FUNGUS GNATS OF NORTH AMERICA. 163 



6. Neosmpheria maculipennis Williston. 

 1896. maculipennis Williston, Trans. Ent. Soc. London. 262. 

 Male. Length 5 mm. Antennse about as long as the head 

 and thorax together; the basal joints light yellow, the remainder 

 with a brownish tinge. Palpi brown ; front and face yellow ; 

 mesonotum, except the lateral margins, light brown, with black 

 hair and bristles ; indistinctly striped ; moderately shining. Pleu- 

 ra, cox?e and femora light yellow. Scutellum, except at its base, 

 light yellow, and with two bristles on its margin. Abdomen 

 light yellow, each segment with a large black or brown spot, 

 not reaching the hind margin. Tibiae and tarsi yellow, but ap- 

 pearing blackish from the abundant, short, black hair; front 

 tarsi more than twice the length of their tibiae. Wings nearly 

 hyaline, with the following markings : the tip of the subcostal 

 cell and the cell Ro+o beyond Ro+s- and the proximal end of the 

 cell R4+-,, brown ; a more distinct brown spot clouding the sub- 

 costal crossvein, the basal section of the radial sector, the base 

 of the cell R4+5, and, more diffusely, along the posterior branch 

 of the media, to connect with a spot running from the cell R4+5 

 into the hindermost posterior cell ; a smaller brownish spot in 

 the axillary angle ; costal and subcostal cells yellowish ; costa 

 produced beyond the tip of R4+5 ; R2+3 situated a little beyond 

 the furcation of the media. 1,000 ft., St. Vincent Isl., W. L 



7. Ncccniphcria iUustris n. sp. 



Male and female. Length 5 mm. Resembles A^. balioptcra 

 in possessing an elongate cell R^, but differs in the position of 

 the subcostal crossvein and in coloring ; from .¥. maculipennis 

 it differs in having the apex of the wing more widely brown. 



Head yellow, ocellar spot and palpi black ; antennae yellow, 

 intermediate joints little if any longer than broad, 2 or 3 black 

 setae at the apex of the second basal joint. Thorax yellow, 

 mesonotum with 5 brown stripes, scutellum with a brown spot 

 on the middle behind the suture, metanotum brown, setae black, 

 those on the humeri, at the base of the wing and the 2 on the 

 scutellum most prominent. jVbdomen yellow, the dorsum of 

 segments i, 3, 5 and 6 except at the incisures and a spot of 

 greater or lesser extent at the base of each of segments 2 and 

 4, brown. The brown on the third and fifth extends to the 

 lateral margins; hypopygium as figured (figs. 126, 127). Legs 



