Termioptycha cornutitrifurca Rong & Li, 2017

Li, Houhun, 2017, Review of the genus Termioptycha Meyrick, 1889 (Lepidoptera, Pyralidae) from China, with descriptions of four new species, Zootaxa 4329 (2), pp. 159-174 : 163-164

Termioptycha cornutitrifurca Rong & Li , sp. nov.

( Figs 6 , 16 )

Type material. CHINA: Holotype ♂, Bubang (21.60°N, 101.59°E), Mengla, Yunnan, 650 m, 23.VIII.2005, coll. Yingdang Ren, slide No. WYP06024 . Paratype: 1♂, Yongshing Farm , Lanyu, Taitung County, Taiwan, 20 m, 2006. VII.20, coll. Houhun Li and Xicui Du, slide No. WYP06017 ( NSYSU) .

Diagnosis. This new species is similar to T. longispina sp. nov. in both forewing pattern and male genitalia, but it can be distinguished by the lateral lobes of the juxta being straight spines that are approximately half the length of the uncus, and the cornutus uniform in basal 2/3 and trifurcate in distal 1/3. In T. longispina sp. nov., the lateral lobes of the juxta are large curved spines that are almost as long as the uncus, and the cornutus is a single spine.

Description. Adult ( Fig. 6 ) wingspan 27.0 mm. Head white, mixed with black and pale reddish fuscous. Male labial palpus with first segment black, about 1/3 length of second; second segment reaching vertex apically, white, suffused with black and pale reddish fuscous scales on outer side, with long white hair-like scales on inner side, ventral surface with long grey hair-like scales on distal 1/3; third segment black, white apically, about 1/3 length of second segment. Male maxillary palpus compressed and short; white mixed with black apically. Male antenna with scape expanded, black on ventral surface, white on dorsal surface; flagellum yellowish fuscous on ventral surface, with short greyish white cilia slightly longer than diameter of antenna, white on dorsal surface. Thorax white, mixed with pale reddish fuscous, with a transverse black strip medially; tegula pale reddish fuscous, mixed with white. Forewing with basal area black on anterior half, pale reddish fuscous on posterior half, white at base, with black scales on dorsum; median area white, mixed with pale reddish fuscous; distal area reddish fuscous, with dense black scales on anterior half; costal margin with a black rectangular mark at middle; antemedian line black, wide and short, from middle of lower margin of cell slightly oblique outward to beyond basal 1/3 of 1A+2A, then almost straight to basal 1/3 of dorsum; postmedian line wide, black, serrate, from distal 1/3 of costal margin sinuated outward to M3, then inward to CuP, finally vertical to distal 1/3 of dorsum; discal and discocellular spots represented by a black tuft, with white scales bordering its outer side; cell with a small black tuft at middle on lower margin, with white scales bordering its outer side; terminal line greyish white, along its inner side evenly spaced uniform black rectangular spots on anterior half, interrupted with greyish white on veins. Hindwing with basal half greyish white, distal half blackish grey; with a black spot at distal 1/3 of CuA2 and distal 1/4 of 2A respectively. Cilia of both wings greyish white, interrupted with black on extension of veins. Legs white on inner side; on outer side, fore leg with femur reddish fuscous mixed with white and greyish green, tibia white mixed with reddish fuscous, black basally and apically; mid- and hind legs with femora white mixed with black and reddish fuscous, tibiae white mixed with greyish green, with white mixed with greyish green hair-like scales; tarsi black, with each tarsomere white at apex. Abdomen greyish white on dorsal surface, suffused with reddish fuscous scales, with blackish fuscous spots on lateral margin.

Male genitalia ( Fig. 16 ). Uncus widest at base, slightly narrowed to apex; apex shallowly concave at middle. Gnathos narrowly banded, arched medially and forming a semielliptical circle, without seta. Valva rhomboid, with dense long hairs on distal 1/3; with a small sub-triangular process at base carrying sparse long hairs; terminal margin obtuse; costa reaching apex of valva, with a small triangular process at middle directing inward, with an apical spine; sacculus about 2/3 length of valva, wide at base, narrowed to apex. Juxta sub-rectangular; lateral lobe a straight spine, approximately half length of uncus. Saccus broad triangular. Aedeagus approximately as long as valva, with three thin spines arising from before apex and one of them bifurcate distally; cornutus uniformly narrow in basal 2/3, trifurcate in distal 1/3.

Female unknown.

Distribution. China ( Taiwan, Yunnan).

Etymology. The specific name is derived from the Latin cornutus and trifurcus, referring to the cornutus trifurcate in distal 1/3.

Figures

FIGURES 4 – 13. Adults of Termioptycha spp. 4, T. nigrimacularis sp. nov., holotype, ♂; 5, T. longiclavata sp. nov., paratype, ♂; 6, T. cornutitrifurca sp. nov., holotype, ♂; 7, T. longispina sp. nov., holotype, ♂; 8, T. albifurcalis, ♀; 9, T. bilineata, ♂; 10, T. conjuncta, ♂; 11, T. margarita, ♀; 12, T. eucarta, ♂; 13, T. inimica, ♂. Scale bars: 2.0 mm.

FIGURES 14 – 19. Male genitalia of Termioptycha spp. 14, T. nigrimacularis sp. nov., paratype, slide No. RH 15532; 15, T. longiclavata sp. nov., paratype, slide No. RH 15175; 16, T. cornutitrifurca sp. nov., holotype, slide No. WYP 06024; 17, T. longispina sp. nov., holotype, slide No. WYP 06018; 18, T. albifurcalis, slide No. RH 16075; 19, T. bilineata, slide No. RH 16053. Scale bars: 0.5 mm.