140 NORTH AMERICAN TIPULIDAE 



Plate VII 



Fig. 28. — Hypopygium of P. tenuis hamata; lateral aspect, showing the pro- 

 tuberant and strongly geniculate rod-like processes. 

 Fig. 29. — Hypopygium of P. nexilis; lateral aspect. 

 Fig. 30. — Hypopygium of P. cingtdata; dorsal aspect. 

 Fig. 31. — Hypopygium of P. obliterata; ventral aspect. 

 Fig. 32. — Hypopygium of P. wyalusingensis; ventral aspect. 

 Fig. 33. — Hypopygium of P. approxiynata, lateral a.spect. 

 Fig. 34. — Hypopygium of P. stigmatica; lateral aspect. 



