AUSTRO-MAL AY AN DIPTERA 415 



N. scenopinoìdes Wk. J. Proc Lin. Soc. Ill, 81 ! (Aru, Wai- 

 giou, Batchian). 



Syn. Evasa pallipes Bigot, Ann. Soc Entom. 1S79, 220 (Batchian). 



One c/', two 9. Dorei Hum, N. Guin. Febr. ISlb (Beccari); 

 Andai, N. Guin. 1872 (L. M. D'Alherlis). 



The female has more yellow at the end of the scutellum , 

 than the male ; the knob of the halteres is brown. The descrip- 

 tion agrees tolerably well. 



Nerua mollis n. sp. (/ 9 . Abdomen brownish-yelbw ; wings 

 hyaline ; marginal and submarginai cells dark brown. Length : 

 5-6 mm. 



Stouter than N. impendens and scenopinoìdes, the wings com- 

 paratively longer and broader. Antennae yellowish, arista brown ; 

 head black ; front , above the antennae , densely grayish-polli- 

 nose. Thorax black, shining, clothed with a dense, short yello- 

 wish pubescence. Edge of the scutellum and its spines, yellow. 

 Halteres yellow, hardly tinged with brownish at the base of 

 the knob. Abdomen brownish-yellow ; in the 9 more brownish 

 towards the end and on the sides. Legs yellow, front tarsi 

 brown ; tips of the other tarsi also more or less brown ; in the 

 o^ the front femora and tibiae are somewhat infuscated in the 

 middle. Wings hyaline , veins pale brownish ; the stigma , the 

 marginal and submarginai cells dark browm, which color en- 

 croaches upon the first posterior cell at its distal end only , in 

 the shape of a pale cloud. 



Hah. Mt, Singalang, Sumatra, July 1878 (Beccavi). Two 

 specimens. 



NB. Evasa fulviventris Bigot, Ann. S. E. Fr. 1879, 220 

 (Moluccae) also has a yellowish abdomen ; but the dense pube- 

 scence of the thorax is not mentioned , nor do other parts of 

 the description apply to my specimens. E. hipars Wk. has the 

 wings colored differently. 



The well defined brown border of the wings, not overstep- 

 ping the third vein, except at its end, and in marked contrast 



