122 Annals Entomological Society of America [Vol. XV, 



an inconspicuous plate. Eyes rounded, with equal areolets, clothed 

 with numerous, but not dense, long hairs. Frons with parallel sides, 

 only a little constricted towards its middle, not at all prominent in 

 profile, about a half of the breadth of one eye. Antennee inserted below; 

 the second joint being a little longer than the first ; third joint as long 

 as the two first joints together, divided into three parts by two com- 

 plete and deep annulations; it is entirely clothed with rather long 

 hairs, like the basal joints. Face receding, sunken in the middle as 

 in the Rhagionidae. Mouth parts rudimentary; proboscis atrophied, 

 palpi very small. Thorax greatly developed, almost puffed up and 

 convex above; metapleura with long, erect hairs. Scutellum elongated, 

 rounded behind, flat above, with well developed basal depressions on 

 the sides, destitute of longer hairs at hind border. Halteres large, 

 with oval knob; squamulae rudimentary. Abdomen flattened, composed 

 of 7 segments, the last of which is only one-half as long as the preced- 

 ing one; genitaha small, but open. Legs long, intermediate pair short- 

 est. Front coxae greatly developed and apparently bisected, the plate 

 above them being very large ; middle and hind tibiae distinctly curved 

 and thickened; claws and pulvilli proportionately small. Pubescence 

 of legs and hairs of cox^e longer than in Chiromyza. Wings distinctly 

 pubescent on the whole surface; first and third longitudinal veins 

 clothed with long hairs above. Prsefurca short, originating over 

 the base of the discoidal cell. Second longitudinal vein short; 

 third vein single, ending before the tip of the wing; costa thickened 

 to a short space beyond the tip of third vein, but prolonged 

 as a thin ambient vein along the whole hind border of the wing. Dis- 

 coidal cell complete, about as long as broad, obtuse at its distal end; 

 second posterior cell sessile at base, the M forking before the hind cross 

 vein; the rudiment of M3 is wanting. Stalk of the anal cell short, much 

 shorter than the preceding part of the postical vein. Alula rudimentary. 

 Hind border of the wing with rather long ciHation. 



Named in honor of the Count A. A. Barbiellini, who during 

 the long years of his residence in S. Paulo has greatly contrib- 

 uted to the progress of entomological studies in Brazil, by the 

 publication of the Journal "O Entomologista Brasileiro" 1908- 

 1910, and now by the general Review "Chacaras e Quintaes." 

 The writer is indebted to him for large collections of Brazilian 

 Diptera, the exposition of which will appear in the future. 



Type: the following new species. 



Barbiellinia hirta n. sp. 



Type cf a single specimen in the writer's collection from Terme do 

 Lindoya (1000 m.), Serra Negra, Eita do do S. Paulo, Brazil, March, 

 1918. {A. A. Barbiellini). 



cf Length of body 8 mm. ; of wing 8 mm. 



