INSKCUTOR INSCITI/^ MENSTRUUS 129 
popygium with the nmth tergite very reduced, hidden, the lat- 
eral margins pale, the median area dark brown, shiny ; eighth 
sternite unarmed. 
Holotype, male, Colorado. (From the collection of C. V. 
Riley.) 
Type, Cat. No. 19979, U. S. Nat. Mus. 
Tipula satyr, new species. 
Male. — Length, 13 mm. ; wing, 15.3 mm. 
Palpi short, dark brown. Frontal prolongation of the head 
short, light brown, the dorsal surface light gray, the nasus 
prominent. Antenna with the first segment brown ; the second 
segment brighter, more yellowish ; flagellum with the segments 
almost unicolorous, dark brown, the basal enlargement a little 
darker. Head light gray with a distinct frontal tubercle that 
is indistinctly impressed medially. 
Mesonotal pr^escutum very dull yellow with three broad dark 
brown stripes; pseudosutural fovese low down on the lateral 
margin of the sclerite ; thoracic interspaces with abundant long 
pale hairs ; scutum, scutellum, and postnotum dull gray. Pleura 
gray, the dorso-pleural membranes more yellowish. Halteres 
brown, the knobs darker. Legs with the coxa light gray pro- 
vided with abundant long pale hair; trochanters brownish 
gray ; femora yellow at the base, soon passing into dark brown ; 
tibiae and tarsi brown. Wings light brownish gray, the costal 
cells similar, not brightened ; stigma brown ; veins dark brown ; 
a broad vitreous band before the cord extending into the base 
of cell M4. 
Abdominal tergites hairy, dull orange with three brown 
stripes, the lateral pair clearer ; segments 2 to 8 broadly ringed 
with silvery around the caudal margin, broadest and clearest 
on the second to fourth segments. Hypopygium with the 
ninth tergite having the lateral angles prominent, obliquely 
truncated, the outer lobe subacute, the inner lobe much shorter, 
blunt; the angles separated by a double median notch; from 
the outer margin of the base of the produced angles arises a 
prominent, acute, conical, orange-colored horn that is directed 
