12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 73 



anteiriorly, subshining near the vertex, the black color showmg through 

 on most of their surface. Frontals in three irregular rows. Face, 

 parafacial, cheek, and orbit white pollinose with satiny reflection. 

 The hairs below the lowest frontals are black, cheek with fine blackish 

 hair. Antennae reddish brown on basal joints; the third joint black, 

 a little more than twice as long as the second. Vibrissae considerably 

 above the oral margin, the distance being about equal to the second 

 antennal joint. Facial ridges bristly almost to the arista. Palpi 

 yellow; beard white. 



Thorax black with thin pollen anteriorly, posterior part and scu- 

 tellum brown. 



Abdomen black on the two basal joints, the third with broad golden 

 yellow band covering all but the apical fourth; fourth entirely golden 

 pollinose ; first and second segments each having one pair of median 

 marginal bristles; third and fourth with a marginal row. 



Legs black, front pulvilli elongated, as long as last two tarsal joints- 

 Hind tibia with numerous large, irregular bristles on outer side. 



Wings and calypters dark brown. 



Female. — Front at vertex 0.40 of the head width. 



Length, 13.5-14 mm. 



Described from two males and one female. The type is a male 

 from Federal District, Mexico (E. G. Smyth), the other male is 

 labeled simply " Mexico," while the female was collected at Campi- 

 nas, Brazil (F. X. Williams), 1924. 



T?/2>e.— Male, Cat. No. 40482, U.S.N.M. 



BELVOSIA LUTEOLA Ck>qaiUett 



Belvosia luieola Coquillett, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 253. 

 Goniomima luteola Townsend, Taxonomy of Muscoid Flies, 1908, p. 105. 



Male. — Front 0.40-0.41 of the head width at vertex, not widening 

 very rapidly; frontal bristles in two or three sparse rows, quite irreg- 

 ular; two pairs of proclinate orbitals. Parafrontals yellowish polli- 

 nose on lowest part, the remainder translucent and subshining; face, 

 paraf acials, cheeks, and posterior orbits silvery on light ground color. 

 Hairs of upper parafacial and cheek white. Antennae with basal 

 joints reddish brown, third joint black, elongated, four times the 

 second. Arista flattened nearly to the apex, which is acute. Vibris- 

 sae not very far above the oral margin, the distance equaling the 

 length of the second antennal joint; facial ridges with about six bris- 

 tles, not quite reaching the level of the arista; several small white 

 hairs outside the bristles. Palpi yellow; beard white. 



Thorax black with rather dense yellow pollen, the usual stripes 

 narrow and distinct; sternopleurals three or four; scutellum dark 

 yellow in ground color. 



