226 
A*, Preefurca relatively short, distinctly shorter than the breadth of the first and 
second basal cells together, next its base ; or, much 
less than half the length of the intersected apical area 
of the wing beyond the basal cells. 
bl. Species of larger size, with wings at least 17 mm. long, the auxiliary 
vein stopping far short of the middle of the inner 
Marginal “Golem r ee kicls arcs cals See subtler Jacens. 
b?. Species of smaller size, with wings less than 17 mm. long, the auxiliary 
vein reaching the middle of the inner marginal cell. 
cl, Przefurca contained about two and a half times in the length of the 
intersected apical area of the wing beyond the basal 
cells. 
d', Larger forms; the marginof some of the veins discolored. 
lethea. 
d?. Smaller forms ; some of the principal veins discolored (in: some 
obscure specimens, this discoloration may be wholly 
or partially obliterated))rss. «. see ce nee lapillescens. 
c?, Preefurca only one third the length of the intersected apical area of 
the wing beyond the basal cells. ...... ;---Spoliata, 
, 
Tipula magnifica. 
JEL, iss ates Sh 
Wings slightly more than four times as long as broad, uncolored 
except for the faint stigma. Auxiliary vein terminating at some 
distance before the middle of the inner marginal cell; poststig- 
matal cross vein (uniting the first and second longitudinal veins) 
oblique and moderately long ; trapezoidal cell elongate. Praefurca 
of normal length. Second posterior cell more than twice as long as 
its petiole. Middle branch of the fourth longitudinal vein gently 
arcuate, making the third posterior cell apically narrower than the 
fourth. Discal cell not very large, less than twice as long as broad. 
Sixth longitudinal vein distant from the fifth. Legs moderately 
slender, the femora distinctly stouter than the tibizs and very 
slightly more than half as long as the wings, the tibiz a very little 
longer than the femora, and the middle tarsi nearly two fifths longer 
than the tibize. Abdomen light colored, with slender median and 
broad lateral darker stripes. 
This is by far the largest fossil Tipulid known, but is not so large 
as some modern species. 
, Length of wings, 29.5—30 mm. ; fore femora, 15.5 mm.; tibia, 
18.5 mm.; mid femora, 15.5 mm.; tibiz, 18 mm.; tarsi, 24.5 
mm. ; hind femora, 16.5? mm.; tibia, 19.75 mm. 
