252 PROCEEDINGS OF THE NATIONAL MUSEUM.' vol.xxii. 



PSILOPUS LONGICORNIS Fabricius, 



A single specimen, collected at Fajardo in February. The sijecies 

 was originally described from the West Indies. 



PSILOPUS PORTORICENSIS? Macquart. 



Five specimens, from Mayaguez and Aguadilla in January, and 

 Arroyo and Vieques Island in February. They agree very well with 

 the short description, which was based on a specimen from Puerto 

 Eico, except that the antennal arista is wholly bare. 



SYNTORMON BARBATUS Loew. 



Utuado, in January. A single specimen of this species, originally 

 described from the Middle States. 



CHRYSOTUS PALLIPES Loew. 



Thirty-two specimens, from TJtuado, Aguadilla, Bayamon, and May- 

 aguez in January, and Arroyo, Fajardo, Vieques Island, and Culebra 

 Island in February. Originally described from the Middle States, Dr. 

 Schiner has recorded it from South America, and it is among the 

 species reported by von Boeder from Puerto Rico. 



Family SYEPHIDJE. 



BACCHA CLAVATA Fabricius. 



Four specimens, collected at Aguadilla and Mayaguez in January, 

 and Fajardo and Arroyo in February. Originally described from South 

 America, this species is at present known to have a very wide range, 

 extending from Nebraska on the north to Buenos Ayres, Argentina, on 

 the south, and including the West Indian and neighboring islands. 

 Von Eoeder has already reported it from Puerto Eico. 



BACCHA species. 



Two specimens were bred from larvse feeding upon Dactylopius citri 

 on Culebra Island in February; they represent a species distinct 

 from the above, but are too immature to admit of a positive identi- 

 fication. 



OCYPTAMUS LATIUSCULA Loew. 



A single specimen, collected at Fajardo in February. This species 

 was originally described from Cuba, and has also been reported from 

 Jamaica and Santo Domingo. Von Eoeder has already recorded it 

 from Puerto Eico. 



ERISTALIS VINETORUM Fabricius. 



Seven specimens, collected at Mayaguez and Aguadilla in January, 

 and Arroyo in February. This species was originally described from 

 Brazil, and is now reported as occurring over nearly the entire eastern 



