58 Bulletin of the Brooklyn Entomological Society Vol. IX 



bristles in first row nearly in transverse line with upper post- 

 antennals and not much below the level of the outer pair, which are 

 distinctly closer to the eye margin ; antennae of moderate size ; 

 arista pubescent, nearly twice as long as f rons ; palpi rather large 

 and strongly bristled. Scutellum with 2 bristles ; mesopleura bare. 

 Abdomen tapering, dorsum with a few lateral hairs. Legs stout, 

 fore tarsus slender ; hind tibial setulse distinct though weak. Costa 

 to slightly beyond middle of wing, first division subequal to the 

 other 2 together, third as long as second ; fourth vein curved at 

 base, ending well in front of wing tip ; fringe rather close and 

 fine, the length of the hairs about 4 times the diameter of costal 

 vein. 



Length: 1.25 mm. 



Locality: Havana, 111., Sept. 20, 1895 (Hempel). 



This species will run down to inornata Malloch in my key to the 

 species in Group D in my paper on the family, but may be sepa- 

 rated from it by its smaller size, very different venation and other 

 characters. 



Aphiochaeta nasoni, new species. 



Male : black-brown. Frons distinctly shining, only slightly polli- 

 nose ; antennae black-brown ; palpi clear yellow. Mesonotum shin- 

 ing; pleurae yellowish brown, glossy on anterior half, posterior 

 half subopaque. Abdomen black-brown, slightly shining; anal 

 protuberance dull yellow. Legs brownish yellow, tarsi darker, 

 Wings clear, veins yellowish. Halteres clear yellow. 



Frons distinctly longer than broad, central furrow poorly de- 

 fined; lower pair of post-antennal bristles about half as large as 

 upper pair ; center pair of bristles in first row distinctly lower on 

 frons than outer pair and appreciably farther from eye margin; 

 antennae rather small ; arista almost bare slightly longer than 

 length of frons ; palpi larger than third antennal joint, moderately 

 bristly. Mesopleura with numerous short setulae and one long 

 and strong backwardly directed bristle on upper posterior fourth; 

 scutellum with 2 bristles. Abdomen tapering, segments 2 and 6 

 subequal, elongated, 5 slightly shorter than 6 and longer than 4, 

 which latter is subequal with 3, anal protuberance small, very 

 inconspicuously haired. Legs normal, hind femora flattened ; hind 



