574 Mr. J. R. Mullocli on E.voHe Mii.scaiiJa\ 



Xenusia uiujvlata (Stein). 



One male, PunkuUam, Ceylon, 13. iii. 1891 (/. W. 

 Yerhury). 



This specimen has a dense coverino^ of mites on the ven- 

 tral surface and on the sides of the thorax anteriorly and 

 posteriorly. 



Xenosia morosa (Steiii). 



A bluish-black species with greyish pruinesc<nice on 

 thorax and abdomen; the antennae and palpi fuscous, and 

 the legs yellow. The antennpe are long and rather slender, 

 the third segment about four times as long as second, and 

 the arista is much shorter-haired than iu ungulata. The 

 anterior intra-alar bristle is absent as in that species, the 

 scutellum has some fine hairs on sides below, and the setuloe 

 on first vein are confined to the basal half of the vein. 



Three females, Nuwara Eliva, Cevlon, 6. v. 1891, and 12. 

 and 13. vii. 1892 {J, W. Yerbury). 



This species was originally described from Ceylon. 



The genus Mwgrapha^ Malloch, has the first vein setu- 

 lose, but on the apical instead of the basal half, and. the 

 arista is pubescent, not plumose. I inadvertently cited the 

 genotyjjc as intonsa, Stein, instead oi' tonsa, Stein. There is 

 no such species as Limnophura intonsa, Stein. This genus 

 is more nearly related to Limnophora than to Helina. 



Helina fuscoflava^ Malloch. 

 One female, Victoria, Australia (C. Freitcli). 



African Coenosiince. 



This subfamily is very well represented in Africa both as 

 to genera and species. The adults are, so far as 1 know, 

 predacious, feeding upon small insects of other orders and 

 Diptera, especially small Nematoceia, The larvae of some 

 species feed in much decayed wood, especially tree-stumps, 

 and others feed in rotting fruit. The genus Atherigona, 

 which is cosmopolitan in its distribution, is very commonly 

 found in Africa, but it is very ditficult to identify tiie 

 described species as they have been described on colour- 

 characters almost entirely. I hope to give some time to the 

 study of this genus next, and find some means of working 

 out the forms available to me. 



The subfamily, as at present understood, has the following 



