Boalda gyona Schaus, 1929

Goldstein, Paul Z., 2017, Review of the enigmatic genus Boalda with transfer of pulcherrima Köhler from Nephelistis and description of two new species (Lepidoptera: Noctuidae), Zootaxa 4276 (1), pp. 139-144 : 140

Boalda gyona Schaus, 1929

Figs 2 (cf. Schaus 1929: 49, pl. 2, Fig. 27), 10a, 10b

Material examined. 19♂, 10♀, 1 sex undetermined, including the following: holotype (♂, USNM): Santa Catharina [sic], Brazil, USNM Genitalic Slide m 51499 E. L. Todd; ♂ genitalia on slide July 1961 E.L.T. 1338; Boalda gyona Types Schs ; [ RED LABEL] USNM Type No. 33557; E. D. Jones Donor; Santa Catharina Brazil 28 III '22 E. D. Jones.

Diagnosis. Boalda gyona is readily distinguished from its congeners by the mottled appearance, dark russet coloration, larger size (forewing length 10.5 mm), and robustness of the male clasper and the expansiveness of the secondary lobe deriving from the costa.

Description ( Figs 10 a, b; cf. Todd, 1961: 261, Fig. 1 ). Male genitalia. Valves expanded apically, with secondary nearly cordate flap on ventral surface overlapping valve for more than 75 percent of the area between the base of the clasper to its apex; inner margin of valve produced posteromedially towards juxta; juxta rhomboidal; valves setose apically; pronounced thorn-like clasper arising medially; wispy tuft of setae arising from margin at base of clasper; saccus blunt; pleural sclerite S-shaped; uncus of uniform width; phallus simple, without cornuti but vesica with sclerotized basal cap-shaped plate bearing 8 to 10 denticles.

Distribution. Brazil, Uruguay.

Figures

FIGURE 1. Distribution of recorded and reported Boalda species. ● B. gyona: Santa Catarina, Brazil (type locality); Quebrada de los Cuervos, Uruguay, reported by Biezanko et al. (1957) * San Miguel de Tucumàn, Argentina, type locality of Nephelistis pulcherrima ▲ Parque Nacional Teniente Enciso, Depto. Boquerón, Paraguay, type locality of Boalda poguei. ̍ Parque Nacional Cerro Corá, Depto. Amambay, Paraguay, collection locality of Boalda sp.

FIGURE 10. Male genitalia, Boalda gyona holotype male. Brazil: Santa Catarina. USNM Slide 51499. a, valves; b, phallus. FIGURE 11. Male genitalia, Boalda pulcherrima male. Argentina: Tucumàn. USNM Slide 148043. a, valves; b, phallus.