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

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Hypertrophidae

Overview

The adults rest with their wings folded steeply roofwise, with their thickened fore tibiae and tarsi extended in front. The larvae all feed on the green leaves of Myrtaceae. In Eupselia (16 spp.) the larvae are at first leaf-miners in Eucalyptus , later using the mine as a shelter while they feed on the adjacent leaf tissue. E. satrapella is one of a complex of similar species with orange and fuscous wings. The larvae of Hypertropha (4 spp.) form a tubular network shelter of silk and faecal pellets on the under side of Eucalyptus or Angophora leaves, emerging to feed on the surrounding leaf. The pupa resembles the withered stub of a twig. H. tortriciformis has metallic markings on the fore wing, with orange and black hind wings. [Common 1980.]

Description

Small; head smooth-scaled; ocelli absent; antennae filiform, scape without pecten; maxillary palps 4-segmented, folded over base of proboscis; labial palps recurved, short; epiphysis present; fore and mid tibiae and tarsi thickened with scales, hind tibiae with long piliform scales above and beneath; fore wing often broad, sometimes with pterostigma, and slightly raised tufts of metallic scales or metallic terminal spots; R 4 and R 5 stalked or fused, CuP present; hind wing with Rs and M 1 nearly parallel, CuP present; frenulum in female with 2-4 bristles; abdomen without dorsal spines; male genitalia with uncus a pair of hairy lobes or absent, gnathos absent, sacculus of valva with discrete triangular sclerite at apex. Larva with some secondary setae in SV group and sometimes in L group on A9, crochets in irregular biordinal circle. Pupa exposed, upright, attached by hooked setae on ventral rounded lobes of A9, and small hooked setae on truncate end of A8-9.

Distribution

Except for two species in New Guinea, the family is restricted to Australia.

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