Sacada unilinealis Hampson, 1896

Singh, Navneet, Kirti, Jagbir Singh, Ranjan, Rahul, Chandra, Kailash & Speidel, Wolfgang, 2020, On the taxonomy of the genus Sacada Walker, 1862 from India, with descriptions of a new genus and two new species (Pyralinae, Pyralidae, Lepidoptera), ZooKeys 962, pp. 139-163 : 139

Sacada unilinealis Hampson, 1896 Figs 7 , 8 , 25 , 26

Sacada unilinealis Hampson 1896: 170.

Description.

Male, wingspan 32-34 mm (Figs 7 , 8 ). Adult pale rufous, speckled with fuscous; forewing pale brownish pink; basal and apical area of costa rufous; forewing with two black specks (lower one large, giving appearance of a spot) conjoined by a narrow bar; traces of evenly curved postmedial line, with area beyond it darker. Hindwing pale, with faint traces of a curved submarginal line. Cilia of both wings dark rufous. Blackish fringe of hair on fore and mid tibiae. Male genitalia (Figs 25 , 26 ) with uncus short, broad with flaps on lateral side; gnathos well developed reaching to uncus, tip hooked; valva broad, simple, without any process; tegumen simple; transtilla with a sclerotised process arising medially; juxta double, each broad at base, apically pointed and sclerotised, concave on inner edge, convex on outer edge; saccus long, broadly U-shaped; vesica membranous with fine scobination, without any cornuti.

Diagnosis.

Sacada unilinealis is an unmistakable species due to the weak markings and almost uniform colour of the fore and hindwings.

Type material examined.

Holotype (Fig. 8 ): BMNH (E) 1627040, male, Sikkim, O. Möller, 89, collection H. J. Elwes, Sacada unilinealis Hampson.

Other material examined.

India, Sikkim: 1 ♂, Dodak, 09.ix.2016, leg. R. Ranjan (Coll. NZC ZSI)

Figures

Figures 7 - 12. Adults of Sacada spp. 7 S. unilinealis Hampson (male), India 8 S. unilinealis Hampson (male), holotype, Sikkim, India 9 S. inordinata (Walker) (male), holotype, Darjeeling, India 10 S. dzonguensis, sp. nov. (male), India. 11 S. umtasorensis, sp. nov. (male), India 12 S. pallescens Hampson (male), India. Scale bars: 5 mm (7, 10, 11); 12.7 mm (12).

Figures 19 - 26. Male genitalia of Sacada spp. 19, 20 Male genitalia of S. sikkima (Moore) 21, 22 male genitalia of S. constrictalis (Ragonot) 23, 24 male genitalia of S. discinota (Moore) 25, 26 male genitalia of S. unilinealis Hampson.