238 
nearly or quite two thirds as long again as the tarsi. Abdomen 
obscure in the specimens seen. 
Length of wings, 14.5 mm. ; fore femora, 8.5 mm.; tibiz, 10.5 
mm. ; tarsi, 16 mm. ; mid femora, 9 mm. ; tibie, 9.75 mm. ; tarsi, 
16 mm. ; hind femora, 9 mm. ; tibiz, ro mm.; tarsi, 17 mm. 
Florissant, Colorado. Two specimens, one d, one uncertain ; 
Nos. 8300 and 8831, 11335. 
Tipula spoliata. 
Tipula spoliata Scudd,, Tert. Ins. N. A., 577-578, pl. 10, fig. 4 (1891). 
This species forms a close link between the preceding three 
species of Tipula and the species of Tipulidea which follow, the 
prefurca being intermediate in length. In size, it agrees with Z. 
lapillescens. 
Green River, Wyoming. 
TIPULIDEA (Tipula, nom. gen., eidos) gen. nov. 
I venture to separate from Tipula, to which it is otherwise 
closely related, a group of species, all the members of which are 
smaller than the smallest true Tipule,-living or fossil,* known to 
me, and which are peculiar for the extreme brevity of the prz- 
furca; in this respect they closely resemble Pachyrhina, though 
in the petiolate character of the second posterior cell they agree 
with Tipula and not with Pachyrhina. ‘They evidently form a 
group intermediate between these two genera. The apical cells 
are slenderer than in Tipula; the przefurca is very oblique, as in 
Pachyrhina, and is no longer, or scarcely longer than the greatest 
width of the first basal cell; in consequence the inner marginal 
is but little if at all larger than the discal cell; the petiole of 
the second posterior cell is rather short, but the cell is never ses- 
sile. It may be added that the fifth longitudinal vein is scarcely 
bent at the great cross vein, but is apically curved downward ; 
more distinctly and more uniformly than in Tipula, it is aceom- 
panied throughout its course by a spurious vein beneath it; and 
the first longitudinal vein runs so close to the margin as to leave 
* Except 7. angustata Novak from the Egerer tertiary basin, the wing of which is only 
about 9mm. long. It should also be remarked that Loew, in his too brief account of the 
amber Diptera, says that the species of Tipula entombed therein are remarkable for their 
small size and specifies two which are only about 7 mm. long. Perhaps they may proye 
to belong to Tipulidea. 
