244 Journal New York Entomological Society. [Voi. xxi. 



diverging upper and two converging lower fronto-orbitals ; three pairs of cru- 

 ciate bristles and an additional one above the base of each antenna; front 

 broader than long, the frontal suture arched over each antenna. Face extra- 

 ordinarily excavated to receive the large antennae, the facial orbits obliterated ; 

 cheeks one tenth the eye-height. The third joint of the antennae greatly en- 

 larged, subquadrate, reaching quite to the oral margin, densely clothed with 

 erect silky pubescence, the arista as long as the diagonal of this joint. Pro- 

 boscis long, slender, the elbow extending much beyond the epistome ; palpi 

 porrect, compressed, subulate. Mesonotum subshining, almost sericeous ; one 

 large dorsocentral, setulae numerous ; pleurae polished ; abdomen subshining. 

 Legs entirely black, at most the tarsi brownish. Halteres dull black ; calypteres 

 dusky, with a loose fringe. Wings hyaline, the veins black ; the vein between 

 the first and second basal cells wanting, anal cell entirely wanting; penultimate 

 section of the fourth vein about one fifth as long as the ultimate section and 

 about one half the length of the ultimate section of the fifth vein. 



Female. — The female diifers in the structure of the head. The third joint 

 of the antennae is much reduced in size, scarcely reaching the mouth and it is 

 less quadrate, but is similarly pubescent ; the arista is nearly two times the 

 length of this joint. The face is less remarkably excavated. 



Five males and two females from the Cedar Mountains of Idaho ; 

 Bellingham, Washington ; Cloudcrof t, New Mexico ; and Opelousas, 

 Louisiana. 



Neophyllomyza nitens new species. 



Female. — Length 2.25 mm. Polished jet black, the tarsi alone yellow; last 

 antennal joint and palpi dull black, the front sericeous except the polished 

 narrow orbits, ocellar triangle and the slender stripes bearing the cruciate 

 bristles ; the basal three segments of the abdomen lightly dusted. Front 

 nearly square, the uppermost frontal bristle inclinate, the next two divergent, 

 the lowermost two convergent, between the lowermost two is a pair of minute 

 convergent bristles ; five pairs of cruciate setulae ; postverticals large. Arista 

 microscopically pubescent, about six times as long as the third antennal joint. 

 Palpi very broad ; elbow of proboscis not reaching beyond the epistome. One 

 dorsocentral ; mesopleurae closely fine-hairy and not setulose ; one sterno- 

 pleural. Calypteres minute but with numerous cilia. Halteres black, the knob 

 polished. Wings hyaline ; penultimate segment of the fourth vein about one 

 third as long as the ultimate segment and equal to the ultimate segment of the 

 fifth, which is evanescent at the end ; second basal and anal cells minute, 

 barely formed. 



One specimen, Avon, Idaho, July 26, 1912. 



