Bradina translinealis Hampson, 1896

Guo, Jia-Ming & Du, Xi-Cui, 2023, Five new species of Bradina Lederer (Lepidoptera, Crambidae) from China, with remarks on the morphology of the genus, ZooKeys 1158, pp. 49-67 : 49

Bradina translinealis Hampson, 1896

Figs 2G , 5A-F

Bradina translinealis Hampson, 1896: 228. Type locality: N. W. Himalayas. Type depository: NHMUK.

Material examined.

Holotype, ♂. Moore Coll. 94-106, genitalia slide no. 8734. (NHMUK).

Additional material.

China, Yunnan Prov., 5 ♂♂, 2 ♀♀, Baihualing Village, Baoshan City , alt. 1520 m, 11-13 August 2007, Dan-Dan Zhang leg., genitalia slide no.: GJM21165 ♂, GJM21166 ♂, GJM21167 ♀, GJM21182 ♀.

Redescription.

Adult (Fig. 2G ). Wingspan 25.0-30.0 mm, forewing length 12.0-13.0 mm. Frons brown, with lateral sides yellowish white above. Vertex yellowish white. Antenna brownish yellow, with brown ring dorsally; ventral cilia c. quarter length of flagellomere diameter of male. Labial palpus with basal two thirds white, black-brown distally. Maxillary palpus black-brown, yellowish white at base. Patagium and tegula pale brown. Thorax pale brown dorsally, white ventrally. Forewing yellowish brown, dark brown along basal half of costa; stigmata and lines black-brown; discoidal stigma reniform; postmedial line at c. two thirds of wing, slightly excurved near costa. Hindwing pale yellowish brown dorsally, yellowish white to pale brown ventrally; paler at base; postmedial line pale brown, inconspicuous, extending beyond basal half of wing. Cilia pale brown on forewing, yellowish white on hindwing, a brown line at base. Legs yellowish white. Front and middle tibiae brown; hind tibia with outer middle spurs c. half-length of inner spurs. Abdomen pale yellowish brown dorsally, yellowish white ventrally.

Male genitalia (Fig. 5A-C ). Valva nearly elliptical, bearing dense long setae distally; costa arched near middle and accompanied by a cluster of long setae; sacculus gradually narrowed distally, without long setal cluster. Phallus with one fusiform cornutus medially, composed of short and blunt spines, c. one fifth length of phallus; posterior half slightly inflated, and with two weakly sclerotized lamellar cornuti posteriorly.

Female genitalia (Fig. 5D-F ). Antrum broad and sclerotized, strongly sclerotized laterally, anteriorly adjoined by colliculum. Posterior ductus bursae slender, inflated, widened close to corpus bursae. Corpus bursae nearly oval, truncated terminally; with dense tiny spines inside, transverse signum crescent and densely spinose.

Distribution.

China (Yunnan), N. W. Himalayas.

Remarks.

This species is first recorded in China and its genitalia are described for the first time. It can be distinguished by the valva being nearly elliptical, the phallus with one fusiform cornutus medially and two weakly sclerotized lamellar cornuti posteriorly.

Figures

Figure 2. Habitus of Bradina species, male A B. megesalis B B. fusoidea sp. nov., holotype C B. spirella sp. nov., holotype D B. torsiva sp. nov., holotype E B. subpurpurescens F B. falciculata sp. nov., holotype G B. translinealis H B. ternifolia sp. nov., holotype. Scale bars: 0.5 cm.

Figure 5. Genitalia of Bradina species A-F B. translinealis A-C male, slide no. GJM 21165 D-F female, slide no. GJM 21167 G-K B. ternifolia sp. nov. G, H male, holotype, slide no. GJM 21173 I-K female, paratype, slide no. GJM 21178 B, C, H partial enlargement of phallus E, J partial enlargement of ductus bursae F, K signum. Scale bars: 0.2 mm (B, C, F, K); 0.5 mm (A, E, G, H, J); 1.0 mm (D, I).