Hyidiothripini

 Head and pronotum of Preeriella minutus, from Stannard (1957).

Belongs within: Phlaeothripidae.

The Hyidiothripini is a group of exceptionally small, laterally compressed thrips found in leaf litter. The third and fourth segments of the antennae are more or less fused in the genus Hyidiothrips, while in Smicrothrips and Preeriella they are broadly joined but the dividing suture remains distinct (Mound & Marullo 1996).

Characters (from Mound & Marullo 1996; Priesner 1960): Minute pale, frail species. Antenna with seven segments, segments III and IV fused or broadly joined. Pronotal setae long. Wings weak and narrow, sparsely fringed. Tarsi one-segmented. Abdominal pelta with one median slender sclerite and two lateral transverse sclerites; median abdominal segments with pleural sutures visible dorsally; larger lateral abdominal setae often obliquely truncate.

<==HyidiothripiniMM96
    |--CrinitothripsMM96
    |--MachadoniaMM96
    |--AdamantothripsP60
    |--Smicrothrips Hood 1952MM96
    |    `--*S. particulaMM96
    |--Hyidiothrips Hood 1938MM96
    |    |--*H. atomarius Hood 1938MM96
    |    |--H. japonicusMM96
    |    |--H. nanellus Hood 1957MM96
    |    `--H. tesselatus Hood 1952MM96
    `--Preeriella Hood 1939MM96
         |--*P. minutus (Watson 1937) [=Chirothripoides minutus]MM96
         |--P. fumosa Hood 1957MM96
         |--P. macilenta Hood 1957MM96
         |--P. marginata Hood 1957MM96
         |--P. microsoma Johansen 1982MM96
         `--P. totonaca Johansen 1986MM96

*Type species of generic name indicated

References

[MM96] Mound, L. A., & R. Marullo. 1996. The thrips of Central and South America: an introduction (Insecta: Thysanoptera). Memoirs on Entomology, International 6: 1–487.

[P60] Priesner, H. 1960. Das System der Tubulifera (Thysanoptera). Anzeiger der Österreichischen Akademie der Wissenschaften Mathematisch-Naturwissenschaftliche Klasse 13: 283–296.

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