436 INSECTA SAUNDERSIANA. 



Div. n. 



Structure of the wing-veins much like that of Div. D. Meig. Dipt. 

 i. 122, pi. 4, f. 15, but the discal aveolet is much longer, and the trans- 

 verse veinlet between, the third externo -medial vein and the subanal is 

 much nearer the base of the discal areolet. 



LiMNOBIA lERORATA. 



Limnobia irrorata, WietL Auss. Ziveifl. i. 574, 3. 

 East Indies. 



Div. n. 



Structure of the wing-veins like that of Div. E. 3Iei(j. Dipt. i. 125, 



pi. 6, f. 2, with the exception of the first externo-medial vein, which is 



not forked. 



I 



Limnobia FLAVicEPs ? Foem. 



Limnobia flaviceps ? Wied. Auss. Zweifl. i. 550, 16. 



Wiedemann describes the wings tii L. Jlaviceps as fuliginous; in the 

 insect here referred to that species they are blackish, with a white baud 

 which traverses the interior half of the discal areolet. 



South America. 



Div. n. 



Mediastinal vein at a little before two-thirds of the length of the 

 wing ; subcostal ending at about three-fourths of the length, connected 

 with the radial by a transverse veinlet at its tip ; radial and cubital 

 springing from a common petiole, which is less than half their length, 

 and which forms a right angle near its base ; radial forked near its base ; 

 cubital forming near its base a very obtuse angle, whence proceeds the 

 first externo-medial ; the latter is rectangular near its base and is 

 forked towards its tip, and is connected with the third externo-medial by 

 two transverse veinlets; the outer one of these forms a slight angle, 

 whence proceeds the second externo-medial vein ; third externo-medial 

 connected with the subanal by a transverse veinlet, which join.s the 

 middle of the hind side of the discal areolet. 



