68 Psyche [April 



60. Arista with scarcely perceptible pubescence. Ariz. 



Sapromyza hubbardi Coquillett. 



Arista short-plumose. Mex Sapromyza stata Giglio-Tos. 



61. Third vein with a single spot near middle of last section; 4 dorsocentrals; arista 



short-plumose. Que., N. H., Mass.*, N. J., Pa.*, La.*, 111.*; S. Dak. Aid- 

 rich Sapromyza philadelphica Macquart. 



Third vein with two spots near middle of last section 62 



62. Hind femora c? with black setulse beneath; three dorsocentrals; arista long- 



plumose. Eur., N. H., N. Y Sapromyza notata Fallen. 



Hind femora bare; four dorsocentrals; arista short-plumose. Pa., X. J., Cal.*, 

 Wash.* Sapromyza fraterna Loew. 



63. Abdominal segments marked with regular series of spots, or vittate 64 



Abdomen not seriately maculate 77 



64. Face with brown or black spot in middle above oral margin ; ususally scutellum 



bimaeulate also 65 



Face yellowish, not spotted; usually the scutellum not maculate 68 



65. Basal joints of antennae black; pleurae bimaeulate; thorax with a narrow median 



vitta; 2 dorsocentrals, no acrostichals, one sternopleural; middle tibiae with- 

 out preapical bristle; segments 3, 4, 5 of abdomen bimaeulate, a dorsal vitta 



on last three segments. Fla Sapromyza slossonae Coquillett. 



Antennae entirely yellowish; pleurae not maculate 66 



66. Thorax quadri vittate; hind tibiae with basal ring; pleurae bivittate; the flat 



disc of the scutellum with two indefinite broad brown marks; arista short- 

 plumose; upper side of abdominal segments trimaculate; palpi black; 3 dor- 

 socentrals, 6 acrostichals. Tex., W. Ind., Brazil, N. J.; Mass.*, La.*; Kans. 



Aldrich Minettia macula Loew. 



Thorax not clearly vittate; tibiae not ringed; pleurae not vittate; scutellum 

 bimaeulate 67 



67. Segments 2, 3, and 4 each with two spots, c? with median vitta on terminal 



segments also. W. Ind Sapromyza octopunctata Wiedemann- 



Abdomen with series of median and lateral spots; arista short-pubescent. 

 W. Ind Sapromyza ingrata Williston. 



68. Mesonotum vittate 69 



Mesonotum not vittate; scutellum not maculate 72 



69. Mesonotum with broad median vitta; palpi yellow; arista plumose; tibiae not 



ringed; hind femora tipped with two small dark spots; abdominal spots not 

 clearly defined, sometimes forming a basal fascia on the segments. Cal.* 



Minettia univittata Coquillett. 



Mesonotum with lateral vittae; palpi blackish; arista short-pubescent 70 



70. Hind tibiae with proximal ring; scutellum typically bimaeulate; mesonotum 



quadri vittate; 4 dorsocentrals, 2 acrostichals, 2 sternopleurals; antennae red; 



71 



Tibiae not ringed; scutellum not maculate; notum shining, with three broad 

 vittae, the median geminate; third antennal joint black; abdominal segments 

 more or less trimaculate. St. Vine Sapromyza venusta Williston. 



