Psylla (s.l.) chujoi Miyatake, 1982

Inoue, Hiromitsu, 2010, The generic affiliation of Japanese species of the subfamily Psyllinae (Hemiptera: Psyllidae) with a revised checklist, Journal of Natural History 44 (5 - 6), pp. 333-360 : 338

Psylla (s.l.) chujoi Miyatake

Psylla chujoi Miyatake 1982b, p 169 . Type locality: Japan ( Yakushima Island ).

Miyatake (1982b) remarked that P. chujoi “seems to be closely related to Psylla buxi ( Linnaeus, 1758) ”, which occurs in Europe and North America and feeds on Buxus sempervirens L. However, I cannot find the morphological similarity of the two Buxus - feeders except the elongated female terminalia as the result of the direct comparison between the paratypes (three males and three females) of P. chujoi and the specimens (four males and two females) of P. buxi collected from North America (New Hampshire, USA). Furthermore, the female proctiger is strongly acute and upturned apically in P. chujoi and moderately acute and somewhat downcurved apically in P. buxi . The characteristics of the female terminalia of P. chujoi appear to be similar to those of Psylla yasumatsui Miyatake, 1963 and Psylla ziozankeana Kuwayama, 1908 , both of which are placed in Psylla (s.l.) in this study. Because the nymphs of P. chujoi are so far unknown, I will leave this species in Psylla (s.l.) until nymphs become available.

Distribution. Japan (Yakushima Island).

Host plant. Buxus microphylla var. japonica (Muell. Arg. ex Miq.) Rehder et Wils. (Buxaceae) ( Miyatake 1982b).