174 Annals of the South African Museum. 



Frontal prolongation of the head short, orange; palpi brown. 

 Antennae with the first scapal segment orange, second segment dull 

 yellow ; first flagellar segment dull yellow, pale with a dense pale 

 pubescence ; remainder of the antennae broken. Head bright orange, 

 the frontal tubercle large and high ; occipital mark not apparent. 



Pronotum brown. Mesouotal praescutum brown with three ill- 

 defined dark brown stripes that are not conspicuous on this dark 

 background ; anterior ends of the lateral stripes capped by a velvety - 

 black mark ; scutum pale brown with the lobes dark brown, at the 

 outer cephalic angle with a velvety-black spot ; scutellum and post- 

 iiotum pale brown. Pleura brown with scattered darker brown 

 markings. Halteres short, dark brown, the extreme bases paler. 

 Legs with the coxae brown ; trochauters dull yellow ; femora black, 

 the extreme bases a little brighter ; tibiae and tarsi black. Wings 

 with a pale grey tinge, the costal cell rather dark brown ; stigma 

 dark brown; a brownish seam along Cu, Rs, R. 2 , R.^ and _R 4 + 5 ; veins 

 black. Venation (Plate XII, fig. 35), Rs rather elongate for this genus 

 of flies; m-cn at the fork of M ; cell M rather broadly to merely 

 sessile. 



Abdominal tergites dull orange-yellow, brightest at the base, on the 

 sixth segment passing into brownish-black ; apical segments, including 

 the hypopygium, blackish ; lateral margins of the tergites narrowly 

 black ; sternites colored about as on the tergites. Male hypopygium 

 with the ninth tergite black, the caudal margin with a deep U-shaped 

 notch. Abdomen with numerous appressed hairs, moi*e elongate and 

 prominent toward the end of the organ. 



Habitat. South Africa. 



Holotype, $ , Barbertou, Transvaal, October, 1911 (H. Edwards). 



Type in the South African Museum. 



This interesting J\Vy///-o/o;<m is dedicated to its discoverer. 



NEPHROTOMA STRENUA, sp. n. 



Head orange without a dark occipital -mark ; antennae elongated, 

 flagellum bicolorous ; thorax with black stripes ; abdomen dull 

 brownish-yellow, toward the apex with an indistinct blackish auuulus : 

 hypopygium yellowish. 



Mule. Length 14'5 mm. ; wing 1*> mm. ; antennae about 9 mm. 



Frontal prolongation of the head short, yellow ; palpi brown, the 

 extreme tip of the last segment yellowish. Antennae with the first 

 scapal segment orange ; flagellar segments with the basal enlargement 

 light brown, the pedicels brownish-yellow ; flagellar segments elon- 

 gated, rather deeply incised beneath. Head yellow on the front and 



