What Bug Is That? The guide to Australian insect families.

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Though some psilids are agricultural pests in other countries, no pest species are recorded for Australia. Larvae of Chyliza spp. are recorded in sap flows of trees, eating into stems or roots of plants or making galls.


The main diagnostic features (particularly for Chyliza ) include:

Subcostal break of vein C extensive; vein Sc abruptly discontinued opposite break, not distally converging with vein C; Vein R1 without setulae; face strongly sclerotised and prominent, but with narrow median groove on lower margin; metathoracic postcoxal bridge present.


Though the family is widely distributed in the Northern Hemisphere, only the genus Chyliza lives in Australia (found from north Queensland to Victoria) and our two species are undetermined as yet.

  • Chyliza sp.