Mlc'RODOV. 12-") 



from the vertex anil distant fr.mi each other; face twice as broad 

 as the irons ; jowls with a small circular pit on each side.- Meta- 

 notum shining black, bare ; squarnulse and halteres pale yellowish. 

 Margins ot abdominal segments distinct ; genitalia black, clothed 

 with white hair. Small cross- vein close to the base of the discal 

 cell, almost in the same line as the cross-vein forming the distal 

 boundary of the second basal cell ; subapical and discal cells short, 

 the lower corner of the former bearing an appendix. 



A single male specimen from Uganda, Plains N.E. of Lake 

 Edward.' 3.1200 feet, "in open/' 15-1(5. x. 1911 (S. A. Xeave). 

 The type of the sp-cies was obtained in Belgian Congo. 



(JROUP IV. (punctulatus, IT'/ed.). 



The species belonging to this group are distinguishable from 

 those of the following one by their smaller size and the cylindrical 

 shape of body, the abdomen being not broader than the thorax and 

 having the second segment depressed in the middle, and elevated 

 and produced at the sides, rather like that of Omega%yrpku t but 

 to a less extent. They also have a more strongly punctate body, 

 the first joint of the hind tarsi greatly swollen, and are duller in 

 colour, being blackish brown and dark reddish. The ocelli and 

 legs show the same characters as in the following group, and the 

 subapical and discal cells have their lower corners broadly rounded 

 and without an appendix. 



In the collection there are two species, the first of which I 

 believe to be Wiedemann's species. The recently described 

 J/. titrsftlis, Herve-Bazin (1918), has the first joint of the hind 

 tarsi similarly shaped, but cannot be placed in the present group on 

 account of its bispinose scutellum. On the other hand, creuiasfo- 

 , apis, and caption, Speiser (1913), belong here, while 

 , Walker, is probably a Qraptomyza: 



1 (2) Thiid antennal joint black ; winjjs strongly 



infuseated ; abdomen in great part black ; 



length 13 mm ......................... punctulatits, \Vied. 



2 (1) Third antennal joint red like the others ; 



wings jrreyish hyaline ; abdomen in great 

 part reddish ; slender spe-.-k-s 9 rani, in 

 length ................................ rugosus, ?p. n. 



133. Microdon punctulatus, WieJemann (1824). 



A male specimen from Durban, Xatal (J. P. Cregoe), which I 

 assume to belong to this species, as it answers well enough to the 

 description, although Wiedemann gives a smaller size. In this 

 specimen the frons is of a dark reddish colour, like the face ; the 

 third antennal joint alone is black; thorax on the sides of the 

 dorsum and pleurae above, as far as the scutellum, reddish; the 

 second segment of the abdomen on each side, and the distal 



