350 CHARLES T. BRUES. 



cent, West Indies, also six males and one female from Grenada, W. I. 

 All were collected by H. H. Smith and sent by Dr. Williston, who 

 received them from the Entomological Society of London. 



The relationship of this species to incisuralis Lw. is such that the 

 variety perplexa forms a connecting link between them. Typical 

 divaricata is more yellow and smaller than perplexa and has a more 

 tropical range. 



P. divaricata Aid., var. perplexa, var. nov. 

 Coqnillett (P. incisuralis), Canadian Entomologist, xxvii, 104. 



Precisely like the foregoing, but differing by its larger size and 

 more northern range. It is very closely related to both incisuralis 

 Lw. and divaricata Aid., but can be readily distinguished from the 

 former by the absence of the four or five small seta? on the hind 

 tibiae, which characterize incisuralis. It also agrees more closely 

 with divaricata on account of the extremely small size of the lateral 

 scutellar bristles, which are large and stout in incisuralis. It would 

 seem to be an incipient species. This is evidently the form tabu- 

 lated by Coquillet (loc. cit.) as typical incisuralis. 



Three specimens : one from Tick Island, Fla. (Johnson), May 3, 

 1894, and two from Tifton, Ga., October 16 and 17, 1896 (Hough). 



Phora groenlamlica Lundbeck. (Fig. 17.) 

 Saertryk af Vidensk. Medd. fra den naturh. Foren. i Kjbh. (1900.) 



Blaek. slightly cinerascent, thorax somewhat shining, abdomen opaque. Head, 

 antennae and palpi, blaek. Wings hyaline, slightly yellowish, costa provided with 

 rather long bristles, nervures dark; third longitudinal vein furcate, the four 

 longitudinal nervures more slender than the first and third veins. Halteres 

 black, legs piceous, everywhere covered with short hairs; posterior tibiae with 

 rather long spurs. Male and female, length 2-2.3 mm. 



Eelated to Phora ciliafa, but readily distinguished by the black palpi, longer 

 costal bristles and different wing venation. 



Male. Black, slightly cinerascent, thorax somewhat shining, densely covered 

 with short, delicate, brown pile; with long macrochsetse along the margin. 

 Abdomen opaque. Head equal to thorax in width, front wide, black, provided 

 with long reflexed maerocbEetse and with a median impressed line. Palpi black, 

 sometimes brownish ; antenna? black. Wings hyaline, slightly yellowish, costa 

 provided with rather long bristles, nervures dark brown, first longitudinal vein 

 ending before the third, third furcate at the apex. Four delicate longitudinal 

 nervures are present, the first of which is rather curved at the base and straight 

 apically, ending before the apex of the wing, second and third of these four 

 nervures slightly sinuate, especially the third, fourth almost straight. Near the 

 front margin of the wing, extending from the third longitudinal vein, is an obso- 

 lete fold which simulates a nervure. Halteres black ; legs piceous varying to 



