22 SOUTH AMERICAN TIPULIDAE 



cutuin and the anterior two-thirds of the scutum hght yellow pollinose ; scutel- 

 lum light 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 pollinose with large brown patches 

 on the mesepisterruim 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 ci'oss-vein with two yellow blotches surrounded by a brown 

 margin; remainder of the wing with numerous brown markings arranged as 

 in the figure. Venation: (see plate I, fig. 11) a spur near the origin of Rs 

 which is very long; E2+3 in a line with Rs; inner end of the elongate cell 1st M2 

 only a little longer than the cross-vein r-ni and the basal deflection of i?4+6- 



Abdominal tergites brown with a large rounded j^ellowish 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 Ciimbre, 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 Isi M2 not so elongated, the petiole of cell R2 long. (Costa 

 Rica) circinata O. S.^° 



Antennae brown, the first flagellar segment yellow with a bi'own ring, the 

 two succeeding segments broadly tipped with yellow; wings narrower, 

 hyaline, cell 1st Mo elongated, the petiole of cell R^ short. (Colombia) 



gracilicornis sp. n. 



Genus LIMNOPHILA Macquart 

 Lininophila lloydi Alexander 



1913. LimunphUa lloydi 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(). Tijinla ohliqucjasciata Maccjuart, Dipt. Exot. Suppl., i, \). 15, pi. 1, 

 fig. 10. 



'« 1886. circinata Osten Backen, Biol. Centr.-Amer., Dipt ., i, i). 9, pi. I, fig. 1. 



