. S­band with small subapical tooth. Crossvein DM­Cu straight. R­M ratio 1.44.

Abdomen. Shining black­brown, tergite 4 along posterior half with yellow fascia medially, narrowing laterally and not reaching lateral margins; with black setulae, tergite 4 with white setulae medially. Spermatheca ovoid in apical part, base slender. Female terminalia, oviscape shorter than abdomen; shining black­brown. Aculeus orange, flattened ( Fig. 21 ), about 5 times longer than wide; tip with lateral protuberances ( Fig. 30 ).

Body length: 5.20 (5.00­5.40)mm; wing length 5.85 (5.80­5.90)mm

Etymology

After the Latin adjective virgatus, meaning striped or in striped garments, and referring to transverse band of silvery setulae on the thorax (this being the only species within the pseudotritea complex that has such transverse band).

Material

Holotype Ψ: CONGO (D.R.), Dekese, Itunda, September 1959, F.J. François (KBIN). Paratype ɗ: CONGO (D.R.), Sankuru, April 1925, L. Ghesquière (KMMA).

Distribution

Congo (D.R.)

Comments

This species also belong to the pseudotritea complex with longitudinal band on frons. It can be differentiated by the presence of a transverse band of silvery setulae along the transverse suture, a character state present in other Carpophthoromyia but absent in all other species of the complex. The female is also distinctly separated by shape of the aculeus tip (presence of lateral protuberances) unlike any other species of this genus. The male is considered to be conspecific because of sharing the presence of only two frontals and the shape and coloration of longitudinal frontal band. However, the material at hand is currently limited and more specimens are needed to confirm this association.

Figures

FIGURES 13 – 22. Aculeus full length. — 13. Carpophthoromyia flavofasciata. — 14. C. radulata. — 15. C. tritea. — 16. C. interrupta. — 17. C. schoutedeni. — 18. C. dividua. — 19. C. tessmanni. — 20. C. pseudotritea. — 21. C. virgata. — 22. C. vittata.

FIGURES 28 – 33. Apical part of aculeus. — 28. Carpophthoromyia flavofasciata. — 29. C. radulata. — 30. C. virgata. — 31. C. interrupta. — 32. C. schoutedeni. — 33. C. tritea.