16 PROCEEDINGS OF THE NATIONAL MUSEUM vol.68 



The postvertical bristles are closer together, and the inner cross 

 vein of wing is a little nearer middle of the discal cell causing the 

 last section of fourth vein to be very slightly longer than the pre- 

 ceding section. 



Length, 7 mm. 



Type. — Cayenne, French Guiana (W. Schaus). Cat. No. 28450, 

 U.S.N.M. 



This species appears to be very close to the genus Melinomyia 

 Kertesz, the only difference being that in the latter there is a bristle 

 near the upper anterior angle of the mesopleura which is absent in 

 the present species. Structurally they are almost identical judging 

 from Kertesz's figure and description. 



MINETTIA BIPUNCTATA (Say) 



This species is smaller than evittata, being about 4 mm. in length. 

 The face is unspotted, the thorax is without vittae, the pair of apical 

 spots on scutellum are small, the abdomen has very narrow dark 

 hind margins to the tergites and a series of dark spots in center apic- 

 ally, while the wings are browned along costa as far back as third 

 vein, beyond it apically, and both cross veins are brown clouded. 



The frons is not one-third of the head width; the orbital bristles 

 are long, the anterior one not far removed from eye; arista subnude; 

 occiput strongly setulose. The anterior pair of the three pairs of 

 postsutural dorsocentral bristles is very close to suture; both sterno- 

 pleurals and the propleural bristle strong. Fore femur without an- 

 teroventral preapical comb. Outer cross vein of wing at two-fifths 

 from apex of discal cell. 



Originally described from Mexico and recorded from the West 

 Indies. I have before me a specimen from Kingston, Jamaica. 



MINETTIA GENISETA, new species 



Female. — Testaceous j-ellow. Frons opaque, shining on orbits and 

 triangle; face slightly shining, sides grayish yellow dusted. Thorax 

 and abdomen immaculate. Wings grayish hyaline, cross veins al- 

 most imperceptibly clouded. 



Frons at vertex a little less than one-third of the head width, 

 widened anteriorly; orbital bristles long and strong, the anterior 

 one farther from eye than posterior one; oceller bristles parallel, of 

 medium length, situated behind level of anterior ocellus; postverti- 

 cal bristles situated well below the rounded vertex, larger than ocel- 

 lars; arista plumose; one or more of the postocular setulae at lower 

 level of eye strongly developed, bristle like, the usual two strong 

 bristles present on lower margin of occiput on each side. Postsutural 

 dorsocentral bristles in three pairs, prescutellar acrostichals strong; 



