LIST OF DIPTEEA. 343 



1. OCNJEA MICANS. 



Fusca ; thorax pube cinerea micante vesfitus ; abdominis segmenta 

 2um et 3wn testacea ; alee fmcescente hyalincE. 



Ocnsea micans, Erichs. Entomogr. i. 155, 1. 

 Mexico. 



2. OCN^A LONGICOBNIS. 



Nigra, nitida ; thorax fusco villos^s ; abdomen testaceum, maculis 

 trigonis dorsalibus nigris ; alee fuscescente hyalince, ante api- 

 cem nigra. 



Ocnsea longicoruis, Erichs. Entomogr. i. 156, 2, pi. 1, f. 8. 

 Brazil. 



Genus 10. ERIOSOMA. 



Corpus villosura. Proboscis brevis. 



Eriosoma, Macq. Dipt. Exot. i. 2, 172. 

 Acrocera, p., Wied. 

 Ocnaea, p., Erichs. 



Subcostal vein ending at beyond half the length of the wing ; 

 mediastinal ending at abdut two-thirds of the length; radial ending 

 at about five-sixtlis of the length ; cubital simple, united near the 

 border with the lirst externo-medial ; second externo-mediul in- 

 complete; third and fourth united near the border of the wing; 

 subanal and anal united very near the border ; discal areolet elon- 

 gate, hexagonal. 



1. Eriosoma calida. 



Lute a ; pedes fusci ; ala hyalince, alulis eburneis, fusco limbaiis. 



Acrocera calida, Wied. Auss. Zweifl.u. 16, 1, pi. 7, f. 2. 

 Eriosoma calida, Macq. Dipt. Exot. i. 2, 173, 1, pi. 14, f. 5. 

 Ocnaea calida, Erichs. Entomogr. i. 157, 3. 



Brazil. 



PART II. 2 H 



