86 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



PHOBOCERA LEVIS, new species. 



FroiU })iojninent beloAv, 0.29 of the liead width in the male,0.30 

 Hi the female (one of each) ; male with well-developed orbitals as in 

 the female; the two uppermost frontals recurved, lower end of row 

 reaching third antennal joint; frontal stripe narrower than para- 

 frontal, tlie latter and the parafacial rather wide and deep golden 

 pollinose, almost orange in the male; facial depression gray; palpi 

 yellow; facial ridges bristly almost to the arista. Antennae black, 

 five-sixths the length of the face, third joint rather narrow, nearly 

 three times the second, arista thickened on basal third, penultimate 

 joint short; bucca one-fourth the eye height. Thorax black, gray 

 pollinose, with four narrow black vittae; three dorsocentrals, two 

 sternopleurals; scutellum in both sexes with only three marginals, 

 the middle swollen, there being no small apicals in either sex. Alv 

 domen black, with thin yellowish-gray pollen which is slightly tes- 

 sellated in the male; first and second segments with a pair of me- 

 dian marginals, second and third with a pair of discals, abdominal 

 hairs depressed, still a few median ones suberect in male. Posterior 

 half of abdominal segments subshiniiig in male, less so in female. 

 Forceps of male slender, inner and outer of same length and all 

 fitting closely together although separate. Legs black, mid tibiae 

 with one bristle at middle on outer front side; hind tibiae with a 

 scattered row of bristles on outer side, one larger at middle. Wings 

 hyaline, fourth vein with unusually oblique bend, especially in male ; 

 third vein with about three hairs at base. 



Length 6-7 mm. 



Described from one male, Wenonah, New Jersey, May 15, 1910, 

 and from one female, Sidney, Nebr., June 29, 1915 (A. K. Fisher). 



Type.— Male, Cat. No. 25730, U.S.N.M. 



PHOROCERA SIGNATA, new species. 



Front of male 0.33 of the head width (the same in two), of female 

 0.31 to 0.36 (in three), gray at vertex, the pollen becoming decidedly 

 yellow at middle of parafrontals and continuing in this color down 

 the parafacials. Frontal bristles about nine, the posterior two re- 

 clinate the anterior reaching to base of third antennal joint and al- 

 most connecting with the well-developed row on the facial ridge; 

 antennae reddish, third joint black reaching almost to arista, third 

 joint about three times the second; arista thickened on basal two- 

 fifths. Palpi yellow. Thorax grayish pollinose, with indistinct 

 darker stripes. Dorsocentrals 4, stenopleurals 3. Scutellum with 

 three lateral and a small pair of apicals, the last slightly upturned, 

 also a small discal pair. Abdomen black with subshining change- 

 able spots in the gray 'pollen. A discal pair of bristles present on 

 second and third segments in the type and most of the other specimens 

 but absent on the second in one male and on both in the other. 



