Argyresthia (Argyresthia) campylotropa, Liu, Tengteng, Wang, Shuxia & Li, Houhun, 2017

Liu, Tengteng, Wang, Shuxia & Li, Houhun, 2017, Review of the genus Argyresthia Hübner, [1825] (Lepidoptera: Yponomeutoidea: Argyresthiidae) from China, with descriptions of forty-three new species, Zootaxa 4292 (1), pp. 1-135 : 47-48

35. Argyresthia (Argyresthia) campylotropa , sp. nov. ( Figs. 44 , 113 , 169 , 225 , 273 )

Description. Adult ( Fig. 44 ) wingspan 12.5 mm. Head white, face tinged with yellowish white. Labial palpus yellowish white. Antenna with scape white, pecten yellowish fuscous; flagellum white, ringed with blackish fuscous. Foreleg blackish fuscous on inner surface, tibia dotted with blackish gray at basal 1/3, 2/3, and distal end on outer surface, tarsus black on distal part of each tarsomere, remainder creamy white; midleg mostly creamy white, tibia dotted with blackish fuscous at base and at middle; hindleg mostly creamy white, tibia blackish gray on outer surface distally. Thorax white; tegula grayish fuscous. Forewing ratio 4.3; grayish fuscous between costa and fold, white between fold and dorsum; costa interspersed with black and white transverse striae on basal 3/5, black spot at middle largest, white spots at distal 1/5, 1/10, and near apex; black spot at middle of cell; grayish-fuscous streak below basal 2/5 of fold; dorsal fascia from before middle of wing blackish fuscous, extending to beyond basal 3/5 of costa; cilia blackish gray, white at costal white spots, gray near tornus. Hindwing and cilia uniformly gray.

Male genitalia ( Figs. 113 , 169 , 225 ): Tuba analis equal to width of valva in length. Socius covered with 15–17 scale-like setae, with posterior margin straight, bearing two or three long setae ( Fig. 225 ). Gnathos inflated distally, with 6̄11 long thick setae apically. Valva widest near middle, dorsal margin slightly arched medially; with a clump of thick setae in disc near ventral margin, a few similar setae on distal area. Saccus shorter than width of valva, with distal half linear. Phallus straight except curved at about basal 1/10, 3.7 times as long as width of valva ( Fig. 169 ). Second sternite with about 12 micro-setae in each row; eighth sternite Y-shaped. Coremata present.

Female genitalia ( Fig. 273 ): Ovipositor 2.9 times as long as eighth segment. Anterior apophysis 2/3 length of posterior apophysis, bifurcate before middle, branches fused, forming ventral margin of weakly sclerotized ostium bursae. Lamella postvaginalis inverted trapezoidal. Antrum funnel-shaped or slightly tubular, 2/3 length of eighth segment. Ductus bursae spinulate before and near opening of ductus seminalis, with anterior 1/5 slightly widened, densely covered with micro-spines; ductus seminalis originating from middle of ductus bursae. Corpus bursae oval, with dense hooked spines near ductus bursae, remainder with micro-spines and denticles; signum with basal plate band-shaped, horns extending obliquely outward, slightly curved inward, widely C-shaped.

Type material. CHINA: Holotype, Ƌ, Zezhawa (33.16°N, 103.92°E), Jiuzhaigou , Sichuan Province, 2400 m, 14.viii.2002, leg. Shulian Hao, slide no. LTT12443 . Paratypes: 1Ƌ, 1♀, same data as holotype, except 14, 15.viii.2002, slide nos . LTT12444♀, LTT12464Ƌ.

Distribution. China (Sichuan).

Diagnosis. This new species resembles A. (A.) grammosacca in the male genitalia, but shows a slight and distinct difference in the valva, with the dorsal margin slightly arched medially. In A. (A.) grammosacca the dorsal margin is nearly straight. The most diagnostic features are found in the female genitalia: in A. (A.) campylotropa the ovipositor is 2.9 times the length of the eighth segment, the lamella postvaginalis is inverted trapezoidal, and the horns of the signum are formed in C shape. In contrast, in A. (A.) grammosacca the ovipositor is 3.2 times the length of eighth segment, the lamella postvaginalis is triangular, and the horns of the signum are formed in trapezoidal shape.

Etymology. The specific name is derived from the Latin campylotropus, meaning curved, referring to the Cshaped horns of the signum in the female genitalia.

Figures

FIGURES 44 – 51. Adults of Argyresthia spp. 44, A. (Argyresthia) campylotropa, sp. nov., ♂, holotype; 45, A. (A.) punctuata, sp. nov., ♀, paratype; 46, A. (A.) trochaula Meyrick, ♂; 47, A. (A.) chlorella, sp. nov., ♂, holotype; 48, A. (A.) subrimosa Meyrick, ♀; 49, A. (A.) aphoristis Meyrick, collected from Sichuan Province, ♀; 50, A. (A.) aphoristis Meyrick, collected from Shanxi Province, ♂; 51, A. (A.) triangulata, sp. nov., ♂, holotype. (Scales = 2.0 mm)

FIGURES 108 – 113. Eighth sternite and male genitalia excluding phallus of Argyresthia spp. 108, A. (Argyresthia) decurtata, sp. nov., slide no. LTT 12842, holotype; 109, A. (A.) decurtata, sp. nov., slide no. LTT 12334, paratype; 110, A. (A.) minutisocia, sp. nov., slide no. LTT 12438, holotype; 111, A. (A.) scalprata, sp. nov., slide no. LTT 12134, holotype; 112, A. (A.) grammosacca, sp. nov., slide no. LTT 12439, paratype; 113, A. (A.) campylotropa, sp. nov., slide no. LTT 12443, holotype. (Scales = 0.2 mm)

FIGURES 166 – 169. Phallus of Argyresthia spp. 166, A. (A.) minutisocia, sp. nov., slide no. LTT 12133, paratype; 167, A. (A.) scalprata, sp. nov., slide no. LTT 12134, holotype; 168, A. (A.) grammosacca, sp. nov., slide no. LTT 12439, paratype; 169, A. (A.) campylotropa, sp. nov., slide no. LTT 12443, holotype. (Scales = 0.2 mm)

FIGURES 221 – 232. Socii of Argyresthia spp. 221, A. (Argyresthia) decurtata, sp. nov., slide no. LTT 12334, paratype; 222, A. (A.) minutisocia, sp. nov., slide no. LTT 12438, holotype; 223, A. (A.) scalprata, sp. nov., slide no. LTT 12134, holotype; 224, A. (A.) grammosacca, sp. nov., slide no. LTT 12439, paratype; 225, A. (A.) campylotropa, sp. nov., slide no. LTT 12443, holotype; 226, A. (A.) punctuata, sp. nov., slide no. LTT 12534, holotype; 227, A. (A.) trochaula Meyrick, slide no. LTT 12335; 228, A. (A.) chlorella, sp. nov., slide no. LTT 12337, holotype; 229, A. (A.) subrimosa Meyrick, slide no. LTT 12713; 230, A. (A.) aphoristis Meyrick, slide no. LTT 12348; 231, A. (A.) triangulata, sp. nov., slide no. LTT 12362, paratype; 232, A. (A.) subzonata, sp. nov., slide no. LTT 12338, holotype. (Scales = 0.1 mm)

FIGURES 271 – 273. Female genitalia of Argyresthia spp. 271, A. (Argyresthia) minutisocia, sp. nov., slide no. LTT 12794, paratype; 272, A. (A.) grammosacca, sp. nov., slide no. LTT 12324, paratype; 273, A. (A.) campylotropa, sp. nov., slide no. LTT 12444, paratype. (Scales = 0.5 mm)