Delia capdellae, Michelsen, Verner, 2012

Michelsen, Verner, 2012, Revision of the European Delia pruinosa species group (Diptera: Anthomyiidae) feeding as larvae in seed capsules of Silene L. (Caryophyllaceae), Zootaxa 3434, pp. 31-48 : 45

4. Delia capdellae sp. nov.

Figs. 35–42 .

Etymology. The specific epithet ‘capdellae’ is a Latin genitive derived from the name of the type locality, the Pyrenean hamlet of Capdella.

Description. The adults differ from other species of the Delia pruinosa species group as follows:

Male. Differs from D. pruinosa in having hind tibia with apical av-seta normally developed ( Fig. 6 , arrow). Sternite IV no wider than sternite V and sternites III–V with lateral setae shorter than in D. pruinosa ( Figs. 35, 36 ); surstyli ( Figs. 37, 38 ) more slender in caudal aspect than seen in other species except D. sileni sp. nov. ( Fig. 27 ), but in that species the surstyli are less tapering in lateral aspect ( Fig. 28 ); distiphallus ( Figs. 40, 41 ), as also in D. judicariae ( Figs. 22, 23 ), with paraphallic processes longer than postero-median extension.

Female. Oviscapt rather slender, barely longer than preabdomen when fully extended; apical setae on epiproct, hypoproct and cerci quite strong; basal two-thirds of hypoproct bare or with a few setulae only ( Fig. 42 ).

Material examined. Type material: SPAIN [ ZMUC]: Lerida: Capdella, holotype 3, paratypes 33, 3Ƥ 2.vii.1981 (V. Michelsen); Sierra de Boumort, paratype 13 7–11.vii.1981 (V. Michelsen); Gerona: Queralps, 1100–1500m, paratypes 13 11–12.vii.1984, 13 10.vi.2007, 1Ƥ 17–20.vi.2002 (V. Michelsen).

Distribution. Spain.

Figures

FIGURES 35 – 41. Delia capdellae sp. nov., male: 35. Sternites III – IV. 36. Sternite V. 37. Hypopygium, caudal. 38. Hypopygium, lateral. 39. Pre- and postgonites. 40. Phallus, lateral. 41. Distiphallus, caudal. Same scale: 0.25 mm.

FIGURES 42 – 44. Delia spp., females: 42. D. capdellae sp. nov., distal part of oviscapt, flat mounted. 43. Delia sp. indet. A, oviscapt, flat mounted. 44. Same, distal part only. Scales: 0.25 mm for 42 and 44, 1.0 mm for 43.

FIGURES 1 – 7. Delia spp.: 1. D. sileni sp. nov., female proboscis. 2. Same, male proboscis. 3. Same, female labella. 4. Same, male labella. 5. Same, male left antenna. 6. Same, detail of female left hind leg. 7. D. pruinosa, detail of female left hind leg. Scales: 0.25 mm.

FIGURES 26 – 31. Delia sileni sp. nov., male: 26. Sternites III – V. 27. Hypopygium, caudal. 28. Hypopygium, lateral. 29. Pre- and postgonites. 30. Phallus, lateral. 31. Distiphallus, caudal. Same scale: 0.25 mm.

FIGURES 17 – 23. Delia judicariae, male. 17. Sternites III and IV. 18. Sternite V. 19. Hypopygium, caudal. 20. Hypopygium, lateral. 21. Pre- and postgonites. 22. Phallus, lateral. 23. Distiphallus, caudal. Same scale: 0.25 mm.