358 DIPTEROUS GENUS TIPULA' 



cell, intersected here by a gray line of the ground color; a large white patch 

 in second basal cell beyond the middle; a conspicuous white spot before 

 and one beyond the middle in anal cell, the former extending broadly across 

 the first axillary cell; both basal cells, anal and first axillary cells, fourth 

 and fifth posterior cells along their dividing vein more or less distinctly 

 margined with whitish. 



9 , Length, 17.5 mm.; wing, 17.5 mm. 



Anterior leg: femur, 8 mm.; tibia, 10 mm.; tarsus, 13.5 mm. 



Differs from the male, aside from size, by its rather reddish yellow 

 color and much shorter antennae; first three joints of palpi pale at tip. 

 Abdomen: Longitudinal stripes of tergum broad, becoming almost con- 

 fluent posteriorly. Ovipositor testaceous; upper valves twice the length 

 of the basal pieces, very slender, lower valves three-fifths the length of 

 the upper, parallel and wider than the latter. First posterior cell, except 

 base and a median spot, white, secood and third posterior cells white in 

 basal part. 



Holotype: cf ; Provo, Utah. July 30, 1912. (Tom Spalding.) 

 Allotype: 9 ; Provo, Utah. August 1, 1912. (Tom Spalding.) 

 Paratypes: cfcf, 9; Provo, Utah. August 14, 1913. (Tom 



Spalding). Jemez Spring's, New Mexico, August 14, 1913. All in 



author's collection. 



For similarity to other species, see under doanei. The peculiar 



structure of the lateral appendage distinguishes this species from 



all other species of the group of which I have knowledge. 



Tipula derelicta spec. n. (Plate XIII, figs. 14 and 15; plate XIV, fig. 6.) 



Brown; wing markings very obscure. Lateral appendages with three 

 processes, the middle one triangular, membranous. 



d^. Length, 9.5 mm.; wing, length 10.5 mm.; width at widest part, 3.5 

 mm. 



Anterior leg: femur, 5.5 mm.; tibia, 7.5 mm.; metatarsus, 5 mm. 



Head yellowish gray; occiput with a large brown spot extending forward 

 upon the front and beset with rather conspicuous black hairs each side 

 behind the eyes. Front and face paler, whitish poUinose. Rostrum tes- 

 taceous, dull; an ill-defined fuscous line each side and a similar line above 

 extending upon the nasus, the latter beset with black hair. Palpi stout, 

 fuscous, sparsely hairy, first joint short, second longer, thickened apically, 

 the third joint conspicuously thicker in its whole length than the rest of the 

 palpus and longer than the second joint, fourth joint thicker than usual 

 and scarcely as long as the three preceding joints together. Antennae:^ 

 scape yellow, flagellum dark brown. 



Thorax grayish fuscous. CoUare dusty yellow, a median spot and 

 anterior margin fuscous. Mesonotum grayish fuscous, lateral stripes 



* Defective in all my specimens. 



