40 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.64 



broad infumations, located between first vein and anterior crossvein 

 surrounding posterior crossvein, and at apex, the last rectangularly 

 excised within; sections of fourth vein 1 : 3. Length 5 mm. 

 Habitat. — Brazil. 



62. SOBAROCEPHALA FLAVA, new species 



(Fig. 22.) 



Female. — Head ochraceous, ocellar dot black, cheeks and mouth- 

 parts flavous, third antenna! joint reniform, blackish, with finely 

 plumose arista; head bristles black and strong, four or five long 

 delicate buccal hairs. Thorax ocliraceous, notal hairs close fine and 

 dusky; prescutellar setae present, two lateral setae on scutellum, 

 sternal hairs not conspicuous. Abdomen reddish yellow, darker 

 posteriorly. Legs yellow, the front tarsi brown, tibial spurs black, 

 flexor setae of front femora vestigial. Wings hyaline, lightly infirni- 

 ated about apical end of second vein, costal ratio 4.5 : 1.2 : 1, 

 fourth vein L2 : 1 : 3, fifth vein 1.5 : 1; halteres yellowish ; calypteres 

 yellowish with blackish border and fringe. Length 3 mm. 



Puparium. — Reddish bro\^Ti, trilobed at cephalic end, trans- 

 versely striated, posterior end irregularly rugose, tipped with two 

 simple hooks, anal opening surrounded by a black nearly semi- 

 circular plate, venter of last segment sharply margined behind. 

 Length 3.5 mm. 



Types. — Reared by Shannon from puparia found at Dead Run, 

 Fairfax County, Virginia, in what was thought to be a maple log, 

 the adults issuing April 15. Type in National Museum, Cat. No. 

 26270, U. S. N. M. Paratypes from Plummer Island, Md., Falls 

 Church. Va., and Opelousas, La. All the specimens are females. 



63. SOBAROCEPHALA FLAVISETA Johnson. 



Heteromeringia Jlaviseta Johnson, Psyche, vol. 20, p. 99 (1913). 



Yellow, the face, cheeks, lower occiput, hiuneri, pleurae, coxae 

 and legs whitish; head bristles yellowish; antennae fidvous yellow, 

 arista blackish; posterior abdominal segments with brownish marks; 

 wings yellowish hyaline, apical third slightly clouded, especially 

 near veins; 4 mm. 



Hahitat. — New Jersey. One of the two known specimens was 

 recorded in the New Jersey list under the name of Clusia fiava. 

 The species discussed by Malloch &s Jlaviseta is convergens. 



64. SOBAROCEPHALA HUMERALIS. new species. 



(Fig. 25.) 

 Female. — Front and center of face brownish yellow, the ocellar, 

 dot blackish, occiput luteous, cheeks and facial orbits pale yellow 

 with a conspicuous dark spot below the eye; antennae flavous, 



