[ 391 ] 



XIII. Bepoi't on the Diptera collected hy the British Ornithologists' Union Uxpeditio7i 

 and the Wollaston Expedition in Butch New Guinea. Bij F. W. Edwards, 

 B.A., F.E.S. With a Section on the Asilidce hy E. E. Austen, F.Z.S* 



[Received January 14, 1915 ; Read March 9, 1915.] 



[Plate XXXVIIL] 



Index. 



Systematic : Page 



Sciara pondcrosa "Walker, redeseription . . 391 



Tipvla de-meijerei, sp. n 393 



Ptilocera violacea, sp. n 394 



Ptilocera, revision of genus 395 



Ptecticus atritarsis, sp. n 396 



Chrysopihis hinoculatus, sp. n 397 



Mcdra ivollastoni Austen, sp. n 398 



Page 



Maira nitida Austen, sp. n 400 



Promnchus raptor Austen, sp. n 402 



„ noscihilis Austen, sp. n 403 



Bissopiera piollinosa, gen. et sp. n 410 



PhyUdmia 1 ivollastoni, sp. n 418 



Ortaloptera cleitamina, gen. et sp. n. . . 419, 420 

 Rioxa Jiava, sp. n 421 



X HE pi-eparation of the following report was at first entrusted to my colleague, 

 Mr. E. E. Austen, but shortly after commencing the work he responded to the 

 call of military duty, and I have therefore reluctantly undertaken to complete a task 

 for which Mr. Austen is far better qualified. 



The collection is not a large one, comprising only 80 species, but so little have the 

 New Guinea flies been worked at that no fewer than twelve of these have had to be 

 described under new names, two of them apparently representing new generic types. 

 Eight or ten of the remaining 68 also appear to be at present unnamed, but, being 

 represented merely by single specim.ens, not always in the best of condition, and 

 belonging to groups whose classification is a matter of no little difficulty, I have 

 refrained from describing them. 



Family Sciarid^. 



Genus Sciara. 

 Sciara Meigen, Illiger's Mag. ii. p. 263 (1803). 



1. Sciara ponderosa. 



Sciara ponderosa Walker, Proc. Linn. Soc. London, vii. p. 230 (1864). 

 1 ? . Mimika Eiver, Aug. 1910'. 

 The species was previously represented in the British Museum Collection by 



* Published by permission of tlie Trustees of the British Museum. 



VOL. XX. — PART XIII. No. 1. — June, 1915. 3 k 



