ADAMS : DIPTEROLOGICAL CONTRIBUTIONS. 47 



ous, pleurae black ; first segment of abdomen black, remain- 

 ing testaceous ; coxae and base of femora testaceous, outer 

 end of latter rufous, hind ones with black ring at base and 

 short dark spines beneath, tip of anterior and posterior tibiae, 

 anterior and posterior tarsi and last two joints of middle tarsi 

 black ; wings hyaline, tinged with fuscous, more so towards 

 apex. Length of body, 7 mm. ; wing, 7 mm. 



Two specimens ; Salisbury, South Africa. Frank L. Snow. 



