LIST OF DIPTEEA. 761 



Radial vein nearly straight, joining the subcostal at some 

 distance from the tip of the latter. Cubital forked at very much 

 beyond half its length ; forks hardly undulating, a little nearer to 

 each other in the middle than towards each end. First and second 

 externo-medial veins nearly straight ; third slightly curved, forming 

 an obluse angle with the prsebrachial, joining the fourth far from 

 the border. Subanal joining the anal at some distance from the 

 border. 



South America. 



1. Lecania rufipes. 



Flavida ; thorax nigro vittatus ; abdomen nigrum ; pedes rufi ; 

 alajlavescentes. 



Lecania rufipes, Macq. Dipt. Exot. i. 2, 131, pi. 11, f. 2. 



Brazil. 



Var. ? Mas. et foem. Cervina ; caput et pectus alba, ilium albo 

 pilosum ; antenna rufescentes ; thorax vittis duabus dorsalibm 

 maculisque laieralibus fuscis ; abdomen supra piceum mar- 

 ginibus posticis fulvis, apice nigrum; pedes fulvi, femoribus 

 posterioribus tarsisque apice nigris ; alee subfuscescentes, apice 

 obscuriores. 



Fawn colour. Head and pectus white. Head clothed beneath 

 with white hairs. Face slightly convex towards the epistoma. 

 Mystax small. Proboscis black, lanceolate. Antennas dull reddish ; 

 first joint more than twice the length of the second ; third elongate- 

 conical, much shorter than the first ; arista full four times the 

 length of the third. Thorax with two brown dorsal stripes, and 

 four brown lateral oblique spots. Abdomen above piceous ; hind 

 borders of the segments tawny ; tip black. Legs pale tawny, with 

 a few black spines ; tips of the posterior femora and of the tarsi 

 black. Wings slightly brownish, darker towards the tips. Halteres 

 testaceous. Male. — Arista dilated at the tip. Sexualia of moderate 

 size; forceps broad, obtuse. Fern. — Arista not dilated. Apical 

 fourth part of the abdomen stylate. Length of the body 7 — 8 lines ; 

 of the wiugs 12 — 13 lines. 



a. Santarem, Brazil. From Mr. Bates' collection. 



b. ? 



3 u2 



