Halticorcus sauteri (S. - H. Chen, 1934)

Halticorcus sauteri (S. - H. Chen, 1934)

Fig. 8 I – O View Figure 8

Host plant.

Dryopteridaceae : Cyrtomium falcatum (L. f.) ; Oleandraceae : Nephrolepis cordifolia (L.) ; Polypodiaceae : Colysis elliptica (Thunb.) , Loxogramme salicifolia (Makino) , Leptochilus neopothifolius Nakaike , Lemmaphyllum microphyllum Presl. , Microsorum buergerianum (Miq.) , Phymatosorus scolopendria (Burm. f.) . Thelypteris acuminata (Houtt.) is also reported as adult’s host plants by Suzuki et al. (2008).

Leaf mine.

Upper-layer linear-blotch mine on mature leaf (Fig. 8 J – L, N, O View Figure 8 ). Frass is thread-like, thin, and often intermittent, and deposited along the meandering larval trajectory. The fully grown larva exits the mined leaf, falls to the ground, and pupates underground.

Material examined.

• 1 adult and several leaf mines, Imasato , Uken, Amami-ôshima Is. Kagoshima Pref., 4-IX-2011 on Cyrtomium falcatum (Fig. 8 K, L View Figure 8 ) ; • 2 adults, Angyaba , Tatsugô, Amami-ôshima Is. Kagoshima Pref., 8-V-1997 (as larva on Cyrtomium falcatum ), emerged on 22-VI-1997 ; • 22 adults, Kinsakubaru , Naze, Amami-ôshima Is. Kagoshima Pref., 3-VI-1996 (as larva on Nephrolepis cordifolia ), emerged on 2-VII-1996 ; • 1 adult, Naon , Yamato, Amami-ôshima Is. Kagoshima Pref., 11-V-2002 (as larva on Colysis elliptica ), emerged on 11-VI-2002 ; • 10 adults, Segiri , Nagata, Yaku Is., Kumage-gun, Kagoshima Pref., 27-V-1990 (as larva on Leptochilus neopothifolius ), emerged on? - VII- 1990 ; • 3 adults, Higashinamaka , Amami-ôshima Is. Kagoshima Pref., 20-V-2015 (as larva on Leptochilus neopothifolius ), emerged on 17–18-VI-2015 (Fig. 8 I – J View Figure 8 ) ; • 2 adults, Mt. Yuwan , Uken, Amami-ôshima Is., Kagoshima Pref., 30-VI-1992 (as larva on Microsorum buergerianum ), emerged on 25-VII-1992 ; • 1 adult and several leaf mines, Tonaki Is. , Shimajiri-gun, Okinawa Pref., 18-III-2020 (as larva on on Phymatosorus scolopendria ), emerged on 20-V-2020 (Fig. 8 M – O View Figure 8 ) .