DIPTERA-TIPULIDAE FROM JUAN FERNANDEZ 27 
the subcostal cell a little more infumed; stigma dark brown; obliterative areas 
before the stigma in cell Is¢ A, and as a narrow hyaline line on either side of 
the basal deflection of 47,,5, occupying the extreme end of cell R and the 
middle of cell 1s¢ J/,. Venation: 2, persistent for its entire length; basal de- 
flection of Ag,s5 short or punctiform; petiole of cell J7, about as long as cell 
1st M75; m-cu punctiform. 
First abdominal tergite dull yellow, the remaining tergites with a broad 
dark brown sublateral stripe that broadens behind to cover almost all of the 
segments; bases of the tergites yellowish; lateral margins broadly brownish 
yellow; caudal margins, especially of the subterminal segments, broadly yellow; 
sternites dull yellow. Basal shield of the ovipositor dark chestnut brown; valves 
of the ovipositor straight, the tergal valves considerably longer than the much 
deeper sternal valves. 
Flabitat. — Endemic in Masatierra. 
Holotype, 2, March. 
Type in the Riksmuseum in Stockholm. 
This interesting species of 7zpu/a agrees most nearly with 7. flavipennis 
Philippi (Chile) but is quite a different species. It is with great pleasure that 
this fly is dedicated to its discoverer. 


