22 SOUTH AMERICAN TIPULIDAE 
cutum and the anterior two-thirds of the scutum hght yellow poUinose ; scutel- 
him Ught gray pruinose, a dark brown basal spot on either side of the middle 
line; postnotum with the margins brown enclosing a gray pruinose triangle 
whose point is behind. Pleura light yellow poUinose with large brown patches 
on the mesepisternum and mesosternum. Halteres long and slender, the 
extreme base and the tip of the knob light yellow, the remainder brown. 
Legs with the coxae dull yellow with brown clouds over a large portion of the 
outer faces; trochanters dull yellow, a brown cloud at the tip behind; femora 
light yellowish brown, the apical third yellow and including a broad brown sub- 
apical band; tibiae and tarsi brown. Wings hyaline, the costal cell before the 
supernumerary cross-vein with two yellow blotches surroimded by a brown 
margin; remainder of the wing with numerous brown markings arrangetl as 
in the figure. Venation: (see plate I, fig. 11) a spur near the origin of Rs 
w^hich is very long; R2+3 in a line with Rs; inner end of the elongate cell 1st Mz 
only a little longer than the cross-vein r-m and the basal deflection of 7?4+5. 
Abdominal tergites brown with a large rounded yellowish brown patch 
enclosing the impressed mark at near mid -length of the segments; caudal mar- 
gins of the sclerites narrowly pale; sternites dark brown. 
Habitat. — Colombia. Holotype, 9 , La Cumbre, Colombia, 
altitude 6600 feet, May 18, 1914 (Parish coll.). 
This insect is closely related to E. circinata Osten Sacken, of 
Costa Rica, in the elongate antennae, but the two forms may be 
separated by the following key: 
1. Antennae brown, the first flagellar segment yellow; wings broader, gray- 
ish, cell 1st Mi not so elongated, the petiole of cell Ri long. (Costa 
Rica) circinata O. S.'* 
Antennae brown, the first flagellar segment yellow with a brown ring, the 
two succeeding segments broadly tipped with yellow; wings narrower, 
hyaline, cell 1st M2 elongated, the petiole of cell R2 short. (Colombia) 
gracilicornis sp. n. 
Genus LIMNOPHILA Macquart 
Lininophila Uoydi Alexander 
1913. Limitophila Uoydi Alexander, Journ. N. Y. Ent. Soc, xxi, p. 205, pi. 
5, fig. 9. 
One male from Huigra, Ecuador, altitude 4500 feet, June 15, 
1914, collected by Parish. 
Subfamily Tipulinae 
Tribe Tipulini 
Genus TIPULA Linnaeus 
Tipula obliquefasciata Macquart 
1S4(). Tipula obliquefasciata Macquart, Dipt. Exot. Suppl., i, p. 15, pi. 1,, 
fig. 10. 
3° 1886. circinata Osten Sacken, Biol. Centr.-Amer., Dipt., i, p. 9, pi. I, fig. L 
