Gargela quadrispinula, 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 : 51

Gargela quadrispinula sp. nov.

Figs. 6 , 18 , 29

External characters. Wing span 12–14mm. Frons, labial palpi, maxillary palpi and antennae orange-brown. Thorax and abdomen pale yellow; legs yellow-brown. Forewing silvery white; medial line fuscous, from middle of costa to discocellulares, then bent to inner margin; submarginal line fuscous, 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; cilia 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 tapering pointed, slightly curved to dorsal; tegumen triangular, elongate; valva with basal broad and apical contracted, costal arm longer than valva, apart from valva, the apex pointed, sacculus strongly sclerotized; juxta long oval-like, with two lobe-like processes at apex; aedeagus round at apex, with four spine-like cornuti.

Female genitalia. Anal papillae weakly fused, with dense setae; apophysis posterioris little shorter than apophysis anterioris; ostium bursae bifid, slightly sclerotized; ductus bursae long, swollen and sclerotized at middle; corpus bursae elliptic, with two spine-like signa.

Holotype. IZCAS: 3, Guangxi, Mt. Miao’er (25.8ºN, 110.4ºE), 2141m, 1985. VII.8, leg. Song Shimei (genital slide number C1680).

Paratypes. IZCAS: 1Ƥ, Guangxi, Longsheng (25.7ºN, 110.0ºE), 1963. VI.14, Wang Chunguang (genital slide number C1364); 231Ƥ, Guangxi, Longsheng (25.7ºN, 110.0ºE), 300m, 1980. VI.8–14, Song Shimei (C1076); 238Ƥ, Guangxi, Longsheng, Hongtan (25.7ºN, 110.0ºE), 900m, 1963. VI.11, Wang Chunguang (C1074, C1363, C1365, C1075); 13, Guangxi, Napo (23.7ºN, 106.8ºE), 1350m, 2000. VI.18, Zhu Chaodong; 13, Guangdong, Nan Ling (25.2ºN, 113.5ºE), 865m, 2005. VII.9, Chen Fuqiang (C1674).

Distribution. China (Guangdong, Guangxi).

Remarks. This species is similar to G. bilineata sp. nov., but can be distinguished by following: in external characters, forewing of this species with one submarginal line and without the fuscous spot at the lower angle of cell, while the latter with two submarginal lines and with a fuscous spot at the lower angle of cell; in male genitalia, this species with 4 spine-like cornuti in aedeagus while a row of spine-like cornuti in latter; in female genitalia, this species with the bifid ostium bursae different with G. bilineata .

Etymology. The name is derived from the Latin “ quadr ” and “ spinula ”, corresponding to the 4 spine-like cornuti in aedeagus.

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.