Crenidorsum alpinus (Takahashi) comb. nov.

(Figs 49–51, 54–56)

Aleurotrachelus alpinus Takahashi, 1940: 29 .

Material examined. Taiwan: Taiheizen, 14 puparia on slide, on Rubus sp., 17.ix.1939, R. Takahashi; Taiheizen, 16 puparia on slide, on Rubus sp.; Taihoku (Taipei), 27.ix.1939, R. Takahashi (TARI).

Other material. Taiwan: Chihnankung, 3 puparia on 3 slides, on Trochodendron aralioides, 25.x.1992, C. C. Ko; 1 puparium on Smilax cbina, 5.xi.1994, C. C. Ko; Chiayai, 10 puparia on 7 slides, on Alocasia macrorrhiza, K. C. Chou; Hsinchu, 3 puparia on Alocasia macrorrhiza, 13.ii.2009, A. K. Dubey; Muzha, 1 puparium on Smilax cbina, 7.i.1995, K. C. Chou; Nantou, 2 puparia on 2 slides, on Siebold ardisia, 14.viii.1995, K. C. Chou; 2 puparia on 2 slides, on Thladiantha nudiflora, no date, C. C. Ko (NTU).

Host plants. Rubus sp. (Takahashi, 1940); Alocasia macrorrhiza, Siebold ardisia, Smilax cbina, Trochodendron aralioides, Thladiantha nudiflora (new records).

Distribution. Taiwan.

Remarks. Takahashi (1940) mentioned “three pairs of minute setae present on the cephalothorax, a pair of similar ones on the basal abdominal segment and near the vasiform orifice.” We observed the setae were absent on first abdominal segment, the three setae are cephalic, meso- and metathoracic; dorsum with many geminate pores, the smaller pore always placed on white shade. Further, he noted “the vasiform orifice with a very small blunt median tubercle”, we observed the tubercle is absent in some of his mounted puparia of Cr. alpinus .