South African Higher Mijodm-i.i ( Dipt era Calyi>trt<-). 



The eyes have scattered hairs, and are about equally distant in the 

 two sexes (width f that from eye to vertex iii the <$ , aud J iu the 

 ). The cJ bears, like the ?, 2 orbital setae and the claws of 

 the anterior tarsi project little beyond the length of the last joint. 

 Thorax : sternopleural setae = 1 + 1 ; dorso-central = = 3 ; acrostical 

 setae complete. Scutellum with 4 marginal setae, the apical shorter 

 and weaker, crossed. Abdomen with marginal setae only. Legs long. 

 Head raised ; frous moderately convex ; epistome oblique below and 

 behind, eyes oblique below and in front; peristome wide (width 

 equal to ^ or -| that of the eye) and short. Antennae inserted in 



FIG. 3. $. 



front of the median part of the eyes, more or less shortened above 

 the mouth ; 2nd joint elongated, 3rd nearly 2^ the length of the 2nd ; 

 antennal cheta moderately long, slightly pubescent, with the 2nd 

 joint distinct but short. Great vibrissae very long, situated on the 

 level of the buccal border, a few short setae ascend along the facial 

 ridges to above the inferior angle of the eye ; 1 pair of weak but 

 somewhat developed ocellary setae ; 1 inner vertical, 1 prevertical 

 turning backwards and outwards ; in front the frontal setae project 

 beyond the insertion of the antennae to the number of 1-2 only. 

 Higher occiput with small black setae towards the median part, and 

 somewhat far beyond the ciliae, these small setae are sometimes 

 wanting. The peristome bears frequently a strong discoidal seta. 



