Corythoxestis sunosei ( Kumata, 1998 )

Kobayashi, Shigeki, Huang, Guo-Hua, Nakamura, Akihiro & Hirowatari, Toshiya, 2013, Four new species of Gracillariidae (Lepidoptera) from China and Japan, and description of the pupal morphology of the genera Corythoxestis, Eumetriochroa, Guttigera, and Metriochroa, Zootaxa 3619 (2), pp. 101-129 : 121-122

Corythoxestis sunosei ( Kumata, 1998)

Figs. 2 K, 12.

Cryphiomystis sunosei Kumata, 1998: 107 –109, figs 10, 13(E, F), 15(C), 23(B), 27(A, B).

Corythoxestis sunosei: Kobayashi et al., 2011 , 26–27, figs 1A–B, 2A–L, 3, 4. Type locality: Japan (Kagoshima).

Pupa. Creamy yellow, 3 mm in length, 0.5 mm in diameter. Vertex with a stout, triangular frontal process flanked by a pair of long spatulate, about 2 x longer processes with a hair on inner 2/3. Dorsum of A2–A10 with a pair of long setae, and anterior part with a concentration of small spines; A10 prominently furcated with a pair of slender, long, slightly curved acute processes from caudal apex; another pair of laterally curved, half as long as caudal ones, claw-shaped processes from dorsal side. ( Kobayashi et al. 2011a, fig. 3).

Distribution. China (Kobayshi et al. 2011a), Japan (Nara and Okinawa Prefectures (new record), Kyushu (Kumata 1998)).

Host plant. Adina pilulifera (Lam.) Franch. ex Drake (new record), Mussaenda esquirolii H. Lév. (Kobayshi et al. 2011) , M. parviflora Miq. (new record) and Uncaria rhynchophylla (Miq.) Miq. ( Kumata 1998) (Rubiaceae) .

Specimens examined. 25 exs.

Adults: Japan: [Host: U. rhynchophylla ]: 3 exs, Kasuga–yama, Nara, 23.vii.1965 em., H. Kuroko,, 19.vii.1965; 1 ex, Mikata, Mitsushima, Tsushima Is., Nagasaki, 9.iv.2012 em., 27.iii.2012 (ex larva). 10 exs, Hyuga–line, Miyazaki, 6& 16–22. x. 1964 em., H. Kuroko, Host: Adina pilulifera . [Host: M. parviflora ]: 1 ex, Yona, Okinawa, 2.x.1989 em., H. Kuroko; 6 exs, Takeda, Ishigaki Is., Okinawa, 28.iii & 6–7.iv.2011 em., S. Kobayashi, 17.iii.2011 (ex larva); 4 exs, Yuwan, Uken, Amami, Kagoshima, 17–22.iii.2012 em., 6.iii.2012 (ex larva).

Biology. Kumata (1998) and Kobayshi et al. (2011) recorded the biology of this species on Uncaria rhynchophylla and Mussaenda esquirolii , respectively. In the present study, we observed the larvae on a new host plant, M. parviflora forming a narrow, serpentine mine; white to ocherous, about 20~ cm in length, 0.1~1.0– 1.3 mm in width ( Fig. 12 A, B, J). A pupal cocoon fold (whitish, 5 mm in length, 1.0– 1.5 mm in width) is situated at the end of the mine, usually along the leaf margins ( Fig. 12 M).

Figures

FIGURE 2. Adult of Oecophyllembiinae species from China and Japan. A. Metriochroa symplocosella sp. nov., holotype 3. B. Paratype ♀. C. Guttigera schefflerella sp. nov., holotype 3. D. Paratype ♀. E. Eumetriochroa araliella sp. nov., holotype 3. F. Paratype ♀ mining Evodiopanax innovans. G. Paratype 3 mining Dendropanax trifidus. H. Paratype 3 mining Fatsia japonica. I. Corythoxestis tricalysiella sp. nov., holotype 3. J. Paratype ♀. K. Corythoxestis sunosei (Kumata, 1998) 3 in Japan. L. Corythoxestis yaeyamensis (Kumata, 1998).

FIGURE 12. Biology of Corythoxestis sunosei (Kumata, 1998) on the adaxial epidermis of the leaves of hostplants. A, B, J – M. Mussaenda parviflora. C – I. Uncaria rhynchophylla. A, B, J. Mines by later instar larva and cocoon folds. C. Mine and cocoon fold. D. Young mine and later instar larva. E. Tigtly coild mine by young larva. F, J. Leaves and mines of hosstplants. G, K. Later instar larva. H, M. Cocoon fold. I, L. Final instar larva.