6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 69 



MICROPHTHALMA RUFICEPS, new species 



Male. — Front at the narrowest (just before ocelli) 0.24 and 0.27 of 

 the head width (in the two specimens). 



The whole front of the head, beginning a short distance from the 

 ocelli and extending to the mouth and part way up the posterior 

 orbit, is red in ground color overlaid with thin silvery pollen; no 

 ocellar bristles; frontal bristles about seven, only the hindmost pair 

 decussate and a little reclinate. Antennae red with only a very 

 slight trace of infuscation at tip of third joint; second joint fully 

 half the third ; arista short, black, with only microscopic pubescence ; 

 palpi yellow, small ; dorsum of thorax with dense gray pollen show- 

 ing when viewed from behind a narrow black stripe each side be- 

 tween the acrostichals and the dorsocentrals, ending a little behind 

 the suture, and a broader interrupted outer stripe, the part before 

 the suture being triangular, the remainder extending almost to the 

 scutellum. Scutellum with three lateral bristles, the middle one, 

 however, rather small, and a large decussate apical pair. 



Abdomen with broad pollinose hands of gray, the posterior third 

 or more of the second and third segments subshining and in some 

 lights with brown pollen; fourth segment gray pollinose to the 

 middle, remainder shining; first segment without median marginals; 

 second with one pair; third segment with marginal row of ten; 

 fourth segment with irregular bristles, beginning a little before the 

 middle, and an apical row considerably smaller. Genitalia brown. 

 Legs black ; claws and pulvilli enlarged ; middle tibia with two bris- 

 tles on outer front side; hind tibia with an irregular scattered row 

 on outer hind side. Calypters white. Wings subhyaline, the veins 

 yellowish red; hind cross vein and apical cross vein decidedly black. 

 No distinct infuscation, even on the small cross vein. Third vein with 

 about six small hairs at the base; the fourth vein ends in the costa 

 considerably before the apex, its distance from extreme apex is fully 

 equal to the costal segment between third and fourth veins. 



Length, 8 mm. 



Described from two males, collected by C. H. T. Townsend at Wild 

 Horse Canyon, Animas Mountains, New Mexico ; altitude 5,000 feet. 



ry/>e.— Male, Cat. No. 28862, U.S.N.M. 



MICROPHTHALMA VIRENS. new species 



Female. — Front at vertex (narrowest part) 0.34 of the head- 

 width (the same in two specimens). Parafrontals and parafacials 

 densely covered with golden pollen which extends to the border of 

 the mouth and covers the back of the head except the upper, portion. 

 First two joints of antennae red, the third joint black except the ex- 

 treme base; second joint fully half as long as third; arista short, 



