HELOMYZID^. 



325 



abdominal segments on each side in front widened, below 

 with bristly pseudopods. 



For Curtonotum, a genus with pectinate costa, see Dro- 

 sophilidae. 



Fig. 131. Scoliocentra hclrola, enlarged. 



TABLE OF GENERA. 



1. A humeral bristle present. ..... 



No humeral, no propleural bristle. .... 



2. No bristle above base of front coxae (propleural). 



A bristle above base of front coxae. .... 



3. Spurs of middle tibiae curved (3 and fig. 131). 



Spurs of middle tibiae not curved. ...... 4 



4. Face much retreating in profile, the anterior oral border oblit- 



erated; four dorsocentral bristles present (2). Anorostoma. 

 Face not conspicuously retreating. ...... 5 



Helomyza. 

 Allophyla. 



- 



o 

 Scoliocentr a - 



