1921] Dietz: Impudica Group of Tipula TI 
Similar to sinistra; but larger, and from which it differs 
in the -prescutal markings and hypopygial construction, 
especially the tergite and the inner apical appendages; the 
antestigmal spot is well-nigh identical in both species. 
Tipula mitrata spec. n. 
Medium size. Head and thorax gray, abdomen yellow. Incision of 
hypopygeal tergite moderately deep, subparallel. Pleurites obtusely 
pointed; the lower apical appendages broad; the inner angle produced. 
Male.—Length 14 mm.; wing 14 mm. 
, Head: Rostrum reddish-brown, hairy vestiture blackish and rather 
long; nasus long and acute. Palpi fuscous. Antenne of moderate 
length, scapal and first joint of flagellum yellow, flagellar joints cylin- 
droidal. Face yellowish-white; front and vertex gray with well marked, 
dark fuscous line. 
Thorax gray. Pronotal scutum with median dark line; scutel pale 
yellow above. Prescutal lines brown, narrow, the inner pair wider in 
its anterior half, slightly curved outwardly anteriorly; interspaces with 
numerous setigerous punctures, bearing short, black hairs. Scutum 
more ashen-gray, a dark spot on the antero-exterior angle and an 
elongate spot near the median line. Scutel yellowish-gray, shining, 
with darker, median line. Postnotum dark gray, with median, dark line. 
Pleural episterna yellowish-gray, epimera dark-gray; pleuro-dorsal 
membrane sordid yellow, the whole pleura with a grayish-white pol- 
linosity. Legs yellow, hairy vestiture short, dense, blackish and 
appressed; femora conspicuously infuscate at the apex, tibiae not 
infuscate at apex and distinctly longer than the metatarsi; tarsi fuscous. 
Wings grayish, darker in cells R? and R?; cell C concolorous, cell S. c. and 
stigma pale fuscous, antestigmal spot distinct, extends broadly through 
outer end of cell R1! extreme end of cell M! basal half of cell 1st M2 into. 
base of cell M* and slightly into cell Cu'; post-stigmal spot distinct. 
Cell Ist M? about twice as long as wide, pentagonal; a large sub- 
hyaline. space in cell M! a sub-hyaline streak in cell A!; veins C, S. c. 
and R. yellow-brown, other veins brown. 
Abdomen yellow; tergites four to six with fuscous, dorsal streak, 
each tergite with a lateral curved, fuscous dash, abbreviated posteriorly ; 
margin of tergum grayish-white; venter with dusky, median stripe. 
Eight sternite subtruncate, with a rather narrow brush of yellowish- 
gray, not very stiff, bristles and a pencil of three or four bristles from 
the lateral angle bend inward; from the upper surface of the somite 
same distance from its free margin, arises a soft, membranous, narrow, 
white process, extending to about two-thirds the length of the brush. 
Hypopygium brown, shining; ninth tergite broadly and deeply chan- 
neled in the middle, incision V-shaped, subparallel, moderately deep, 
lobes with deep, rounded emargination, sides scarcely inflexed, angles 
of the median incision prominent, acute; subtergal process long, obtusely 
pointed. Ninth sternite with V-shaped emargination, the adjoining part. 
