260 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



ILYTHEA OSCITANS Walker. 



A single specimen, captured at Utuado in January. This species 

 was originally described from the United States, without any mention 

 of the exact locality. I have examined a specimen captured in Massa- 

 chusetts, forming a part of Dr. Garry de K. Hough's collection. 



ILYTHEA FLAVIPES Williston. 



Four specimens, captured at Utuado and Bayamon in January. It 

 was originally described from St. Vincent, West Indies, and has also 

 been reported from Rio Janeiro, Brazil. 



ATHYROGLOSSA NITIDA Williston. 



Three specimens, taken at Fajardo and Vieques Island in February. 

 This species was also originally described from St. Vincent. 



PSILOPA ACICULATA Loew. 



Forty-seven specimens, collected at Utuado, Mayaguez, Bayamon, 

 and Aguadilla in January, and Arroyo, Fajardo, and Vieques Island 

 in February. Originally described from Cuba, it has also been reported 

 from St. Vincent and Grenada islands, and from Eio Janeiro, Brazil. 

 I have studied specimens collected in Georgia and Louisiana, forming 

 part of the collection of Dr. Hough. 



PSILOPA NIGRIMANA Williston. 



Four specimens, collected at Utuado and Bayamon in January. Orig- 

 inally described from St.Vincent,West Indies, it has also been reported 

 from Brazil. 



PSILOPA MELLIPES, new species. 



Male and female: Body and head polished, black or bronze green ; in 

 the latter case usually with a strong violaceous tinge; antennie brown, 

 elongated, the third joint from two to almost three times as long as 

 wide; a single macrochieta near each lower corner of the face; probos- 

 cis brown, the apex yellow, palpi brown; thorax bearing a single pair of 

 dorso-central macrochaetae ; fourth segment of abdomen the longest — 

 about twice as long as the fifth in the male, but only one and one-fourth 

 times in the female; halteres and legs, including the coxae, yellow; 

 wings hyaline; apex of second vein midway between apices of the first 

 and third veins. Length, 1 to 1.5 mm. Four specimens, collected at 

 Utuado in January and Arroyo in February. 



Type.— Gut. No. 4377, U.S.N.M. 



ALLOTRICHOMA ABDOMINALIS Williston. 



A single specimen, taken at Utuado in January. It was originally 

 described from St. Vincent, West Indies, and has also been reported 

 from Brazil. 



