BY E. MEYRICK. 269 



rough scales anteriorly throughout. Forewings: 2 and 3 parallel, 

 6 and 7 out of 8, or 6 separate, 7 to costa. Hind wings 1, elongate- 

 trapezoidal, apex pointed, produced, termen emarginate, cilia 

 2i-3; 3 and -4 remote, parallel, 5 near 6, 6 and 7 rather approxi- 

 mated. 



Type D. heliochares^ Low. A development of JSlegacraspedus^ 

 from which it differs essentially only in the anteriorly roughened 

 terminal joint of palpi. The genus is endemic, and may prove to 

 be characteristic of the interior of the continent. Bactrolopha, 

 Low., is a synonym. Imago with forewings elongate, acute. 



1. Second discal stigma black, distinct 2. 



Second discal stigma absent 20. orthodesma. 



2. Groundcolour of forewings yellowish-brown 22. heliochares. 



Groundcolour of forewings white 21. marmorea. 



20, D. orthodesma, Low. 



{Bactroloplia orthodesma, Low., Trans. Roy. Soc. S. Austr. 

 1901, 79.) 



$(^. 10-12 mm. Head white. Palpi white, second and terminal 

 joints with subapical ochreous bands. Antennae white ringed 

 with dark fuscous. Thorax white, patagia- mixed with ochreous. 

 Abdomen in (J blackish, in 9 whitish-ochreous. Legs whitish, 

 tarsi banded with ochreous and fuscous irroration. Forewings 

 pointed; white mixed with pale ochreous; four broad direct 

 yellow-ochreous fasciae, finely sprinkled with dark fuscous, first 

 almost basal, second before middle, third at |, fourth less defined, 

 almost apical : cilia whitish, with scattered blackish points. 

 Hind wings in ^ blackish, in 9 ochreous-whitish; cilia pale 

 whitish-yellowish. 



Broken Hill, New South Wales, in October; I am indebted to 

 Mr. Lower for a 9, but have not seen the (J, the peculiar 

 secondary sexual characters of which I have stated from his 

 description. 



21. D. marmorea, Low. 



(Paltodora marmorea, Low., Proc. Linn. Soc. N.S.W. 1899, 96.) 



(J. 12 mm. Head white. Palpi white, second joint mixed 



with ochreous and dark fuscous except at apex, terminal joint 



