Carpophthoromyia radulata, Meyer, Marc De, 2006

Meyer, Marc De, 2006, Systematic revision of the fruit fly genus Carpophthoromyia Austen (Diptera, Tephritidae), Zootaxa 1235, pp. 1-48 : 24-25

C. radulata sp.n.

( Figs. 14 , 29 )

Diagnosis

Arista distinctly plumose; frons with longitudinal brown band for entire length; three frontals; distance between posterior frontal and anterior orbital shorter than distance between anterior and posterior orbital; three frontals; scutum without transverse band; 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 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 distance between anterior orbitals. Three frontals placed on oblique line, with anterior frontal at least 3 times as far from the inner eye margin than posterior frontal; two orbitals. Distance between posterior frontal and anterior orbital is shorter than distance between anterior and posterior orbital. Face white, gena darker brown.

Thorax. Scutum shining black­brown, along transverse suture yellow­brown; black setulae, without transverse bands of silvery setulae. Postpronotum white. Anepisternum with white to yellow band with lower margin reaching to lower fourth 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 well beyond vein R4+5, to halfway between R4+5 and M. S­band and inverted V­band not fused. S­band with small subapical tooth. Crossvein DM­Cu straight. R­M ratio 1.15.

Abdomen. Shining black­brown; with black setulae. Spermatheca ovoid in apical part, base slender. Female terminalia, oviscape shorter than abdomen; shining black­brown. Aculeus orange, flattened ( Fig. 14 ), about 5 times longer than wide; tip truncate with small protuberances ( Fig. 29 ).

Male unknown

Body length: 5.20mm; wing length 5.20mm

Etymology

After the Latin radula, meaning a scraper and referring to the shape of the aculeus tip.

Distribution

Cameroon

Comments

External morphology corresponds to that of pseudotritea except for the very different aculeus with spatulate tip. The main non­sexual difference is the wider longitudinal band on frons but this seems to be variable in pseudotritea s.s..

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.