Gargela hastatela, Song, Shimei, Chen, Fuqiang & Wu, Chunsheng, 2009

Song, Shimei, Chen, Fuqiang & Wu, Chunsheng, 2009, A review of the genus Gargela Walker in China, with descriptions of ten new species (Lepidoptera: Crambidae, Crambinae), Zootaxa 2090, pp. 40-56 : 46-47

Gargela hastatela sp. nov.

Figs. 4 , 16 , 27

External characters. Wing span 14mm. Head and thorax white; labial palpi ochreous, upturned; antennae pale yellow; frons pale brown; top of head, collar, tegula, dorsal thorax silvery white. Abdomen with dorsal brown, ventral and legs white. Forewing silvery white, medial line yellow-brown, from middle of costa to discocellulares, then bent to inner margin, the terminal of medial line expanding into a large black patch on middle of inner margin; submarginal line yellow-brown, from costa to vein M1 then bent inwards to anal angle; marginal area suffused with orange-yellow longitudinal fasciae along the veins and a black spot between M3 and Cu1; a black marginal line from apex to middle of outer margin; cilia silvery white, suffused with dark brown. Hindwing white, female suffused with ochreous; cilia silvery white, male with a tuft of yellow-brown cilia at anal angle.

Male genitalia. Uncus strong, the apex pointed, ventral with a tuft of thick setae; gnathos hastate-like laterally, slightly curved downwards; tegumen narrow and elongate; valva with basal broad and apical contracted, costal arm with the same length as valva, apart from valva, the apex pointed; juxta long oval-like, with two lobe-like processes at apex; aedeagus elongate with a row of spine-like cornuti.

Female genitalia. Anal papillae weakly fused, with dense setae; apophysis posterioris about 1/2 the length of apophysis anterioris; ostium bursae bifid, strongly sclerotized; ductus bursae long, swollen and little sclerotized at the basal part; corpus bursae rounded, with two rhombus-like signa.

Holotype. IZCAS: 3, Sichuan, Mt. Emei (29.5ºN, 103.3ºE), 1700m, 1979. VI.17, leg. Bai Jiuwei (genital slide number C1080).

Paratypes. IZCAS: 2Ƥ, same data as holotype (genital slide number C1690, 1692).

Distribution. China (Sichuan).

Remarks. This species is similar to G. bilineata sp. nov., but different in following: in external characters, forewing of this species does not have the spot at the lower angle of cell, while the latter has a fuscous spot at the lower angle of cell; in male genitalia, this species with the gnathos hastate-shaped, that is characteristic of this species; in female genitalia, the bifid ostium bursae can easily distinguish with G. bilineata .

Etymology. The name is derived from the Latin “ hastate ”, corresponding to the shape of the gnathos.

Figures

FIGURES 1 – 6. Adults. 1, G. xanthocasis, male; 2, G. renatusalis, female; 3, G. bilineata sp. nov., holotype, male; 4, G. hastatela sp. nov., holotype, male; 5, G. hainana sp. nov., holotype, male; 6, G. quadrispinula sp. nov., holotype, male.

FIGURES 13 – 18. Male Genitalia (a: aedeagus). 13, G. xanthocasis; 14, G. renatusalis; 15, G. bilineata sp. nov.; 16, G. hastatela sp. nov.; 17, G. hainana sp. nov.; 18, G. quadrispinula sp. nov.

FIGURES 25 – 30. Female Genitalia. 25, G. renatusalis; 26, G. bilineata sp. nov.; 27, G. hastatela sp. nov.; 28, G. hainana sp. nov.; 29, G. quadrispinula sp. nov.; 30, G. xizangensis sp. nov.