Mr. J. R. Malloch on Exotic Muscaridse. -419 



SpUaria punctifer, sp. n. 



Female. — Black, subopaque, densely grey pruinescent. 

 Frous opaque ; autennce black : palpi yeUowish testaceous. 

 Thorax quadrivittate. Abdomen checkered as in lucorum, 

 Fallen. Legs yellowish testaceous, tarsi black. Wiugs 

 clear, cross-veins broadly iufuscated. Calyptrje -whitish. 

 Halteres yellow. 



Frons at vertex less than one-third of the head- width, 

 widened anteriorly, anterior orbital strongest ; orbits with 

 short setulffi laterad of the bristles : parafacial about as wide 

 as the narrow third antennal segment, the latter about four 

 times as long as second; arista with very long hairs above 

 and below ; eyes hairy. Thorax with three pairs of post- 

 sutural dorso-oentrals : prealar very small ; scutellura with 

 short hairs below on sides ; sternopleurals 2 : 2, the lower 

 anterior one small : hypopleura with short weak hairs below 

 spiracle. Fore tibia with one or two posterior median 

 bristles, the apical half of antero-dorsal surface with some 

 short setulffi ; mid-femur with one or two bristles on antero- 

 reutral and four or five on postero-ventral surface on basal 

 half : mid-tibia with four irregularly arranged posterior 

 bristles ; hind femur with four or five widely spaced antero- 

 ventral bristles, and one near base on postero-ventral surface ; 

 hind tibia with two or three antero-dorsal and antero- ventral 

 bristles. Costal thorn short ; outer cross-vein straight. 



Length 85 mm. 



Type, Zomba, Nyasaland, ix. 1910, in house {Dr. U. S. 

 Siannus). 



One female. 



The description of this species ought to have been included 

 in a previous part of this series, but was accidentally over- 

 looked when the manuscript was sent to the editor. 



Genus Dich-£tomyia, Malloch. 



In describing this genus I placed particular emphasis 

 upon the number of postsuturai dorso-ceutral bristles, and, 

 in fact, used this character as the basis for the generic name. 

 I find, however, that this is not a constant character, though 

 there are very few exceptions to the rule in the series of the 

 genotype species before me, only one specimen having three 

 strong bristles, the others having either two strong bristles 

 only or two strong and two very weak bristles behind the 

 suture. I have arrived at the decision that other characters 

 must be used to define the genus, and, in doing so, I have 



