1912] New Neotropical Tipuline 359 
middle an interrupted narrow grey transverse stripe; segments 3—7 
similar, but the transverse grey impression is close to the base of the 
sclerite; segment 8 narrow, its caudal margin with an obtuse median 
tooth and an obtuse notch on either side (see Fig. t); 9th dark brown; 
sternites yellow, on segments 4—6 darker, brownish. Upper valves of 
the ovipositor (u) very slender, the tip not enlarged; 9th sternum long, 
its caudal margin deeply notched; valves short, acicular (1). 
Holotype, 2°, Aguna, Guatemala, Cent. Am. (alt. 1030 ft.) 
Aug. 6, 1902, (Dr. G. Eisen, coll.) 
Type in U.S. Nat. Mus. Coll. (No. 15,075). 
The specific name is derived from an ancient tribe of Indians 
dwelling in Yucatan and the adjoining parts of Guatemala, 
famous for their high degree of culture and the wonderful 
structures that they built. 
In the size and wing-coloration, this species suggests certain 
members of the oblique-fasciata group, (oblique-fasciata Mcqt.; 
cravert Bell.), but differs notably in venational- and leg-charac- 
ters. In general color it resembles the next species, fumipennis, 
of Peru. 
The venation is very like Holorusia Loew, and it is quite 
possible that maya may prove to belong to this genus: It is 
much smaller than rubiginosa Loew, which has the wings more 
uniform, dorsal thoracic stripes not clear, petiole of cell M;, 
short, etc. 
Tipula fumipennis, sp. n. 
Large; thorax dark brown; wings brown; tarsi very long. 
2 Length, about 19 mm.; wing, 23 mm. 
Fore leg, femur, 13.6 mm.; tibia, 14.5 mm.; tarsus, about 35 mm. 
Hind leg, femur, 18 mm.; tibia, 15.8 mm.; tarsus, about 39 mm. 
Head: Anterior prolongation of the front rich reddish-brown; 
palpi dark brown. Antennz basal segments reddish; flagellum broken. 
Front reddish; vertex rich reddish-brown, pale, almost white medially, 
this pale color including the occiput. 
Thorax: Pronotum rich brownish-yellow with two parallel dark 
brown marks on either side of the median line. Mesonotum, preescutum 
dark chocolate brown without distinct stripes; scutum and scutellum 
gradually paler brown, the postnotum yellowish with a very narrow, 
indistinct median brown line. Pleure, propleuree and cephalic portions 
of the mesopleure dark brown, except a very broad, conspicuous, yel- 
low band running across the dorsal portions of the pleurze from the 
pronotal scutellum back to under the wing-basis; remainder of pleuree 
yellow. Halteres brown, extreme base of stem yellowish. Legs: coxe, 
anterior and middle, dark brown, hind coxe lighter, yellowish-brown; 
femora, tibiz and tarsi brown. Wings: Infumed with brown; cells C 
and Sc brighter, yellowish; above the stigma grey; stigma and cell 
