Argyrogrammana halli, Dolibaina, Diego Rodrigo, Dias, Fernando Maia Silva, Mielke, Olaf Hermann Hendrik & Casagrande, Mirna Martins, 2015

Dolibaina, Diego Rodrigo, Dias, Fernando Maia Silva, Mielke, Olaf Hermann Hendrik & Casagrande, Mirna Martins, 2015, Argyrogrammana Strand (Lepidoptera: Riodinidae) from Parque Nacional da Serra do Divisor, Acre, Brazil, with the description of four new species, Zootaxa 4028 (2), pp. 227-245 : 231-232

Argyrogrammana bonita Hall & Willmott, 1995

( Figs 7–8 , 49 )

In 2013 three males of A. bonita were collected flying two meters from the ground around 15:00h; two of them at the same place where males of A. physis phyton ( Stichel, 1911) were collected, but in a different time of the day (see below). The third specimen, an aberrant male, was collected at the same hour and place that A. aparamilla Hall & Willmott, 1995 was recorded in 2013 (see entry for A. aparamilla ). In 2014 a single male of this species was found also flying about two meters of the ground around 15:00h.

This species was described from eastern Ecuador, from a place with similar elevation found at the PNSD. Argyrogramanna bonita is considered the most common “orange and blue” Argyrogrammana species in Ecuador ( Hall & Willmott 1995). There are some minor differences between Ecuadorian specimens and the specimens caught at the PNSD: more developed orange markings on both wings upperside; the presence of orange thin lines surrounding the silvery-blue submarginal line on forewing; the reduced blue spots in forewing underside; and the presence of yellow markings surrounding some of the black spots in both wings underside. The male genitalia ( Fig. 49 ) is similar to the illustration provided by Hall & Willmott (1995, fig. 18). The subapical blue spot in forewing underside is one of the main characters used to distinguish A. bonita from A. chicomendesi Gallard, 1995 ( Hall & Willmott 1995) . The forewing underside blue spot is always present and varies from a well-marked and developed to reduced (as in Fig. 8 ) in specimens collected at the PNSD. Additionally, the oval shape of the subapical blue patch of the forewing upperside and the morphology of the valva clearly distinguish A. bonita as a distinct species, although it is probably closely related to A. chicomendesi .

Figures

FIGURES 1 – 22. Species of Argyrogrammana collected at the PNSD. 1 – 2. A. alstonii. 3 – 4. A. nurtia ludibunda. 5 – 6. A. pulchra. 7 – 8. A. bonita. 9 – 10. A. amalfreda. 11 – 12. A. physis phyton. 13 – 14. A. halli sp. nov. holotype. 15 – 16. A. celata. 17 – 20. A. gallardi sp. nov. 17 – 18. Male holotype. 19 – 20. Female (tentative determination). 21 – 22. A. aparamilla. Scale bar = 1 cm.

FIGURES 46 – 55. Male genitalia of species of Argyrogrammana collected at the PNSD. 46. A. alstonii. 47. A. nurtia ludibunda. 48. A. pulchra. 49. A. bonita. 50. A. amalfreda. 51. A. physis phyton. 52. A. halli sp. nov. paratype. 53. A. celata. 54. A. gallardi sp. nov. paratype from PNSD. 55. A. aparamilla. Left to right: dorsal view of uncus, lateral view of tegumen, saccus, uncus, gnathos, valva and aedeagus, and ventral view of valva. Scale bar = 1 mm.