CHARLES P. ALEXANDER 27 
fleshy organ (a) directed caudad, enlarged at the base, pointed at the tip, their 
inner surface at the base with a great patch of chitinized bristles which are 
continguous with those of the opposite side in a position of rest. Pleural 
appendages consisting of an outer, very slender, subcylindrical, fleshy lobe, 
and an inner appendage consisting of a subchitinous arm ending in two 
chitinized lobes; the outer lobe is subrounded at the apex, the inner one pro- 
duced cephalad into a short, cylindrical point. Ninth sternite deeply split 
medially. Eighth sternite small, widely separated from the 8th tergite; from 
the middle portion of this sternite arises a tripartite appendage (see plate V, 
fig. 6) consisting of a long median lobe which is curved upward in dried speci- 
mens but becomes straightened out when the specimen is boiled; on either side 
of this elongate median lobe is a small, pale lateral lobe. 
The female is similar to the male with the antennae shorter; the ovipositor 
with the upper valves long, slender, subacute at their apices and slightly up- 
curved; sternal valves shorter and slightly higher. 
Habitat. — Ecuador. Holotype, cf, Alaoiisi, Ecuador, alti- 
tude 9450 feet, June 18, 1914 (Parish coll.). Allotype, 9, 
topotypic. 
The specific name is that of a native tribe of Ecuador; called 
also Xibaro and Gibaro. 
I regard this species as being the second most generalized 
member of the monih'fera group, exilis being a little more primi- 
tive in many respects. 
The two known species of this group with the antennae short 
in both sexes may be separated by the following key: 
1. Head and thorax dark gray with a narrow dorso-median line running the. 
length of the thorax; male hypopygium without a distinct caudal pro- 
longation to the ninth pleurite; eighth sternite with the lateral lobes of 
the tripartite appendage long; abdomen of the female long and slender 
(20 mm.). (Peru) exilis sp. n. 
Head light brown passing into gray on the occiput; thorax light brownish 
gray with brown stripes and numerous brown spots on the interspaces 
between these stripes; male hypopygium with a distinct fleshy lobe 
directed caudad and situated on the ninth pleurite; eighth sternite with 
the lateral lobes of the tripartite appendage short; abdomen of the female 
of moderate length (16 mm.). (Ecuador) jivaro sp. n. 
Tipula quichua sp. n. 
Monilifera group; antennae, bicolored; thorax light gray with a delicate 
dark brown dorso-median line running the entire length; wings largely gray 
and white; femora with the tips brown and a subterminal yellow ring. 
Female. — Length, 21 mm.; wing, 15.2 mm.; abdomen, 14. .5 mm. 
Frontal prolongation of the head light brownish gray; palpi short, dark brown. 
Antennae with the three basal segments light yellow; fourth segment with the 
TRANS. AM. ENT. SOC, XLII. 
