227 
Florissant, Colorado. Three 2 specimens, Nos. 5481, 12107, 
16310 and 16311. 
Tipula rigens. 
Plies, ge 5) ple Os tes: 25) 3. 
Wings four or slightly less than four times as long as broad, un- 
colored, except for the rounded stigma which is situated above the 
proximal half or more of the discal cell and is denser on its distal 
than its proximal side. Auxiliary vein terminating at the middle 
of the inner marginal cell; poststigmatal cross vein slightly oblique 
and moderately long (it is given too short in pl. 5, fig. 5); trape- 
zoidal cell brief. Prafurca of normal length. Petiole of second 
posterior cell varying from about half as long as the discal cell to 
nearly its length. Fifth posterior cell much broader at base than 
at margin. Discal cell of moderate size, nearly twice as long as 
broad. Sixth longitudinal vein moderately distant from the fifth ; 
seventh longitudinal vein much shorter than half the length of the 
wing. Femora moderately stout, distinctly stouter than the slender 
tibiz, half or almost half as long as the wings, the tibiz a little longer 
than the femora, and the tarsi of the fore pair one third, of the mid 
pair nearly one half longer than the tibiz. Abdomen light colored 
and, when not obscured, with median and marginal narrow dark 
stripes, and occasionally with a feebler intermediate stripe on either 
side. 
Length of wings, 21-25 mm. ; fore femora, 11 mm. ; tibiz, 13.5 
mm. ; tarsi, 18.5 mm.; mid femora, 11 mm.; tibiz, 12 mm.; 
tarsi, 18.5 mm.; hind femora, 11.5 mm. ‘The measurements of 
the legs are all from one ,¥, having a wing length of about 22 mm. 
Florissant, Colorado. Fifteen specimens, all but one (with the 
possible exception of a second) females; Nos. 1638, 8061, 8088, 
BAT 7p stC427, 21392, “11669, 11077, T1805, 12105 and, 12106; 
12561, 13714, 16314 of mycollection; No. 14699 collected by 
Miss C. H. Blatchford; No. 1.793 of the Princeton collection. 
Tipula florissanta. 
Pig tig. 25 pl 6, aes. 4, 55 pl 7, op. fT. 
Wings almost exactly four times as long as broad, uncolored 
except for the rounded obovate stigma situated over the proximal 
two thirds of the discal cell. Auxiliary vein terminating at the 
