169 



Labial palpi moderately long, recurved, second joint thickened 

 with dense appressed scales, more strongly in male, terminal 

 joint shorter than second, in male more or less thickened with 

 dense appressed scales, obtuse or acute, in female moderate, 

 acute. Posterior tibise clothed with long hairs above. Fore- 

 wings : 2 and 3 from angle of cell, 4 and 5 closely approxi- 

 mated, connate, or stalked, 7 and 8 stalked, 7 to costa, 9 and 

 10 approximated at base, 11 from before middle of cell. Hind- 

 wings two-thirds, lanceolate, cilia 2 J ; 2 remote, 4 absent, 3 

 and 5 connate or stalked, 6 and 7 tolerably parallel. 



A small but very widely distributed genus, with many 

 structural peculiarities. It is a much specialised form in a 

 line of development (probably ancient and once more prevalent 

 than now), of which the three following genera ar© earlier and 

 little specialised forms, these latter being, in fact, amongst 

 the most primitive of the Oecophoridce. The species are in 

 all regions obscure and closely allied, and require careful 

 attention for their discrimination. 



Blastobasis sarcophaga, n. sp. 



Male and female, 17-25 mm. Head, palpi, and thorax 

 rather dark shining ochreous-fuscous, more or less mixed with 

 whitish-ochreous ; second joint of palpi whitish-ochreous at 

 apex, and on upper half internally, terminal joint acute in 

 both sexes. Antennae fuscous. Abdomen pale brownish- 

 ochreous, segments with dark bronze median bar. Legs dark 

 fuscous, ringed with whitish-ochreous, hairs of pos- 

 terior tibiae whitish-ochreous. Forewings elongate, 

 narrow, long-pointed; bronzy-fuscous, suffusedly mixed with 

 whitish-ochreous and sometimes with dark fuscous, in one 

 specimen much suffused with rather dark fuscous; a cloudy 

 angulated dark fascia before middle, followed by an obscure 

 pale costal spot; a transverse series of three obscure dark 

 spots from three-fourths of costa to tornus, central spot rather 

 nearer base than others; a series of alternate pale and dark 

 spots round termen and posterior part of costa; cilia pale 

 whitish-fuscous, basal half mixed with fuscous. Hindwings 

 fuscous-whitish, becoming light fuscous posteriorly ; cilia 

 pale whitish-fuscous. 



Sydney, New South Wales, in November, February, and 

 April ; five specimens. 



Easily distinguished by its large size and especially dark 

 or darkly-marked forewings, contrasting with the especially 

 pale hindwings ; also' in the male by the acute apex of palpi 

 (which in the next species, the only one comparable with it in 



