Chvalaea masneri Ale-Rocha, 2006

Barros, Luana Machado, Soares, Matheus Mickael Mota, Freitas-Silva, Rafael Augusto Pinheiro De & Ale-Rocha, Rosaly, 2019, Neotropical Chvalaea Papp & Földvári (Diptera: Hybotidae: Ocydromiinae): new records, an illustrated key to species and description of three new species, Zootaxa 4571 (3), pp. 347-362 : 355-356

Chvalaea masneri Ale-Rocha, 2006

( Figs 14 , 15, 17 , 42 , 50 , 53 )

Chvalaea masneri Ale-Rocha, 2006: 26 , figs 27–32, 40. Type-locality: Chulumani, Apa-Apa, La Paz, Bolivia.

Diagnosis. As in Ale-Rocha (2006), plus frons narrow (at mid-length narrower than width of anterior ocellus) ( Fig. 14 ). Veins M 1 and M 4 reaching the wing margin ( Fig. 50 ). Hind femur slightly clavate. Fore and mid tarsomeres 3– 4 and hind tarsomeres 3–5 ventrally with short, blunt, black spine-like setae.

Type material examined. PARATYPES: Bolivia. La Paz, Chulumani, Apa-Apa , 16°22′S, 67°30′W, 1– 4.v.1997, 1800 m, L. Masner s.s. B-09 (7 ♂, INPA).

Remarks. In the original description, a photo of the wing of C. masneri was presented ( Ale-Rocha 2006, fig. 40), which highlighted the sinuosity near the apex of vein R 1 as diagnostic of the species. After re-examining the paratypes and a photo of the holotype, we noted that vein R 1 is not so sinuous near the apex and does not run closely to R 2+3 ( Fig. 50 ) as previously described, indicating that the wing in Ale-Rocha (2006) does not belong to this species. Therefore, we provide here a new wing photograph of a male paratype.

Geographical distribution. This species is known from Bolivia (La Paz) and Guatemala (Sacatepequez) ( Fig.

53).

Figures

FIGURE 53. Chvalaea Papp & Földvári. Geographical distribution of the Neotropical species.

FIGURES 13–14. Chvalaea Papp & Földvári. 13–14. Frons. 13. Chvalaea ecuadoriensis sp. nov.; 14. Chvalaea masneri Ale- Rocha; Scale bar = 0.1 mm.

FIGURES 15–18. Chvalaea Papp & Földvári. 15–16. Scutum. 15. Chvalaea masneri Ale-Rocha, 2006; 16. Chvalaea sinclairi sp. nov., paler region anteriorly close to postpronotal lobes highlighted. 17–18. Hind tibia. 17. Chvalaea masneri Ale-Rocha, 2006; 18. Chvalaea amazonica Ale-Rocha, 2006. Scale bars = 0.5 mm.

FIGURES 37–42. Chvalaea Papp & Földvári. Habitus. 37. Chvalaea amazonica Ale-Rocha, 2006, holotype ♀; 38. Chvalaea annularis sp. nov., holotype ♂; 39. Chvalaea boliviana Ale-Rocha, 2006, paratype ♀; 40. Chvalaea catarinensis Ale-Rocha, 2006, paratype ♂; 41. Chvalaea ecuadoriensis sp. nov., paratype ♂. 42. Chvalaea masneri Ale-Rocha, 2006, paratype ♀. Scale bars = 1 mm.

FIGURES 45–52. Chvalaea Papp & Földvári. Wings. 45. Chvalaea amazonica Ale-Rocha, 2006, holotype ♀; 46. Chvalaea annularis sp. nov., holotype ♂; 47. Chvalaea boliviana Ale-Rocha, 2006, paratype ♀; 48. Chvalaea catarinensis Ale-Rocha, 2006, paratype ♂; 49. Chvalaea ecuadoriensis sp. nov., paratype ♂; 50. Chvalaea masneri Ale-Rocha, 2006, paratype ♀; 51. Chvalaea pulchra Ale-Rocha, 2006, holotype ♀; 52. Chvalaea sinclairi sp. nov., holotype ♂. Abbreviations: bm = basal medial cell; br = basal radial cell; cua = anterior cubital cell; CuA+CuP = anterior branch of cubital vein + posterior branch of cubital vein; dm = discal medial cell; M 1 = first branch of media; M 4 = fourth branch of media; R 1 = anterior branch of radius; R 2+3 = second branch of radius; R 4+5 = third branch of radius. Scale bars = 1 mm.