Phylladothrips Priesner

Phylladothrips Priesner, 1933: 79. Type species Phylladothrips karnyi Priesner, 1933, by monotypy.

Paradexiothrips Okajima, 1984: 730. Type species Paradexiothrips bispinosus Okajima, 1984, by monotypy. Synonymised by Okajima 1988: 707.

Note.

Most species of Phylladothrips are found in the tropic and subtropic regions of Asia (Fig. 1). However, although described from Taiwan, the distribution of P. pictus extends to the temperate region, where this species was recorded from the Ryukyu Islands, the Izu Islands and Honshu of Japan (Okajima 2006). Three species of Phylladothrips are found in the subtropics of southern China - Guangxi and southeast of Xizang, where the fauna shares many thrips taxa with Southeast Asian countries and Japan (Dang et al. 2014). The area between mainland China and Australia is species-rich for thrips, not only both fungal feeding and plant feeding species. At present it is impossible to detect any distribution patterns due to limited exploration.

Diagnosis.

Small-sized fungus-feeders. Head a little wider than long, usually distinctly constricted at base (Figs 2 - 9); eyes large, longer than half length of head; postocellar setae usually slender, sometimes long and expanded at apex (Fig. 2); postocular setae well developed, expanded at apex; mouth-cone short and rounded, maxillary stylets broad, retracted far into head capsule, maxillary bridge weakly present or absent; antennae 8-segmented, II with campaniform sensorium on apical half of segment, III and IV with 1+2 and 2+2 sense cones respectively (Fig. 3). Pronotal am setae reduced, sometimes aa weak as well; major setae expanded at apex (Figs 2 - 9, 14); notopleural sutures incomplete; basantra scarcely present, or absent (Fig. 15); meso- and metanotum with weak setae and sculpture, metanotum median setal pair usually relatively long but pointed at apex; mesopresternum eroded medially (Fig. 15); metathoracic sternopleural sutures absent; fore tarsi unarmed; fore wings weakly constricted medially, without duplicated cilia (Fig. 17). Pelta hat-shaped (Figs 16, 18, 20), without campaniform sensilla; tergites II-VIII with two pairs of wing-retaining setae (Figs 20-23), sometimes VIII with only one posterior pair developed; accessory setae on tergite IX usually elongate but slender, S2 on male tergite IX well developed, about as long as S1 or a little longer (Fig. 5); tube shorter than head, anal setae usually shorter than tube; male sternite without pore plate.