198 Journal New York Entomological Society. t\"°'- ^^i- 



5. Dicranomyia longiventris new species. 



Male, length, 7.3 mm. ; wing, 8 mm. ; abdomen, 6.8 mm. 



Rostrum yellowish, palpi pale brown ; antennae dark brownish black, fla- 

 gellar segments oval, more elongated toward the tip of the organ; head gray. 



Mesonotal prsescutum light yellowish brown, a broad brown median stripe 

 with a narrower lateral stripe on either side behind joined to the caudal end 

 of the median stripe ; scutum with the lobes dark brown, median line whitish ; 

 scutellum and postnotum yellowish brown. Pleurje pale, dull whitish. Halteres 

 very long, brown, the knob a little darker. Legs long, brownish. Wings sub- 

 hyaline, stigma feebly indicated; venation (see PI. 2, fig. 3) : Sc, very long, Rs 

 short, about as long as the deflection of R^^._. but much more arcuated. 



Abdomen very long and slender, tergites dark brown, the lateral and 

 caudal margins of the sclerites narrowly pale, yellowish; sternites pale, dull 

 yellowish. Hypopygium with the gth tergite oval, the latero-caudal angles 

 broadly rounded, the caudal margin slightly concave. Pleurae short and stout, 

 the dorsal apical appendage long, slender, simple, ending in a sharp curbed 

 point ; the ventral appendage is a fleshy lobe much longer than the pleura ; 

 from the base of this lobe is borne another chitinized appendage which is 

 enlarged at its base, deeply bifid at its tip, one of the two teeth obtuse and 

 ending in long hairs, the other shorter and pointed ; midlength of this arm are 

 two pointed spines; this appendage is apparently borne by the base of the 

 fleshy ventral lobes. From the ventral side of the pleura projects a con- 

 spicuous fleshy lobe bearing long hairs; guard of the penis uniform in width, 

 a little pointed at the tip. (See PI. 3, fig. 2.) 



Holotype, S, Valle de las Papas, March 29, 191 2. 



Allotype, 5, with the type. 



Paratypes, 6 t?, 2 9, Valle de las Papas, March 22 to 29, 1912. 



D. longiventris belongs to the halterata group {halterata O. S., 

 particeps Doane, sinnllima Alex., et al.) with very long Sc^ and ex- 

 ceedingly long halteres. The extremely long abdomen easily separates 

 it from these allied forms. 



Genus GERANOMYIA Haliday. 



6. Geranomyia sp. 



One specimen from Almaguer, March 11. 1912, in too poor condi- 

 tion to determine. It belongs to the group of species containing 

 rostrata Say, insignis Loew, etc. 



