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

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Bombycidae

Overview

Except for the introduced, domesticated, commercial silk worm, Bombyx mori , the most important silk-producing moth, which has so-called 'naked' larvae because the secondary setae are extremely fine, 2 native, Australian species probably belong to this family. Gastridiota adoxima is known from rainforests in southern Qld and northern N.S.W.; the larvae, which have scattered, very short setae and bright yellow spiracles, feed on Ficus and pupate in an elongate strong cocoon. One species of Elachyophtalma is known from Cape York Peninsula.

Description

Antenna bipectinate to apex in both sexes; proboscis absent; maxillary palps absent; labial palps short; epiphysis present or absent; spurs 0-2-2 or 0-0-0; fore wing with or without retinaculum, R 1 , R 2 and R 3 separate and at least R 2 and R 3 arising successively from stem of R 4+5 , CuP sometimes present; hind wing with functional or reduced frenulum present, dorsum often pleated, somewhat concave, Sc and Rs usually connected by R 1 , CuP often present towards margin. Larva with coarse, secondary setae in early instars, with fine secondary setae (in Bombyx ) or scattered, short, coarse secondary setae (in Gastridiota ) when mature; crochets biordinal, simple. Pupa in dense cocoon of silk.

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