348 dipterous genus tipula 



Auxiliary Synoptical Table op Species 



1. Joints of flagellum of antennae more or less distinctly bicolored 2 



Joints of flagellum unicolorous 4 



2. All the flagellum joints distinctly bicolored; a fuscous stripe extends 



from neck to mesosternal suture hebes Loew 



Outer joints of flagellum approximately unicolorous; fuscous line, 

 when present, does not extend beyond the collare 3 



3. Joints of flagellum slender, cylindrical, more than twice as long as 



transverse diameter ottawaensis sp. n. 



Joints of flagellum ovoidal, less than twice as long as transverse di- 

 ameter criddlei 9 sp. n. 



4. With fuscous pleural stripe 5 



Without such a stripe 10 



5. Lower part of sternopleura infuscate 6 



Lower part of sternopleura not infuscate 8 



6. Abdomen with median, longitudinal dorsal vitta 7 



Abdomen without such a vitta coloradensis Doane 



7. Tergites 1 to 4 of abdomen with transverse lateral fuscous line. 



doanei sp. n. 

 Tergites 1 to 4 without such lines madera Doane 



8. Pleural stripes well marked. Mesonotum margined with fuscous an- 



teriorly, its median stripe concolorous, margined with fuscous. . 9 



Pleural stripe feeble, incomplete. Mesonotum not margined with 



fuscous anteriorly, median stripe fuscous ingrata sp. n. 



9. Yellowish; the short fuscous line along the dividing line of the middle 



mesonotal stripe reaching the anterior margin of the mesonotum. 



alia Doane 



Grayish-fuscous; the short fuscous line does not reach the anterior 



margin of the mesonotum clathrata sp. n. 



10. Wing markings distinct 11 



Wing markings faint; white spot in second basal cell obsolete. 



derelicta sp. n. 



11. Pleura entirely pale yellow 12 



Pleura not entirely pale yellow 15 



12. All the posterior cells more or less white fallax Loew 



Not all of the posterior cells white spotted 13 



13. A well marked fuscous stripe on side of neck extends across the pro- 



pleura rohweri Doane 



A fuscous spot on the propleura only 14 



14. Flagellum yellowish-fuscous grata Loew 



Flagellum dark brown suspecta sp. n. 



15. Meso- and sterno-pleura only, infuscate criddlei cT sp. n. 



Entire pleura grayish-fuscous newcomeri Doane 



agree with the description. Aside from minor differences the ninth ster- 

 nite is simply emarginate, not completely divided; the lateral appendages 

 are wanting entirely and the pleura are distinct. It bears the label, "Deer 

 Park, Placer Co., Cal.," the type locality of the species. 



