126 THE CANADIAN ENTOMOLOGIST 



SOME NEW NORTH AMERICAN SAPROMYZID^ (DIPTERA). 



BY J. R. MALLOCH, 

 Urbana, I!]. 



Some of the species described herein have been in my possession for some 

 years, while others were recently submitted for identification by Mr. W. L. 

 McAtee, in connection with the preparation of a paper on the species occurring 

 in the vicinity of Washington, D.C., and by Mr. C. W. Johnson. The location 

 of the type specimens is stated in the paper. 



Minettia punctifer, sp. n. 



Female. — Testaceous yellow, shining, thoracic dorsum densely yellowish 

 pruinescent. Antennae and palpi yellow; frons opaque, paler on orbital stripes 

 and ocellar triangle than on interfrontalia; ocellar spot black. Thoracic dorsum 

 with a pale brown dot at base of each hair and bristle. Abdomen with a black 

 spot in centre of each tergite from 2 to 5 inclusive and a smaller spot on each 

 side of the apical two or three tergites. Legs pale. Wings clear. 



Frons a little longer than wide, with two strong backwardly directed orbital 

 bristles on each side; arista with very short hairs; parafacial and cheek very 

 narrow. Thorax with three pairs of dorsocentrals, one pair of strong pre- 

 scutellar acrostichals, and a moderately strong intra-alar bristle. Hind femur 

 and hind tibia without preapical bristle. Last section of fourth \'ein about L75 

 as long as preceding section. 



Length 2 mm. 



Type. — Fort Lauderdale, Fla.,' February 18, 1919, (A. W^etmore). T\pe in 

 collection of U. S. Bureau of Biological Survey. 



Sapromyza nubilifera, sp. n. 



Male and Female. — Testaceous yellow, shining. Both cross-veins broadly 

 infuscated. 



Similar in all respects to niihila Melander in cephalic and thoracic details, 

 differing in the male only as follows" Apical sternite with a series of short black 

 setuke on apical margin, which are absent in nubila; hind tibia and hind meta- 

 tarsus with long, fine hairs on anterior surface, which are absent in nubila; 

 Hind femur in both sexes without fine hairs on antero- and postero-ventral 

 surfaces, the latter especially lacking these, which are present in niibihi. 



Length 3.5-4.5 mm. 



Type. — Male, and one male paratype, Monticello, 111., June 21. 1914. 

 Allotype, Monticello, 111., June 28, 1914. Paratypes, two males. Mahomet, 

 111., August 6, 1914; two males and two females, Urbana, 111., June 17, 1916; 

 one male and one female, same locality, June 20, 1915; one male and one female, 

 same locality, June 23, 1916 (Hart and Malloch). 



Type in collection of Illinois Natural History Survey. 



Sapromyza fuscibasis, sp. n, 

 Male and Female. — Yellow testaceous, shining. Each wing with 6 brown 

 spots as follows: on each cross-vein, at apices of veins 2,3 and 4, and on last 

 section of 3 beyond cross-\ein; base of third \'cin dark brown. All hairs and 

 bristles black. 



June, 1<J20 



